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E1 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : ( 9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 4 0 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 ABBREVIATIONS SHEET INDEX E1 - COVER SHEET APPLICABLE CODES AND STANDARDS VICINITY MAP N GENERAL NOTES *ALL WORK TO COMPLY WITH ABOVE CODES E2 - SITE PLAN E8 - ELECTRICAL NOTES E3 - PROPERTY PLAN E4 - ELEVATIONS E8.1 - BATTERY INSTALL DIAGRAM * OCCUPANCY TYPE: R-3 * CONSTRUCTION TYPE: TYPE V-B * UNSPRINKLERED DWELLING INFO E7 - SINGLE LINE DIAGRAM SPECSHEETS (N) AC DISCONNECT (N) ENPHASE METER COLLAR E9 - PLACARDS SCOPE OF WORK: -1 1 1 (N) ESS BATTERY-ENPHASE IQ BATTERY 10C (N) AC COMBINER(S) ·2025 CBC ·2025 CRC ·2025 CEC ·2025 CMC ·2025 CPC ·2025 CFC ·2025 CEBC ·2025 BUILDING ENERGY EFFICIENCY STANDARDS ·AUTHORITY HAVING JURISDICTION ·CURRENT LOCAL FIRE CODE 1. EXISTING PLUMBING VENTS, SKYLIGHTS, EXHAUST OUTLETS, VENTILATIONS INTAKE AIR OPENINGS SHALL NOT BE COVERED BY THE SOLAR PHOTOVOLTAIC SYSTEM. 2. EQUIPMENT ELECTRONIC POWER CONVERTERS, MOTOR GENERATORS, PV MODULES, AC MODULES AND AC MODULE SYSTEMS, DC COMBINERS, PV RAPID SHUTDOWN EQUIPMENT(PVSRE), PV HAZARD CONTROL EQUIPMENT(PVHCE), PV HAZARD CONTROL SYSTEMS( PVHCS), DC CIRCUITS CONTROLLERS, AND CHARGE CONTROLLERS INTENDED FOR USE IN PV SYSTEM SHALL BE LISTED OR BE EVALUATED FOR THE APPLICATION AND HAVE A FIELD LABEL APPLIED. [CEC 690.4(B)] 3. ALL OUTDOOR EQUIPMENT SHALL BE NEMA 3R RATED, INCLUDING ALL ROOF MOUNTED TRANSITION BOXES AND NON ROOF SWITCHES. ROOF SWITCHES TO BE NEMA 4 RATED. 4. ALL EQUIPMENT SHALL BE PROPERLY GROUNDED AND BONDED IN ACCORDANCE WITH CEC ARTICLE 250. 5. PV SYSTEM DC CIRCUIT AND INVERTER OUTPUT CONDUCTORS AND EQUIPMENT SHALL BE PROTECTED AGAINST OVERCURRENT WITH OVERCURRENT. CIRCUITS SIZED IN ACCORDANCE WITH 690.8(A)(2) ARE REQUIRED TO BE PROTECTED AGAINST OVERCURRENT AND OVERCURRENT PROTECTIVE DEVICES. EACH CIRCUIT SHALL BE PROTECTED FROM OVERCURRENT IN OCCURRENCE WITH 690.9(A)(1), (A)(2), OR (A)(3) [CEC 690.9(A)] 6. PV SYSTEM CIRCUITS INSTALLED ON OR IN BUILDINGS SHALL INCLUDE A RAPID SHUTDOWN FUNCTION TO REDUCE SHOCK HAZARD FOR FIRE FIGHTERS IN ACCORDANCE WITH 690.12(A) THROUGH (D). 7. THE OUTPUT OF INTERACTIVE ELECTRIC POWER PRODUCTION EQUIPMENT SHALL BE AUTOMATICALLY DISCONNECTED FROM ALL UNDERGROUND CONDUCTORS OF THE PRIMARY SOURCE WHEN ONE OR MORE OF THE PHASES OF THE PRIMARY SOURCE TO WHICH IT IS COONECTED OPENS. THE INTERACTIVE ELECTRIC POWER PRODUCTION EQUIPMENT SHALL NOT BE RECONNECTED TO THE PRIMARY SOURCE UNTIL ALL THE PHASES OF THE PRIMARY SOURCE TO WHICH IT IS CONNECTED ARE RESTORED. THIS REQUIREMENT SHALL NOT BE APPLICABLE TO ELECTRIC POWER POWER PRODUCTION EQUIPMENT PROVIDING POWER TO AN EMERGENCY OR LEGALLY REQUIRED STANDBY SYSTEM. [CEC 705.40] 8. INSULATED CONDUCTORS OR CABLES USED WHERE EXPOSED TO DIRECT RAYS OF THE SUN SHALL BE LISTED BEING SUNLIGHT RESISTANT. [CEC 310.10(D)(1)] 9. TYPE PV WIRE OR CABLE AND TYPE DISTRIBUTED GENERATION (DG) CABLE SHALL BE LISTED. [CEC 690.31(C)] 10. ALL CONDUCTORS SHALL BE MARKED ON EACH END FOR UNIQUE IDENTIFICATION. 11. AN INSULATED GROUNDED CONDUCTOR OF 6 AWG OR SMALLER SHALL BE IDENTIFIED AS A CONTINUOUS WHITE OUTER FINISH. [CEC 200.6 (1)] 12. THE OUTPUT OF AN INTERCONNECTED ELECTRIC POWER SOURCE SHALL BE PERMITTED TO BE CONNECTED TO THE LOAD SIDE OF THE SERVICE DISCONNECTING MEANS OF THE OTHER SOURCE(S) AT ANY DISTRIBUTION EQUIPMENT ON THE PREMISES. WHERE DISTRIBUTION EQUIPMENT OR FEEDERS ARE FED SIMULTANEOUSLY BY A PRIMARY SOURCE OF ELECTRICITY AND ONE OR MORE OTHER POWER SOURCE(S), THE FEEDERS OR DISTRIBUTION EQUIPMENT SHALL COMPLY WITH RELEVANT SECTIONS OF 705.12(A) AND (B). 13. AN ELECTRIC POWER PRODUCTION SOURCE SHALL BE PERMITTED TO BE CONNECTED TO THE SUPPLY SIDE OF THE SERVICE DISCONNECTING MEANS [OF A SERVICE] IN ACCORDANCE WITH 230.82(6); SOLAR PHOTOVOLTAIC SYSTEMS AND/OR ENERGY STORAGE SYSTEM, OR INTERCONNECTED POWER PRODUCTION SOURCES, IF ROVIDED WITH DISCONNECTING MEANS LISTED AS SUITABLE FOR USE AS SERVICE EQUIPMENT, AND OVERCURRENT PROTECTION AS SPECIFIED IN PART VII OR ARTICLE 230.CEC 705.11(A)(2) 14. MEANS SHALL BE PROVIDED TO DISCONNECT POWER SOURCE OUTPUT CIRCUIT CONDUCTORS OF ELECTRIC POWER PRODUCTION EQUIPMENT FROM CONDUCTORS OF OTHER SYSTEMS. A SINGLE DISCONNECTING MEANS SHALL BE PERMITTED TO DISCONNECT MULTIPLE POWER SOURCES FROM CONDUCTORS OF SYSTEMS. THE DISCONNECTING MEANS SHALL COMPLY WITH 705.20(1)-(7) 15. WHERE PV SYSTEM DC CIRCUIT'S RUN INSIDE A BUILDING, THEY SHALL BE CONTAINED IN METAL RACEWAYS TYPE MC METAL CLAD CABLE OR METAL ENCLOSURES FROM POINT OF PENETRATION OF THE SURFACE OF THE BUILDING TO THE FIRST READILY ACCESSIBLE DISCONNECTING MEANS. [CEC 690.31(D)] 16. FLEXIBLE, FINE-STRANDED CABLES SHALL BE TERMINATED ONLY WITH TERMINALS, LUGS, DEVICES OR CONNECTOR THAT ARE IS IN ACCORDANCE WITH CEC 110.14. 17. CONNECTORS SHALL BE OF LATCHING OR LOCKING TYPE. CONNECTORS THAT ARE READILY ACCESSIBLE AND OPERATING AT OVER 30V DC OR 15V AC SHALL REQUIRE TOOL TO OPEN AND MARKED "DO NOT DISCONNECT UNDER LOAD" OR "NOT FOR CURRENT INTERRUPTING". [CEC 690.33(C) & (D)] 18. EQUIPMENT GROUNDING CONDUCTOR FOR PV MODULES SMALLER THAN 6AWG SHALL BE PROTECTED FROM PHYSICAL DAMAGE BY A RACEWAY OR CABLE ARMOR. [CEC 250.120(C)] 19. EQUIPMENT GROUNDING CONDUCTOR FOR PV SYSTEM CIRCUITS SHALL BE SIZED IN ACCORDANCE WITH 250.122. [CEC 690.45] 20. GROUNDING ELECTRODE CONDUCTOR(S) SHALL BE INSTALLED IN ONE CONTINUOUS LENGTH WITHOUT A SPLICE OR JOINT. IF NECESSARY, SPLICES OR CONNECTIONS SHALL BE MADE AS PERMITTED. [CEC 250.64(C)] 21. ALL SMOKE ALARMS, CARBON MONOXIDE ALARMS AND AUDIBLE NOTIFICATION DEVICES SHALL BE LISTED AND LABELED IN ACCORDANCE WITH UL 217 AND UL 2034. THEY WILL BE INSTALLED IN ACCORDANCE WITH NFPA 72 AND NFPA 720. [CRC R310] 22. SMOKE ALARMS AND CARBON MONOXIDE ALARMS WILL BE RETROFITTED INTO THE EXISTING DWELLING. THESE SMOKE ALARMS ARE REQUIRED TO BE IN ALL BEDROOMS, OUTSIDE EACH BEDROOM, AND AT LEAST ONE ON EACH FLOOR OF THE HOUSE. CARBON MONOXIDE ALARMS ARE REQUIRED TO BE RETROFITTED OUTSIDE EACH BEDROOM AND AT LEAST ONE ON EACH FLOOR OF THE HOUSE. THESE ALARMS ARE NOT REQUIRED TO BE INTERCONNECTED AND MAY BE SOLELY BATTERY OPERATED IF THE ALTERATION OF THE ELECTRICAL SYSTEM DOES NOT INVOLVE THE REMOVAL OF INTERIOR WALL AND CEILING FINISHES INSIDE THE HOME, OTHERWISE, THE ALARMS MUST BE HARD WIRED AND INTERCONNECTED. [CRC 310.4 EXCEPTION 4 AND R310.6 EXCEPTION 5]. AMPERE ALTERNATING CURRENT AUTHORITY HAVING JURISDICTION BUILDING CONCRETE COMBINER BOX CALIFORNIA ELECTRICAL CODE COPPER DISTRIBUTION PANEL DIRECT CURRENT EQUIPMENT GROUNDING CONDUCTOR (EXISTING) FIELD VERIFIED GALVANIZED GROUNDING ELECTRODE CONDUCTOR GROUND HOT DIPPED GALVANIZED CURRENT CURRENT AT MAX POWER INVERTER SHORT CIRCUIT CURRENT KILOVOLT AMPERE KILOWATT LOAD BEARING WALL MINIMUM MAIN CIRCUIT BREAKER MAIN SERVICE PANEL (NEW) NEMA 3R, RAINTIGHT OUTSIDE RATED NATIONAL ELECTRICAL CODE NOT TO SCALE ON CENTER OVERCURRENT PROTECTION DEVICE POLES -BREAKER POLES- PROPERTY LINES PHOTOVOLTAIC POLYVINYL CHLORIDE ROOF RAFTER SOLID BARE COPPER SOLAR PLANE SUBPANEL SCHEDULE STAINLESS STEEL PRACTICAL TESTING CONDITIONS SOLAR WATER HEATER TYPICAL UNLESS NOTED OTHERWISE VOLT VOLTAGE AT MAX POWER VOLTAGE AT OPEN CIRCUIT WATT A AC AHJ BLDG CONC CB CEC CU DP DC EGC (E) FV GALV GEC GND HDG I Imp INVT Isc kVA kW LBW MIN. MCB MSP (N) N3R NEC NTS OC OCPD P PL PV PVC RR SBC SP SPL SCH SS PTC SWH TYP UNO V Vmp Voc W - 200A ENPHASE IQ COMBINER 6C - 30A NON-FUSED 1 E7.1 - SINGLE LINE DIAGRAM NOTES & CALCS E8.2 - BATTERY INSTALL DIAGRAM E8.3 - BATTERY INSTALL DIAGRAM EXISTING AC SYSTEM SIZE:3.80KW EXISTING PV & NEW (ESS) AC SYSTEM SIZE:10.88KW NEW (ESS) AC SYSTEM SIZE:7.08KW No. E 22012 FESSIOROD P NALREAENTEGGIUHN EG EERR ALELERICCT IASTRNATEFOLIOF CA MANDEIRHO IS TE AM Exp. 09/30/2 7 STAMPED 04/16/2026 GAS FR O N T O F RE S I D E N C E EXISTING HOUSE EX I S T I N G GA R A G E WINDOW INV ESS ACD ACC MSP EMC ACD 3' WORKING CLEARANCE 3' W O R K I N G C L E A R A N C E E2 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : (9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 40 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 SCALE: SITE PLAN N 1/8" = 1'-0" (E) 30A NON-FUSED AC DISCONNECT 240V NEMA-3R MSP ACD LEGEND (E) 200A BUS NCF (E) 200A MAIN BREAKER SERVICE POINT & UTILITY METERING ACC (N) 200A ENPHASE IQ COMBINER 6C WITH WITH CONTROLLER BOARD & IQ GATEWAY GAS (E) GAS RISER (E) SOLAREDGE SE3800H-US (240V) INVERTERINV (N) 30A NON-FUSED AC DISCONNECT 240V NEMA-3RACD (N) ENPHASE IQ METER COLLAR EMC 1x(N) ENPHASE IQ BATTERY 10C ENERGY STORAGE SYSTEM, 240V NEMA-3R (LOCATED AT EXTERIOR WALL) ESS (E) 200A BUS NCF (E)200A MAIN BREAKER SERVICE POINT & UTILITY METERING (LOCATED AT EAST WALL) POINT OF CONNECTION 14 (E) SILFAB SLA-M 300 SOLAR MODULES EACH WITH AN (E) SOLAREDGE DC OPTIMIZER 11 1 3 N W R I G H T S T EX I S T I N G DR I V E W A Y GAS FR O N T O F RE S I D E N C E EXISTING HOUSE EX I S T I N G GA R A G E INV ESS ACD ACC MSP EMC ACD 2' - 7 " 16'-11" 22'-3" 58 ' - 1 0 " 100'-10" 59 ' 101'-1" 3' 3' 3' 3' E3 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : (9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 40 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 SCALE: PROPERTY PLAN N 3/32" = 1'-0" PROPERTY LINE FENCE LINE FENCE GATE EXISTING SHEDFENCE GATE 3 FEET PROPERTY SETBACK 3 FEET PROPERTY SETBACK 3 FEET PROPERTY SETBACK 3 FEET PROPERTY SETBACK EXISTING PATIO ENPHASE IQ BATTERY 10C 6" 6" 3'-2" 1' - 9 " 1'-9" ENPHASE IQ COMBINER 6C 3' 4"solar edge HD (E)SE INVERTER (E) ACD 30A WINDOW Gas (E)VENT EXISTING VENT EXISTING LAMP DOOR DOOR EXISTING VENT FENCE GATE SOUTH-WALL ELEVATION (EXTERIOR) (E) VENT (E) VENT (E) VENT (E) VENT (E) VENT (E) VENT WATER SPIGOT 1'-6" 3'-2" 9" NEW ENPHASE IQ METER COLLAR (E) CONDUIT PIPE WINDOW (E) VENT (E)CAMERA EXISTING 200A BUS EXISTING 200A MAIN BREAKER 120/240V 1ɸ 3W MAIN SERVICE PANEL & METER EAST WALL ELEVATION (EXTERIOR) ACD 30A 6" 3' - 5 " E4 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : ( 9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 4 0 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 SCALE: ELECTRICAL ELEVATION 1/4" = 1'-0" SCALE: ELECTRICAL ELEVATION 3/8" = 1'-0" ESS SHALL BE LOCATED NOT LESS THAN 3 FEET (914 MM) FROM DOORS AND WINDOWS DIRECTLY ENTERING THE DWELLING UNIT. SEMPER WILL COVER THESE VENTS BY FIRE PROOF LOUVER VENT COVER No. E 22012 FESSIOROD P NALREAENTEGGIUHN EG EERR ALELERICCT IASTRNATEFOLIOF C A MANDEIRHO IS TE AM Exp. 09/30/2 7 STAMPED 04/16/2026 E7.1 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : ( 9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 4 0 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 NOTES WIRE OCP FOR WIRES CONNECTED TO BREAKERS TO BE GREATER THAN THE SIZE OF THE BREAKER. EQUIPMENT TERMINALS ARE RATED AT 75°C. STRING AMPERAGE NOT TO EXCEED THE 75°C RATING OF THE WIRE THAT IS ATTACHED TO THE TERMINALS. NEW PV CONDUIT TO HIDDEN FROM VIEW. CONDUIT TO BE PAINTED TO MATCH THE EXISTING SURFACE. CONDUIT RUN TO BE DETERMINED BY INSTALLER THE FAULT CURRENT OF THE MOCPD CANNOT EXCEED AN AIC RATING OF 10KAIC. THE PV SYSTEM DISCONNECTING MEANS SHALL HAVE RATINGS SUFFICIENT FOR THE MAXIMUM CIRCUIT CURRENT, AVAILABLE FAULT CURRENT, AND VOLTAGE THAT IS AVAILABLE AT THE TERMINALS OF THE PV SYSTEM DISCONNECT. AIC RATINGS FOR ALL PROPOSED BREAKERS SHALL HAVE EQUAL OR GREATER AIC RATINGS OF THE EXISTING BREAKERS PER CEC 690.13 2% Avg. 7/8"MIN ASHRAE AMBIENT TEMPERATURE SPECS ° C ° C High Temp EXTREMEDISTANCE ABOVE ROOF NO TEMP ADDER PER 310.15(B)(2)33.6 1.6 UTILITY COMPANY: MSP VOLTAGE: MSP GROUND:SERV. TYPE: SERVICE INFO MSP PHASE: 1-PHASEOVERHEAD 120/240 (N) ROD SCE INTERCONNECTION METHOD PER 705.12(B)(2): WHERE TWO SOURCES, ONE A PRIMARY POWER SOURCE AND THE OTHER ANOTHER POWER SOURCE, ARE LOCATED AT OPPOSITE ENDS OF A BUSBAR THAT CONTAINS LOADS, THE SUM OF 125 PERCENT OF THE POWER SOURCE(S) OUTPUT CIRCUIT CURRENT AND THE RATING OF THE OVERCURRENT DEVICE PROTECTING THE BUSBAR SHALL NOT EXCEED 120 PERCENT OF THE AMPACITY OF THE BUSBAR. BUS BAR MAIN BREAKER MAX GENERATION POTENTIAL CEC 705.12(B)(2) FOR MSP ( 200 x 1.2 ) - 200 = 40 FOR EXISTING SOLAR SYSTEM: 705.13 ENERGY MANAGEMENT SYSTEM (EMS) CURRENT LIMITATION SETTING ON THIS PANEL = 200A EMS CONTROLLED CURRENT SETTING: 200A THE MAXIMUM OUTPUT CURRENT FROM THIS SYSTEM TOWARDS THE MAIN PANEL IS CONTROLLED ELECTRONICALLY. REFER TO MANUFACTURER'S INSTRUCTIONS FOR MORE INFORMATION AN EMS IN ACCORDANCE WITH 750.13 SHALL BE PERMITTED TO LIMIT CURRENT AND LOADING ON THE BUSBARS AND CONDUCTORS SUPPLIED BY THE OUTPUT OF ONE OR MORE INTERCONNECTED ELECTRIC POWER PRODUCTION OR ENERGY STORAGE SYSTEMS. STAMPED 04/16/2026 No. E 22012 FESSIOROD P NALREAENTEGGIUHN EG EERR ALELERICCT IASTRNATEFOLIOF C A MANDEIRHO IS TE AM Exp. 09/30/2 7 BACKFED BREAKERS IN THE MSP WILL BE SECURED WITH HOLD DOWN KITS. THIS WILL SATISFY THE REQUIREMENTS OF SECTION 408.36(D) GROUNDING ELECTRODE & AUXILLARY GROUNDING ELECTRODE AS NEEDED PER CEC 690.47 (6 FEET APART) L LL L GN D N LOADS (E) (OVERHEAD) (E)200A TOP FED MAIN SERVICE PANEL (E) 200A/2P (N) 60A/2P ME T E R # 2 2 2 0 1 2 - 7 8 2 3 5 4 + - CTRL (N) ENPHASE ENERGY INC. IQ BATTERY-10C-1P-NA [240V] [SI1-SB] + IQ COMBINER 6C (X-IQ-AM1-240-6C) [CRD-PCS NEM] THWN-2 3-#8 1-#8 GRND 3/4" EMT CONDUIT IQ PV1 IQ PV2 IQ PV3 IQ PV4 IQ B1 IQ EVC 60A IQ PVA IQ B1 PRE-INSTALLED HOLD-DOWN KIT PRE-INSTALLED 60A BREAKER DER CENTRE N G (N) 200A ENPHASE IQ COMBINER 6C NEMA-3R (X-IQ-AM1-240-6C) BACFEED LUGS WITH DER RELAY A2 A1 BACKFEED LUGS CTRL BATTERY CTRL HEADER 1 BATTERY CTRL HEADER 2 IQ COLLAR CTRL HEADER 3 SPARE CTRL HEADER 4 EVSE CT 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 LCB LOAD CONTROLLER BREAKER LOAD CONTROLLER B1 RSD INTEGRATED COMBINER CONTROLLER BOARD (CCB) AND IQ GATEWAY 20A 40A B2 PV4 PV3 EVC PV2 PV1 TO ENPHASE IQ METER COLLAR (N) 30A VISIBLY OPEN, LOCKABLE, AC DISCONNECT EATON DG221URB 240V NEMA-3R G THWN-2 1-#12 3/4" EMT CONDUIT EXISTING SOLAR 4.200kW DC, 240V (14)SILFAB SLA-M 300 MODULES (1)SOLAREDGE SE3800H-US (240V) INVERTER (N) ENPHASE IQ METER COLLAR MC-200-011-V01 TO ENPHASE COMBINER 6C THWN-2 4-#18 3/4" EMT CONDUIT 1 STRING OF MODULES O J-BOX G EACH WITH AN (E) SE DC OPTIMIZER 14 (E) PV WIRE 2-#12 1-#6 GRND OPEN AIR (E) THWN-2 2-#10 1-#8 GRND 3/4" EMT CONDUIT AC DC (E) SOLAREDGE SE3800H-US (240V) INVERTER LISTED FOR RAPID SHUTDOWN, AFCI & UL1741SA GN D N (E) 30A VISIBLY OPEN, LOCKABLE, AC DISCONNECT 240V NEMA-3R G EATON DG221URB PRODUCER'S STORAGE DEVICE(S) WILL NOT CAUSE THE HOST LOAD EXCEED ITS NORMAL PEAK DEMAND. NORMAL PEAK DEMAND IS DEFINED AS THE HIGHEST AMOUNT OF POWER REQUIRED FROM THE DISTRIBUTION SYSTEM BY PRODUCER'S COMPLETE FACILITIES WITHOUT THE INFLUENCE OR USE OF ENERGY STORAGE DEVICES. THE ESS CIRCUIT BREAKER SHALL BE SECURED IN PLACE BY AN ADDITIONAL FASTENER PER SECTION 408.36(D). THE BREAKER AND FASTENER SHALL BE MADE BY THE SAME MANUFACTURER (E) THWN-2 3-#10 1-#8 GRND 3/4" EMT CONDUIT THWN-2 3-#6 1-#8 GRND 3/4" EMT CONDUIT E7 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : ( 9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 4 0 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 2% Avg. 7/8"MIN ASHRAE AMBIENT TEMPERATURE SPECS ° C ° C High Temp EXTREMEDISTANCE ABOVE ROOF NO TEMP ADDER PER 310.15(B)(2)33.6 1.6 UTILITY COMPANY: MSP VOLTAGE: MSP GROUND:SERV. TYPE: SERVICE INFO MSP PHASE: 1-PHASEOVERHEAD 120/240 (N) ROD SCE THE FAULT CURRENT OF THE MOCPD CANNOT EXCEED AN AIC RATING OF 10KAIC. THE PV SYSTEM DISCONNECTING MEANS SHALL HAVE RATINGS SUFFICIENT FOR THE MAXIMUM CIRCUIT CURRENT, AVAILABLE FAULT CURRENT, AND VOLTAGE THAT IS AVAILABLE AT THE TERMINALS OF THE PV SYSTEM DISCONNECT. AIC RATINGS FOR ALL PROPOSED BREAKERS SHALL HAVE EQUAL OR GREATER AIC RATINGS OF THE EXISTING BREAKERS PER CEC 690.13 BATTERY DISCONNECTING MEANS PV DISCONNECTING MEANS PV & BATTERY DISCONNECTING MEANS BATTERY DISCONNECTING MEANS No. E 22012 FESSIOROD P NALREAENTEGGIUHN EG EERR ALELERICCT IASTRNATEFOLIOF CA MANDEIRHO IS TE AM Exp. 09/30/2 7 STAMPED 04/16/2026 BATTERY INSTALL DIAGRAM E8.1 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : (9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 40 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 BATTERY INSTALL DIAGRAM E8.2 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : (9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 40 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 BATTERY INSTALL DIAGRAM E8.3 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : (9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 40 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 ELECTRICAL NOTES: E8 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : ( 9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 4 0 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 1) ALL MODULES WILL BE GROUNDED IN ACCORDANCE WITH CODE AND THE MANUFACTURER’S INSTALLATION INSTRUCTIONS. 2) ALL PV EQUIPMENT SHALL BE LISTED BY A RECOGNIZED TESTED LAB. 3) NOTIFY SERVING UTILITY BEFORE ACTIVATION OF PV SYSTEM. 4) WHEN A BACKFED BREAKER IS THE METHOD OF UTILITY INTERCONNECTION, BREAKER SHALL NOT READ LINE AND LOAD. 5) WHEN A BACKFED BREAKER IS THE METHOD OF UTILITY INTERCONNECTION, THE BREAKER SHALL BE INSTALLED AT THE OPPOSITE END OF THE BUS BAR OF THE MAIN BREAKER. 6) WORKING SPACE FOR EQUIPMENT OPERATING AT 1000 VOLTS, NOMINAL, OR LESS TO GROUND AND LIKELY TO REQUIRE EXAMINATION, ADJUSTMENT, SERVICING, OR MAINTENANCE WHILE ENERGIZED SHALL COMPLY WITH [CEC 110.26(A)] 7) ALL EXTERIOR CONDUITS, FITTINGS AND BOXES SHALL BE RAIN-TIGHT AND APPROVED FOR USE IN WET LOCATIONS PER [CEC 314.15]. 8) ALL METALLIC RACEWAYS AND EQUIPMENT SHALL BE BONDED AND ELECTRICALLY CONTINUOUS. 9) PV EQUIPMENT, SYSTEMS AND ALL ASSOCIATED WIRING AND INTERCONNECTIONS SHALL ONLY BE INSTALLED BY QUALIFIED PERSONS. [CEC 690.4 (C)]. 10) ADEQUATE SPACING MUST BE MAINTAINED BETWEEN ANY PLUMBING SEWER VENTS EXTENDING THROUGH THE ROOF AND THE UNDERSIDE OF THE PHOTOVOLTAIC PANELS (6" MINIMUM RECOMMENDED). STAMPED 04/16/2026 No. E 22012 FESSIOROD P NALREAENTEGGIUHN EG EERR ALELERICCT IASTRNATEFOLIOF C A MANDEIRHO IS TE AM Exp. 09/30/2 7 N INV ESS ACD ACC MSP ACD PLACARD RIVETED TO THE MAIN SERVICE PANEL E9 SHEET NUMBER: SE M P E R S O L A R I S 18 0 5 J O H N T O W E R S A V E EL C A J O N , C A 9 2 0 2 0 C- 1 0 L I C # 9 7 8 1 5 2 Li c . H o l d e r D i g i t a l l y S t a m p e d PR O J E C T F O R : PR O P O S E D Jo h n A l m o n d JU S T I N A G E I S E R SA N T A A N A C A 9 2 7 0 1 11 1 3 N W R I G H T S T PH O N E : ( 9 4 9 ) 9 1 0 - 9 6 6 2 AP N : 4 0 0 - 2 8 4 - 0 3 DRAWN BY: DATE: PROJECT #: ADIRAIN 4/16/2026 115892 EN E R G Y S T O R A G E SY S T E M S I Z E : 10 . 0 k W h E S S MA I N L I N E : 6 1 9 - 3 5 7 - 4 1 4 2 1113 N WRIGHT ST , SANTA ANA CA 92701 CAUTION MULTIPLE SOURCES OF POWER BATTERY SUB PANEL (IF USED) 16 5 BATTERY UNIT BATTERY EDS BATTERY MID 17 18 18 BATTERY SUB PANEL (IF USED) 16 5 BATTERY UNIT BATTERY EDS BATTERY MID 17 18 18 INFORMATIONAL NOTE: ANSI Z535.4-2023 PROVIDES GUIDELINES FOR THE DESIGN OF SAFETY SIGNS AND LABELS FOR APPLICATION TO PRODUCTS. A PHENOLIC PLAQUE WITH CONTRASTING COLORS BETWEEN THE TEXT AND BACKGROUND WOULD MEET THE INTENT OF THE CODE FOR PERMANENCY. NO TYPE SIZE IS SPECIFIED, BUT 20A POINT (3/8") SHOULD BE CONSIDERED THE MINIMUM. ALL THE CEC REQUIRED WARNING SIGNS, MARKINGS, AND LABELS SHALL BE POSTED ON EQUIPMENT AND DISCONNECTS PRIOR TO ANY INSPECTIONS TO BE PERFORMED BY THE BUILDING DEPARTMENT INSPECTOR. YOU ARE HERE IN CASE OF EMERGENCY CALL 911 FOR SERVICE CALL SEMPER HOME 1-800-216-0120 FRONT OF RESIDENCENOT ENERGIZED FULL RAPID SHUTDOWN INVERTER BATTERY STORAGE PV DISCONNECT PV & BATTERY STORAGE DISCONNECT SERVICE POINT & UTILITY METERING & PV & BATTERY DISCONNECT PV & BATTERY STORAGE DISCONNECT SOLAR ARRAY ADDITIONAL BATTERY PLACARDS WARNING THIS EQUIPMENT FED BY MULTIPLE SOURCES. TOTAL RATING OF ALL OVERCURRENT DEVICES EXCLUDING MAIN SUPPLY OVERCURRENT DEVICE, SHALL NOT EXCEED AMPACITY OF BUSBAR LABEL LOCATIONS: -BATTERY SUBPANEL -SUB PANELS 16 WARNING INVERTER OUTPUT CONNNECTION DO NOT RELOCATE THIS OVERCURRENT DEVICE LABEL LOCATIONS: -MAIN PANEL -SUB PANELS 5 CAUTION TRI POWER SOURCE SECOND SOURCE IS AC BATTERY THIRD SOURCE IS PHOTOVOLTAIC SYSTEM LABEL LOCATIONS: -SERVICE DISCONNECT -SUB PANELS 5 LABEL LOCATIONS: -BATTERIES -INVERTER 17 WARNING ELECTRIC SHOCK HAZARD IF A GROUND FAULT IS INDICATED, NORMALLY GROUNDED CONDUCTORS MAY BE UNGROUNDED AND ENERGIZED 1 OF 1 BATTERY ADDITIONAL BATTERY PLACARDS WARNING THIS EQUIPMENT FED BY MULTIPLE SOURCES. TOTAL RATING OF ALL OVERCURRENT DEVICES EXCLUDING MAIN SUPPLY OVERCURRENT DEVICE, SHALL NOT EXCEED AMPACITY OF BUSBAR LABEL LOCATIONS: -BATTERY SUBPANEL -SUB PANELS 16 WARNING INVERTER OUTPUT CONNNECTION DO NOT RELOCATE THIS OVERCURRENT DEVICE LABEL LOCATIONS: -MAIN PANEL -SUB PANELS 5 SECOND SOURCE IS AC BATTERY THIRD SOURCE IS PHOTOVOLTAIC SYSTEM LABEL LOCATIONS: -SERVICE DISCONNECT -SUB PANELS 5 LABEL LOCATIONS: -BATTERIES -INVERTER 17 WARNING ELECTRIC SHOCK HAZARD IF A GROUND FAULT IS INDICATED, NORMALLY GROUNDED CONDUCTORS MAY BE UNGROUNDED AND ENERGIZED 1 OF 1 BATTERY ENERGY STORAGE SYSTEM EMS CONTROLLED SETTING: _____ A200 PHOTOVOLTAIC POWER SOURCE OPERATING AC VOLTAGE: _____ V MAXIMUM OPERATING AC OUTPUT CURRENT: ______ AMPS (E) INVERTER AMPERAGE LABEL FOR MAIN SERVICE PANEL COVER NOMINAL ESS VOLTAGE: ___VAC OPERATING CURRENT: ___AAC LABEL FOR ESS BATTERY, QTY-1 240 240 PHOTOVOLTAIC POWER SOURCE OPERATING AC VOLTAGE: _____ V240 MAXIMUM OPERATING AC OUTPUT CURRENT: ______ AMPS (E) INVERTER + (N) ESS AMPERAGE LABEL FOR MAIN SERVICE PANEL COVER 16 46 30 240V 04/16/2026 Battery Disconnecting Means Nominal battery voltage: _______ Nominal available short-circuit current derived from the stationary battery system: _______ Date of calculation: ___________ 56A WARNING: THIS SENSOR IS PART OF ENERGY MANAGEMENT SYSTEM. DO NOT REMOVE. REPLACE ONLY WITH SAME TYPE AND RATING. COMBINERTHE MAXIMUM OUTPUT CURRENT FROM THIS SYSTEM TOWARDS THE MAIN PANEL IS CONTROLLED ELECTRONICALLY. REFER TO THE MANUFACTURER'S INSTRUCTIONS FOR MORE INFORMATION. STAMPED 04/16/2026 No. E 22012 FESSIOROD P NALREAENTEGGIUHN EG EERR ALELERICCT IASTRNATEFOLIOF C A MANDEIRHO IS TE AM Exp. 09/30/2 7 STRUCTURAL CALCULATIONS FOR JUSTIN GEISER (BATTERY) 1113 N WRIGHT ST SANTA ANA CA 92701 ENGINEER: BWU Consultants, Inc 1168 San Gabriel Blvd #N Rosemead, CA 91770 Announcement ASCE 7-22 is now available. 1113 N Wright St, Santa Ana, CA 92701, USA Latitude, Longitude: 33.7551289, -117.8463363 Date 4/17/2026, 8:58:45 AM Design Code Reference Document ASCE7-22 Risk Category II Site Class Default Type Value Description (Data) SS 1.48 The MCER spectral response acceleration at 0.2 seconds for Site Class BC, in units of g. S1 0.48 The MCER spectral response acceleration at 1 second for Site Class BC, in units of g. SMS 1.77 SMS = 1.5 x SDS, the Risk-Targeted Maximum Considered Earthquake (MCER) spectral response acceleration for short periods (of the two-period spectrum) and the user-specified Site Class. SM1 1.18 SM1 = 1.5 x SD1, the MCER spectral response acceleration for 1 second (of the two-period spectrum) and the user-specified Site Class. SDS 1.18 The design spectral response acceleration for short periods (of the two-period spectrum) and the user-specified Site Class, in units of g. SD1 0.79 The design spectral response acceleration for 1 second (of the two-period spectrum) and the user-specified Site Class, in units of g Type Value Description (Data Contd.) SDC D Seismic design category PGAM 0.66 PGAM, the Geometric-Mean Maximum Considered Earthquake (MCEG) peak ground acceleration for the user-specified Site Class, in units of g TS 0.669 TS = SD1/SDS, in seconds, for construction of the two-period design spectrum T0 0.134 T0 = 0.2 x TS, in seconds, for construction of the two-period design response spectrum TL 8 TL, the long-period transition period, in seconds, for construction of the two-period design response spectrum 4/17/26, 9:00 AM U.S. Seismic Design Maps https://www.seismicmaps.org 1/7 BWU Consultants, Inc. 1168 N. San Gabriel Blvd., #N Rosemead, CA. 91770 Tel: (626) 288-0708 Email: twengrs1168@gmail.com Date: SEISMIC DESIGN 2025 CALIFORNIA BUILDING CODE CITY OF L.A. BUILDING CODE COUNTY OF L.A. BUILDING CODE SDS = SMS = FASS =(1.2)*(1.480)=1.184 SD1 = SM1 = FVS1 =(1.5)*(0.480)=0.480 LATITUDE: 33.7551289 PROJECT LOCATION: 1113 N Wright St, Santa Ana, CA 92701, USA LONGITUDE: -117.8463363 SITE CLASS: D (Class D is selected without Soils Report) 2 3 2 3 2 3 2 3 2 3 2 3 BWU Consultants, Inc. 1168 N. San Gabriel Blvd., #N Rosemead, CA. 91770 Tel: (626) 288-0708 Email: twengrs1168@gmail.com Date: ASCE 7-22 FP =0.3 SDS IP WP 1.6 SDS IP WP CS =0.7 FP CSW =0.7 x 0.66 W = 0.462 / 1.4 = 0.33 W AND SECTION 13.3 OF ASCE 7-16 0.4 AP SDS ( RP / IP ) AP = 1.0 RP = 2.5 z/h = 1.0 FP = ENCHARGE10 WALL MOUNTED BRACKET WT = 341 LB EXISTING 2X4 STUD Ht= 8'-0" Pall = 600 LB VERTICAL LOAD WIND SEISMIC ∇= 0.57 x 341 LB 194.4 LB / 3-1/4"Ø screws = 65 LB 225 LB OK 210 LB OK65 LB < (3-1/4"Ø x 1 1/2 " MIN. EMBED) = 24.92 PSF x 24"x32"/ 12"x12" = 133 LB C=T: 133x6"/6" = 133 LB / 3 LAG SCREWS = 44.3 LB < 225 LB WITHDRAW OK 341 LB / 3 SUPPORTS = 113.7 LB / LAG SCREW < 210 LB OK SEISMIC DEMAND ON NONSTRUCTURAL COMPONENTS (ELEMENTS) 0.4 x 1.0 x 1.18 2.5 FP =WP (1+2 z/h) x (1+2x1) WP =0.57 WP 𝛻 𝛻 CITY OF SANTA A,NA Planning and Building Pgdncy ALLOWABLE LOAD TIMBER COLUMNS SIZE L E N 6 T H OF C0-LUMW I FEET P .. 4 5 6 7 ; 8 9 10 11 12 13 14 15 16 7 ]8 19 20 22 /® 48 56 64 72 8A BB 96 32 40 2x4 2.4., 1.5 1.1 . B .6 D te: 2x6 3.8 2.4 1.7 1.2 :8 - 2x8 5.1 3.2 2.2 1.6 1.2 1.0 .B L/D = 5D ALL VALUES IN THOUSAND 2x1-D 6.5 4.1 2.9 2.1 1.61.2 1:D .8 .7 OF POUNDS 2x12 5.0 3.5 2.6 1.9 1.5 1.2 1.0 .B .7.9 ID, 19.2 24.0 28.6 33.6 38.4 43.2 48.D 52.8 57.6 62.4 67.2 72.0 3x3 8.1 5.1 3:6 2:6 '2.0. .1,:6 .:1.5 • 1.0 .9 , 4 1:3 7.2 5.0 3.7 2:8 2.2 1.8 1.5 1.2 1.0 z6 7.5 11.3, 7.9 5.8 4.4 3.5 2.8 2.3 7.9 1.6 1.4 3x8 3:2 14.8 10.3 7.6 5.8 4.6 .B.7 3.0 2.5 2.2 1.9 1.6 3x10 :019.1 3..3 9.8 7:5 5.9. 4.8 3.9 3.3 2.8 2.4 2.1 3x12 6.4 23.2 1b..2 11.9. 9.] 7,2 5.8 4:B .4.0 3.4 3.0 "2.6 L/D 17.2 20.6 24.D 27.4 30.8 34.3 57:7' 1.2 44.6 48.0 51.4 54.9 5B.3 61.7 65.2 68.6 75.4 4x4 19.6 13.8 10.6 7:8. 6.2 4.9 4.1 3.4 2.9 2.5 2.2 1.9 1.7 1.5 1.3 1:2 1.0 4x6, 31.2 21.8 16.1 12.6 9.7- 7.8 6.5 5.4 4.6 4.0 3.5 3.0 2.8 2.4 2.1 1.9 1.6 41.7 29.2 21.4 16.4. 13.0 10.4 8.7 7.2 5.2 5.3 4.fi 4.0 3.6 3.2 2.9 2.6 2.1 WO 53.0 39.1 27.8 20.9 6.5113.3 11.1 9.2 7.8 6.8 5.9 5.1 4.6 4.0 3.7 3.3 2.7 4x12 64.0 44.6 32:8 25.2 19.8 16.1 13.3 11.2 9.5 8.2 7.1 6.1 5.5 4.9 4.4 4.0 3.3 4N-14 75.0 3B.8 29. 6 23.2 18.8 j 15.6 13.0 11.1 9.6 8.4 7.2 6.5 5..7 5.2 4.7 s".9 _ L%D g -.. 10.9 .52..4. 13.1 15.3 17.5 1-9.6 21.8 24.0 26.2, 28.4 32:5 32.8 35.0 37.1 39.3 41.5 43.6 45. 6x5 84.4 62.0 47.4 37.8 30..5 25.2 2] .1: 18.0 15.5 13.5 11.9 10.5 9.41 8.4 1.6 6.9 6x8j 115 84..5 64.8 51.5 41.6 34.4 28.8124.5 21.2 18.4 16.2 14.3 12.8-11.5 10.4 9.4 . 6x. 146 107 82..0 65.5 52.8 43.5 36.6131.2 26.8 23,4 20.6 18. 2 16.3 14.6 13.2 !11.9 99A 79.2 64.0 52.8 44.3 37.6 32.4 28.2 24.9 22.0 19.5 17.65 6 12 f 61.�51 44.2 38.0 33.1 29.2 25.8 23.1 20.7.18_ 4�16_9 Gxl4 116 92.6 75.0 133 106 86.2 71.0 159.6 50.8 43.7 38.1F33.5129.6 26.5 23.8 21.5'15.5' 6x16 24.0 25.6'27.2 28,8 30.432.0;33.6' 9.6 11.2 12.8 14.4 16.0 17.6 19.2 20.5 22.4 L/D 156 107 99.3 83.3 69.6 59.4 51.6 44.6;39.4;34.9131.1 27.9 25.1.22.8 8z8 - 105 ;88.5 75.5 65.6 57.0150.2.44.4 '39. 5 35.4 31,B 29.0 126 8x10 1107 91.3 79.5 69.0160.6!53.6;47.8142.5�38.5 35.1 8 xl2 19,0:20.2j21.5I22.7 '74.0 25.3 26.5 =L/D- .. L/D = 10 110 '103jB9.1 80.3 71;8 64.5i59. IJnx1 131 113 101 91.0 81.6 74.5 :- 16.7117.7 16.6 1J1.7 20.8121.5: L/D 254 201 184 164 146 132 12xI M v anning anci bul Table 11K LAG SCREWS: Design Values (Z) for Single Shear (two member) Connections'•,2r3 FOR PE M T I55 A : , with 1/4"ASTM A3.6 steel side plate, or ASTM A653, Grade 33 steel side plate (for ts<1/4") Master Date:N N ELL' m l0 a l0 LL o N N m 11 �� aN U N _m ❑ C m cU}� a E w m m 3 s ma' g E iL N u`. N G.Z N o v L Y r N ro O v1 v N �, V 5 V LLFF a LL v chi o r��7 3 c E E r�*� m cmi N w E c�'1 m vt m om oxo o �o �05� o� �a �aVima �ma°N'v �o m♦- J ('J� r7�tn C7❑ C70? C7❑2 C92 (7N U' K ° U' W CO33 U' Z is D ZII Zl ZII Zl Al Zl ZII Zl Zll Zl ZII Zl ZII Zl ZII Zl ZII Zl ZII Zl in. in. lbs. lbs. lbs, lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs, lbs. 0.075 (14 gage) 1/4 5116 170 130 220 160 160 120 200 140 150 110 190 130 150 110 190 130 150 100 190 130 140 1D0 180 120 140 100 180 120 130 90 170 110 130 90 170 110 130 90 160 100 3/8 220 160 200 140 200 130 190 130 190 120 180 120 180 120 170 110 170 100 170 100 0.105 114 180 140 170, 130 160. 120 160 120 16.0 110 150 110 150 110 140 100 140 100 140 90 (12 gage) 5/16 230 170 210 150 200 140 200 14D 190 130 190 130 190 120 180 110 170 110 170 110 3/8 230 160 210 140 1 200 140 200 130 200 130 190 120 190 120 1 180 110 180 110 170 110 0.120 1/4 190 150 180 130 170 120 170 120 160 120 160 110 160 110 150 100 150 100 140 100 (11 gage) 5/16 230 170 210 150 210 140 200 140 200 140 190 130 190 130 180 120 180 120 180 110 3/8 240 170 220 150 210 140 210 140 200 130 200 130 190 120 180 110 180 110 180 110 0.134 1/4 200 150 180 140 180 130 170 130 170 120 160 120 160 110 150 110 150 100 150 100 (10 gage) 5/16 240 180 220 160 210 150 210 140 200 140 200 130 200 130 190 120 180 120 180 120 3/8 240 170 220 150 220 140 1 210 140 210 140 200 130 200 130 190 120 190 120 180 110 0.179 114 220 170 210 160 200 150 200 140 190 140 190 130 190 130 180 120 170 120 170 120 (7 gage) 5/16 260 190 240 170 230 160 230 160 230 150 220 150 220 150 210 130 200 130 200 130 318 270 190 250 170 40, 16Q 240 160 230 150 220 140 220 140 210 130 210 130 200 130 114 240 180 220 160 21 's^ 210 150 200 140 190 140 190 130 180 120 180 120 0.239 i80 920 (3 gage) 5/16 300 220 2B0 19 ' 270 60 260 180 260 170 250 160 250 160 230 150 230 150 230 140 3/B 310 220 280 190 270 180 270 180 260 170 250 160 250 160 240 140 230 140 230 140 7l1fi �20 - 290 =390 g .380 240 7A 40 60 23fl s50 226 50 r 22b 3D 200 330 2{TO 320 196 12= S10 340 A70 x-060��. 290 180 440 270. A30 rZfiDr 3 42D = 26D a 00 r 24D: AD0 _ 230 390 230' J&4,4at1 i i3Q0 _z 730_ 430 i680 400 680�4pDy60 �970s r 380 fp t s 37_fN r x r t &3ff r u r-- 64Gv 33D 59Q __ v " 3�30 58D 320 •� j 3/4 1110 670 1020 590 980 560 550 950 530 920 500 910 500 860 450 850 450 840 440 7/8 1510 880 1390 780 1330 730 1320 710 1280 690 1250 650 1230 650 1170 590 1160 590 1140 570 1 1940 1100 1 1780 960 1 1710 910 1 1700 890 1650 860 160D 820 1590 810 1500 740 1480 730 1460 710 114 1/4 240 180 220 160 210 150 210 150 200 140 200 140 190 130 180 120 180 120 150 120 5/16 310 220 280 200 270 180 270 180 260 170 250 170 250 160 230 150 230 15D 230 140 318 320 220 290 190 280 180 270 180 270 .170 260 160 25D 160 240 150 240 140 230 140 7✓1b 480 �320 14fl 28fl 420.-. 27U z 420 r 26© 419 3�0 240 37D R20. 36D, 210 360 210 F/2 560 396 ri40 3{0 520 - 320 51f1 �20 ti25D 3D0` 310 y 49� 290� �390-36 4$029D` �{5D 70 { 4D 260 }4D ` 260•i FB 350.0 3 ]50 �fi�0 _780, ..,474 r 440 730 r a00 j1050 ?720 ._SD.,37DD =104 £93 :L40060 37U; ,;360 6di, . 350 3/4 1200 730 1100 640 1060 600� 590 1020 570 990 540 980 530 930 490 920 480 900 470 718 16D0 930 1470 820 1410 770 1400 750 1360 720 1320 690 1310 680 1240 630 1220 620 1200 600 1 2040 1150 1870 1000 1800 950 1780 930 1730 900 1680 850 1660 640 1570 770 1550 760 1530 740 -I. I aoulatea lateral design values (Z) shall be multiplied by all applicable adjustment factors (see Table 10.3.1). 2. Tabulated lateral design values (Z) are for "reduced body diameter" lag screws (see Appendix L) inserted in side grain with screw axis perpendicular to wood fibers; minimum screw penetration, p, into the main member equal to BD; dowel bearing strengths (Fe) of 61,850 psi for ASTM A653, Grade 33 steel and 87,000 psi for ASTM A36 steel and screw bending yield strengths (Fyb): Fyb = 70,000 psi for D =1/4"; Fyb = 60,000 psi for D = 5/16'; Fro = 45.000 psi for D >_ 3/8" 3. When 4D_<p<8D, tabulated lateral design values (Z) shall be mulfiplied by p/8D. AMERICAN WOOD COUNCIL nts ..5, be ice -o- on Le- i. Approved Table 12.2A Lag Screw Reference Withdrawal Design Values, Wi R PEROT ISSUANCE Tabulated withdrawal design values M are in pounds per inch of thread penetration into si le grain of wood member. Length of thread penetration in main member shall not include the length of the to er (@relV.2.1.1). Specific Date: Gravity, Lag Screw Diameter, D GZ 1/4" 5116" 3/8" 7/16" 1/2" 5/8" 3/4" 7/8" 1" 1-1/8" 1-1/4" 0.73 397 469 538 604 668 789 905 1016 1123 1226 1327 0.71 381 450 516 579 640 757 868 974 1077 1176 1273 0.68 357 422 484 543 600 709 813 913 1009 1103 1193 0.67 349 413 473 531 587 694 796 893 987 1078 1167 0.58 281 332 381 428 473 559 641 719 795 869 940 0.55 2 0— 307 352 395 437 516 592 664 734 802 868 0.51 274 314 353 390 461 528 593 656 716 775 ,0.50 ;z--4?V5266 305 342 378 447 _ 513 576 636 695 �752 0.49 �18 258 296 332 367 434 498 559 617 674 730 0.47 205 242 278 312 345 408 467 525 580 634 686 0.46 199 235 269 302 334 395 453 508 562 613 664 0.44 186 220 252 283 312 369 423 475 525 574 621 0.43 179 212 243 273 302 357 409 459 508 554 600 0.42 173 205 235 264 291 344 395 443 490 535 579 0.41 167 198 226 254 281- 332 381 428 473 516 559 p -0.40 161 190 218 245 271 320 367 412 455 497 538 C 0.39 155 183 210 236 261 308 353 397 438 479 518 m 0.38 149 176 202 227 251 296 340 381 422 461 498 0.37 143. 169 194 218 241 285 326 367 405 443 479 0.36 137 163 186 209 231 273 313 352 389 425 460 M 0.35 132 156 179 200 222 262 300 337 373 407 441 a cn 0.31 110 130 149 1 167 1 185 1 218 250 1 281 1 311 1 339 367 -1 m 1. Tabulated withdrawal design values, W, for lag screw connections shall be multiplied by all applicable adjustment factors (see Table 11.3.1). m 2. Specific gravity, G, shall be determined in accordance with Table 123.3A. rM N 12.2.3.2 For calculation of the fastener reference withdrawal design value in pounds, the unit reference withdrawal design value in lbs/in. of fastener penetra- tion from 12.2.3.1 shall be multiplied by the length of fastener penetration, p,, into the wood member.. 12.2.3.3 The reference withdrawal design value, in lbs/in. of penetration, for a single post -frame ring shank nail driven in the side grain of the main member, with the nail axis perpendicular to the wood fibers, shall be determined from Table 12.2D or Equation 12.2-4, with- in the range of specific gravities and nail diameters giv- en in Table 12.2D. Reference withdrawal design values, W, shall be multiplied by all applicable adjustment fac- tors (see Table 11.3.1) to obtain adjusted withdrawal design values, W'. W = 1800 G2 D (12.2-4) 12.2.3.4 For calculation of the fastener reference withdrawal design value in pounds, the unit reference withdrawal design value in Ibs/in. of ring shank pene- tration from 12.2.3.3 shall be multiplied by the length of ring shank penetration, p,, into the wood member. 12.2.3.5 Nails and spikes shall not be loaded in withdrawal from end grain of wood (C,g 0.0). 12.2.3.6 Nails, and spikes shall not be loaded in withdrawal from end -grain of laminations in cross - laminated timber (C,g 0.0). 12.2.4 Drift Bolts and Drift Pins Reference withdrawal design values, W, for con- nections using drift bolt and drift pin connections shall be determined in accordance with 11.1.1.3. AMERICAN WOOD COUNCIL ! 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"# $ ! "# % ! "# #& ' ( #)*% + , -.'##/)/'0 #' 1'2#2/'#3'2" 4 567898:; <=>6 <69?@8A>8:; -.'##/)/'0 # % 2#2/ B -.'##/)/'2 # C 2#2/ B -.'##/)/'" # 2#23 -.'##/)/'0 #' 1'2#2/'#3'2" Components of the Enphase Energy System IQ Microinverters IQ Series Microinverters pack more power into less space than other rooftop solar systems and make rooftop solar more productive, reliable, smart, and safe. IQ Meter Collar i' IQ Meter Collar enables full home backup with IQ Battery 10C, Enphase PV, and IQ Combiner 6C. Revision history CITY OF SAW. ANA Planning and Building Agency Approved FOR PERMIT ISSUANCE — IQ Combiner 6C DSH-00565-6.0 July 2025 Added the domestic SKUs. Date: IQ Combiner 6C consolidates DSH-00565-5.0 July 2025 Updated the description of the "Product details" section. interconnection equipment into a Added a note to the total capacity in the "Battery" section. single enclosure and streamlines IQ Series Microinverters and Updated the peak current. IQ Battery 10C installation Updated the discharging power temperature range. by providing a consistent, pre - wired solution for residential Added the footnote in the altitude data. applications. DSH-00565-4.0 May 2025 Two additional SKUs were added to "Optional accessories and replacement parts." Updated the clearance dimensions from 6" to 4" in the product dimensions image. DSH-00565-3.0 March 2025 Editorial updates. DSH-00565-2.0 February 2025 Updated the specifications for order code details. DSH-00565-1.0 November 2024 Preliminary release. IQ Battery 10C accessories f IQ Battery 10C Lifting Handles are reusable and ease y the installation process. The 11 IQ Battery 10C Pedestal Mount enables floor mounting of the IQ Battery 10C. DSH-00565-6.0-EN-2025-07-31 DSH-00565-6.0-EN-2025-07-31 CITY OF SANS. ANA Planning and Building ency Em ENPHASE. IQ Meter Collar IQ Meter Collar is a meter socket adapter with an integrated microgrid interconnection device (MID) and energy meter. It is installed on an ANSI C12 Form 2S meter socket. IQ Meter Collar is rated for 200 A continuous current. It can be installed either at the service entrance between an ANSI C12 Form 2S utility meter and the meter socket or on the load side of the utility service on a separate meter socket pan. Eta us Intertek 5031589 Nominal grid supply Nominal frequency Nominal power consumption Overvoltage category Integrated consumption meter Maximum continuous current rating Maximum short-circuit current withstand Maximum overcurrent protection device Weight Meter and meter socket interface 120/240 VAC/180°, split -phase 60 Hz 3.8 W Category IV (service entrance -rated) ±0.5% accurate NORTH AMERICA ® Easy to install Lightweight and simple to install Lowers the cost of whole home backup Remote commissioning saves additional truck roll GRobust and reliable Thermal management minimizes 200 A use of internal fan Integrated AC -DC power supply closes MID to restore power to 22 kA the home when the utility grid is available, even if battery energy is exhausted 200 A 15-year product warranty 3.6 lb (1.63 kg) ANSI Form 2S, 200 A, ringless, or ring type @ Smart grid -ready Complies with advanced grid support, voltage, and frequency ride -through requirements Supports remote firmware updates to changing grid requirements Configurable at commissioning to comply with applicable grid interconnection parameters Meets CA Rule 21(UL 1741-SA), IEEE 1547:2018 (UL 1741-SB), Puerto Rico Electric Power Authority (PREPA), and Hawaiian Electric Industries (HEI) SRD V2.0 grid profiles Order code IQ Meter Collar Seal ring Plastic bag Quick install guide (QIG) Accessories kit Blank cover plate Nominal grid supply Nominal frequency Nominal power consumption Power consumption Overvoltage category Integrated consumption meter Maximum continuous current rating Maximum short-circuit current withstand' Maximum overcurrent protection device Dimensions (L x W x D) Weight Meter and meter socket interface Cooling Ambient temperature range Enclosure environmental rating Maximum altitude Safety Emissions Grid Power control system (PCS) MC-200-011-Vol I � FOR PERMIT ISSUANCE Meter collar adapter with microgrid interconnect d \#ft%f& ID: Seal ring to prevent tampering or unauthorized removal of t iili�i watt-hour meter Plastic bag for installers to hang the IQ Meter Collar next to the utility watt-hour meter IQ Meter Collar quick install guide One control connector; one junction box sub -assembly; two cable glands,1/2" NPT (national pipe taper thread) One blank cover plate attached in front of the IQ Meter Collar 120/240 VAC/180°, split -phase 60 Hz 3.8 W 2.5 W to 5.8 W Category IV (service entrance -rated) ±0.5% accurate 200 A 22 kA 200 A 6.9inx8.1inx5.0in(175mmx206mmx128mm) 3.6 Ib (1.63 kg) ANSI Form 2S, 200 A, ringless, or ring type Forced convection -cooled -40°F to 122°F (-40°C to 50°C) Indoor/Outdoor, NEMA type 3R 8,200 ft. (2,500 m) UL 414 CFR 47 Part 15B UL 1741 SA/SB (IEEE 1547:2018), multi -mode Current sensor for a power control system under UL 3141 © 2025 Enphase Energy. All rights reserved. Enphase, the a and CC logos. 10. and certain other marks listed at httos://enohase.com/trademark-usaoe-auidelines are trademarks of Enphase Energy, Inc. in the U.S. and other countries. Data subject to change. DSH-00468-4.0-EN-2025-07-21 The short-circuit current is limited by an external overcurrent protection device. DSH-00468-4.0-EN-2025-07-21 Control connector 4-wire signaling with 24 VDC power supply between system components System components Manual override lever Manually sets MID relay state. Pull to open the MID relay, push to close the MID relay Short press (7-10 seconds): Disables the firmware control of MID, toggle again to enable firmware control of MID Push button Long press (>15 seconds): Hard reset of the unit. The relay state does not change IQ System Controller 3M The relay LED and the control LED blink simultaneously for 6 seconds, indicating a successful hard reset. 2 It connects the home to grid power, IQ Battery 5P, IQ Combiner RELAY LED CONTROL LED STATE 5/5C, and PV. In the event of a grid RED RED MID closed failure, it works seamlessly with the IQ Meter Collar to transition the Blinking (1 second ON,1 second MID locked closed, system from grid power to backup RED OFF) firmware control disabled power. RED OFF MID closed, error OFF RED MID open Blinking (1 second ON,1 second MID locked open, firmware Light -emitting diodes OFF OFF) control disabled Fast blinking (0.25 Fast blinking (0.25 seconds seconds ON, 0.25 Hard reset successful ON, 0.25 seconds OFF) IQ Combiner 6C seconds OFF) OFF OFF No supply s Consolidates PV, battery, and EVSE interconnection into a single Fast blinking (0.25 seconds enclosure. Provides 60 A load OFF ON, 0.25 seconds OFF) MID open, error control. Works seamlessly with IQ Meter Collar to transition the Slow blinking (1 second ON, 3 system from grid power to backup OFF seconds OFF) MID open, grid present power in the event of a grid failure. ACC-MC-200 One junction box assembly including two cable glands, one control connector, one plastic bag, and one seal ring JC-MC-200 Jumper cover suitable for up to 200 A meter socket MP-MC-200 200 A ringless meter socket CTRL-SC3-NA-01 Control cable, 500 ft. spool,18/4 TC-ER Limited warranty 15 years IQ Gateway ENV2-IQ-AM1-240, ENV-IQ-AM1-240 Communications Kit COMMS-KIT-02 Microinverters I08, IQ7, IQ6 Series Microinverters IQ Battery 5P (IQBATTERY-5P-IP-NA), IQ Combiner 5/5C (X-IQ-AM1-240-5, Enphase Energy System 3.0 X-IQ-AMI-5C), IQ System Controller 3M (SC200D111CMC1US01) Enphase Energy System 4.0 IQ Battery 10C (IQBATTERY-10C-1P-NA), IQ Battery 10CS (IQBATTERY-I0CS-1P- NA), and IQ Combiner 6C (X-IQ-AM1-240-6C) Third -party inverters and legacy Enphase Supported with fourth -generation Enphase Energy System microinverters Third -generation Enphase Energy System. 3 Fourth -generation Enphase Energy System. CITY OF SANTA ANA Planning and Building Agency Approved FOR PERMIT ISSUANCE Master ID IQ Battery 5P Date: 2 Fully integrated 5 kWh AC Battery system. Includes six field -replaceable IQ8D-BAT Microinverters. IQ Battery 10C/10CS 3 Fully integrated 10 kWh AC 'ENIW Battery system with neutral forming capability. Works with IQ Combiner 6C. DSH-00468-4.0-EN-2025-07-21 DSH-00468-4.0-EN-2025-07-21 Revision history DSH-00468-4.0 July 2025 Added the "Power consumption" parameter in the "Electrical specifications" section. DSH-00468-3.0 June 2025 Updated "Electrical' and 'Interfaces" sections. DSH-00468-2.0 February 2025 Updated the cover page and specifications. DSH-00468-1.0 September 2024 Preliminary release. CITY OF SANTA ANA Planning and Building Agency Approved FOR PERMIT ISSUANCE Master ID: Date: DSH-00468-4.0-EN-2025-07-21 CITY OF SAWA. ANA Planning and Building ency Em ENPHASE® IQ Battery 10C The IQ Battery 10C all -in -one AC -coupled system is compact, powerful, reliable, and safe. It has a total usable capacity' of 10.0 kWh and includes four embedded, grid -forming microinverters with a 7.08 kVA continuous power rating. It provides backup capability, and installers can quickly design the right system size to meet the customer's needs. Rated (continuous) output power Rated output current (@240 VL-LAG-) Rated neutral current (@120 VL-N AC-) Interconnection Nominal voltage Nominal frequency Usable capacity Ambient operating temperature range (charging)' Ambient operating temperature range (discharging)' Chemistry Mounting Product dimensions 7.08 kVA' 29.5 A' 24 A' Single-phase 120/240 VAC- 60 Hz 10.0 kWh' -20°C to 50°C (-4°F to 122°F) Non -condensing -2O`C to 55°C (-4°F to 131T) Non -condensing Lithium iron phosphate (LFP) Wall -mount or pedestal -mount (sold separately) 14- 4— 4"' 4 J 4"' 24.5" 15' aaN � `Ey'EM0„� 28" 14.4" — r - 4" The 4" clearances on the sides and the top are per the UL 9540A evaluation, Enphase recommends 8" for ease of service. "Follow the local and national regulations while planning. A 15" clearance in the front is recommended for ease of service. 'Refer to the following page for more details. NORTH AMERICA ® Powerful • Provides 56 A peak current for three seconds • Includes four embedded IQBB Microinverters • Most powerful microinverter with up to 2.1 kVA continuous power G Reliable • Cools passively with no moving parts or fans • Uses wired communication for fast and consistent connection • Updates software and firmware remotely O Simple • Fully integrated AC Battery system with neutral forming capabilities • Installs and commissions easily • Offers homeowners remote monitoring and control from the Enphase App • Field replaceable components O Safe • Evaluated to UL 9540A, the highest industry standard for battery safety • Uses LFP chemistry for maximum safety and longevity Name Description Model Number Ordering SKU 5 kWh battery unit IQ Battery 10C cover kit IQ Battery 10C unit Rated (continuous) output power Nominal voltage/range Nominal frequency/range Rated output current (@240 VL-LAC-) Rated neutral current (@240 VL-NAC-) Peak output current (@240 VL-LAC-) Power Start capability Power factor (adjustable) Maximum conductor size supported Overcurrent protection device (OCPD) Interconnection AC round-trip efficiency' Total capacity10 Usable capacity" DC round-trip efficiency Nominal DC voltage Maximum DC voltage IQ Battery 10C The IQ Battery 10C system with integrated IQ Microinverters (S with a battery management system (BMS) as part of IQBL Micr Two 5 kWh battery units (ordering SKU: B05-001-USOC One IQ Battery 10CS cover kit with cover, interconnect accessories (Ordering SKU: B10CS-NC-0708-0-DOM). FOR PERMIT ISSUANCE IQBBL, IQBBN) ierters, includes: laster.ID: and I QBATTERY-10C-1 P-NA2 Standard Domestic B05-001-US00-1-3 B05-001-US00-1-3-DOM B10C-NC-0708-0 B10C-NC-0708-0-DOM 60% capacity, up to 15 years, or 6,000 cycles' 7.08 kVAS 240/211-264 VAC- 60/57-63 Hz 29.5 AS 24 A 56 A (three seconds), 44.8 A (ten seconds) Up to 90 A LRA7 0.85 leading ... 0.85 lagging 3AWG 40 A OCPD, requires a minimum of 8 AWG for one IQ Battery 10C or 80 A OCPD, requires a minimum of 4 AWG for two or more IQ Battery 1008 Single-phase 90% 10.0 kWh 10.0 kWh 96% 76.8 V 86.4 V The model number is used on the product nameplate, Certificate of Compliance, and in official regulatory listings (e.g., California Energy Commission). For all interconnection applications and permitting processes, please ensure that the model number is used —not the ordering SKU. Whichever occurs first. Restrictions apply. " Supported in both grid -connected and backup/off-grid operations. s 7.08 kVA, 29.5 A for the balanced 240 VL-L loads. a A maximum of 24 A, 120 VI-N unbalanced loads can be supported along with 5.5 A, 240 V L_L loads. 7 Power Start capability may vary. a More than two IQ Battery IOC on a 4 AWG circuit protected by 80 A OCPD requires setting Power Control System: IQ Battery Oversubscription. AC to the battery to AC at 50% power rating. 1O The IQ Battery 10C is typically shipped with a state of charge (SoC) between 20%and 30%to ensure safe transportation and optimal battery health during storage and handling. " The battery's usable capacity supports loads and turns PV on (when off -grid), in normal daily operation. The usable capacity includes a safety -critical limit of 2%that safeguards the customer's asset in case of a long -duration grid outage. An additional 3%capacity is maintained for battery electronic sustenance at night. Refer to https://Iink.enphase.com/iqbattery-usable-capacity_en-na for more information. © 2025 Enphase Energy. All rights reserved. Enphase, the a and CC logos. IQ and certain other marks listed at DSH-00565-6.0-EN-2025-07-31 httos://enohase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc. in the U.S. and other countries. Data subject to change. DSH-00565-6.0-EN-2025-07-31 CITY OF SAWA. ANA Planning and Building Agency Ambient operating temperature range -20°C to 50°C (-4°F to 122°F) Cover One cover for IQ Battery 10C (charging)12 non -condensing One interconnect power cable assembly for internally conni Ambient operating temperature range -20°C to 55°C (-4°F to 131°F) Interconnect power cable of IQ Battery 10C (discharging)13 non -condensing One interconnect control cable assembly for internally Conn Optimum operating temperature range 0°C to 30°C (32°F to 86°F)14 Interconnect control cable of IQ Battery 10C, having one preinstalled control connector Chemistry Lithium iron phosphate (LFP) end FOR PERMIT ISSUANCE two battery units Master ID: two battery units Date: out resistor) at one Control connector with resistor One spare control connector with resistor for control wiring Mechanical data Raceway adapter Two raceway adapters for routing cables internally between two battery units Dimensions (H x W x D) 621 mm x 708 mm x 365 mm (24.5 in x 28 in x 14.4 in) Cable holder Two cable holders for cable management in wiring compartments Maximum lifting weight 57 kg (125 lb) Conduit covers One left -side and one right -side conduit cover to close unused conduit openings Total installed weight for 144 kg (317 lb) Cover locking screw Four cover lockings screws for securing the covers. Enclosure Outdoor-NEMA 3R Quick install guide (QIG) QIG for IQ Battery unit installation instructions Cooling Natural convection Altitude15 Up to 3,000 meters (9,842 feet) Optional accessories and replacementparts IQ8BL-RMA IQ8BL Microinverter for field replacement Mounting Wall -mount or pedestal -mount (sold separately) IQ8BN-RMA IQ8BN Microinverter for field replacement Features and compliance B05-001-US00-1-3-RMA IQ Battery 10C 5.0 kWh battery unit for field replacement Compatible with IQ and M Series Microinverters, IQ Meter Collar, IQ Combiner 6C, Compatibility and IQ Gateway for grid -tied and backup operations. B10C-CX-0709-0 IQ Battery 10C cover for field replacement Communication Wired control communication B05C-WB-0662-0 IQ Battery 10C wall bracket for field replacement Services Backup, Self -Consumption, TOU, and NEM integrity B10C-PI-0550-0 IQ Battery 10C Pedestal Mount Monitoring Enphase Installer Platform and Enphase App monitoring options; API integration B05C-LH-0180-0 IQ Battery 10C Lifting Handles. Includes one left -side and one right -side lifting handle CA Rule 21(UL 1741-SA), IEEE 1547:2018 (UL 1741-SB, 3rd Ed.) CAN/CSA C22.2 No. B05C-ACFB-0138-0 IQ Battery 10C AC filter board for field replacement 107.1-16 B05C-NCANB-068-0 IQ Battery 10C control communication board for field replacement UL 954016, UL 9540A17, UN 38.3, UL 1998, UL 991, NEMA Type 3R, AC156 EMI: 47 CFR, Compliance B05C-CS-0161-0 IQ Battery 10C control switch for field replacement Part 15, Class B, ICES 003 Cell module: UL 1973, UN 38.3 B05C-NLTB-051-0 IQ Battery 10C live and neutral terminal block for field replacement Inverters: UL 62109-1, IEC 62109-2 B05C-NGTB-051-0 IQ Battery 10C ground terminal block for field replacement What's in the box B05C-NJTB-027-0 IQ Battery 10C jumper for the terminal block for field replacement There are a total of three boxes; two boxes contain the 5.0 kWh battery units, and the third box contains the IQ Battery 10C cover kit. B05C-NETB-049-0 IQ Battery 10C end stop and end cap of terminal block for field replacement 5.0 kWh battery unit B10C-PIC-0350-0 IQ Battery 10C Interconnect power cable for field replacement Battery units Two 5.0 kWh battery units of IQ Battery 10C B10C-CIC-0300-0 IQ Battery 10C Interconnect control cable for field replacement Mounting bracket Two mounting brackets for mounting the batteries on the wall B05C-CP-031-0 IQ Battery 10C conduit plug (large) for field replacement Seismic screws Four seismic screws for securing the battery unit on the mounting bracket B05C-CP-026-0 IQ Battery 10C conduit plug (small) for field replacement Twelve M8 hexagonal Phillips screws with washers for mounting the second wall B05C-CH-0132-0 IQ Battery 10C cable holder for field replacement Mounting bracket fasteners bracket on the preinstalled battery unit B10C-RA-050-0 IQ Battery 10C raceway adapter for field replacement Drill template Two drill templates to mark drilling points and conduit entry locations on the wall B05C-CC-090-0 IQ Battery 10C conduit cover for field replacement IQ Battery 10C cover kit B05C-WC-0620-0 IQ Battery 10C wiring cover for field replacement B05C-CAT-0100-0 IQ Battery 10C internal cables to connect AC filter board and terminal blocks " A reduction in charging power occurs at temperatures below 15,C and above 45°C. 13 A reduction in discharging power occurs at temperatures below 0°C and above 50°C. '" Keeping the battery in this temperature range maximizes the battery life. "Refer to the data sheet for all components used with the IQ Battery 10C to determine the maximum altitude. For example, the IQ Battery 10C has a maximum altitude limit of 3,000 meters, while the IQ Meter Collar has a limit of 2,500 meters. When used together, the maximum altitude is restricted to 2,500 meters. 's Following local standards, choose a non -habitable indoor location (like a 2-car garage) or an outdoor location where the ambient temperature and humidity are within -20°C to 55°C (-4°F to 131°F) and 5% to 95% RH, non -condensing. Avoid direct sunlight to ensure the temperature stays in the optimal operating range. This ensures charging and discharging currents are not de -rated due to temperature. 17 Evaluated to UL 9540A for thermal runaway fire propagation and reduced separation distance as required in 2021 IRC R328.3.1, 2021 IFC 1207.1.5, and 2023 NFPA 85515.3.1 and 9.1.5. Follow all installation instructions and local codes and requirements of the Authority Having Jurisdiction (AHJ) when installing the Enphase Energy System. DSH-00565-6.0-EN-2025-07-31 DSH-00565-6.0-EN-2025-07-31 PCS integration in 4th-generation Enphase Energy Systems TECHNICAL BRIEF Applicable regions: North America © 2025 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed at https://enphase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc. in the U.S. and other countries. Data subject to change. Contents 1 Introduction to Enphase Power Control......................................................................4 2 Supported configurations for Enphase Power Control.............................................4 2.1 Overview of the Enphase Energy System.........................................................................................4 2.2 Enphase Power Control in a grid-tied Enphase Energy System...................................................4 2.3 Enphase Power Control in a grid-forming Enphase Energy System............................................6 3 Benefits of Enphase Power Control..............................................................................8 3.1 Avoid costly interconnection equipment upgrades or installations............................................8 3.2 Benefit from a smaller payback period..............................................................................................8 3.3 Avoid expensive main panel upgrades..............................................................................................9 3.4 Benefit from longer backup time with high-power batteries........................................................9 3.5 Limit PV and battery power exported to the grid based on regional compliance...................10 3.6 Expand systems in California with NEM multi-tariff.......................................................................10 4 Power Control System integration in the Enphase Energy System.........................11 4.1 Components of Enphase Power Control..........................................................................................11 4.2 Setting up Enphase Power Control...................................................................................................12 4.2.1 Installation of IQ Combiner 6C and IQ Meter Collar in grid-forming configuration for Enphase Power Control.......................................................................................................... 12 4.2.2 Installation of the IQ Combiner 6C and Consumption Current Transformers in grid- tied configuration...........................................................................................................................13 4.2.3 Current transformer placement for Enphase Power Control features................................ 14 4.2.4 Application of the label for Enphase Power Control............................................................... 16 5 Enphase Power Control features.................................................................................17 5.1 IQ Battery over-subscription.............................................................................................................17 5.1.1 IQ Battery over-subscription in grid-tied or grid-forming configuration............................17 5.1.2 Compliance with regulations......................................................................................................20 5.1.3 Open loop response time............................................................................................................ 20 5.1.4 Failure modes and resolution......................................................................................................20 5.1.5 Configuration of IQ Battery over-subscription through the Enphase Installer App........ 20 5.1.6 Configuration of IQ Battery over-subscription through the Enphase Installer Portal.....22 Contents 2 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.2 Battery import/export-only mode for Enphase Energy System.................................................23 5.2.1 Battery import-only mode...........................................................................................................23 5.2.2 Battery export-only mode........................................................................................................... 24 5.2.3 Operation of battery import/export-only mode with other Enphase Power Control features........................................................................................................................................... 24 5.2.4 Configuring battery import/export-only mode via the Enphase Installer App..................24 5.3 MPU avoidance....................................................................................................................................25 5.3.1 Compliance with regulations......................................................................................................25 5.3.2 MPU avoidance using Busbar Overload Control.....................................................................26 5.3.3 MPU Avoidance with Feeder control (using NEC 120% or current limit directly entered)...........................................................................................................................................29 5.3.4 Failure mode and resolution for MPU avoidance.................................................................... 33 5.3.5 Configuring MPU avoidance through the Enphase Installer App........................................ 33 5.3.6 Configuring MPU avoidance through the Enphase Installer Portal.....................................36 5.3.7 Accounting for currents due to reactive power in the system..............................................37 5.4 Aggregate power export limit...........................................................................................................38 5.4.1 Aggregate power export limit in the grid-tied configuration................................................38 5.4.2 Aggregate power export limit in the grid-forming configuration.........................................39 5.4.3 Compliance with regulations......................................................................................................40 5.4.4 Failure modes and resolution.......................................................................................................41 5.4.5 Configuring aggregate power export limit feature through the Enphase Installer App....................................................................................................................41 5.4.6 Configuring aggregate PEL feature through the Enphase Installer Portal........................ 42 5.5 NEM Integrity Mode............................................................................................................................43 5.5.1 NEM Integrity Mode in grid-tied configuration........................................................................43 5.5.2 NEM Integrity Mode in grid-forming configuration.................................................................44 5.5.3 Compliance with regulations......................................................................................................45 5.5.4 Failure modes and resolution......................................................................................................46 5.5.5 Configuring NEM Integrity Mode through the Enphase Installer App................................. 46 5.5.6 Configuring NEM Integrity Mode through the Enphase Installer Portal..............................47 6 Revision history...............................................................................................................48 Contents 3 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 1. Introduction to Enphase Power Control Power Control Systems (PCS), as defined in NFPA 70, National Electrical Code 2020 Edition, control the output of one or more power production sources, energy storage systems (ESS), and other equipment. Power Control Systems can be used in a variety of use cases, for example, to limit current and loading on the busbars and conductors supplied by the power production sources and/or energy storage systems. Enphase Power Control implements power control that complies with the UL 1741 Certification Requirement Decision (CRD) and UL 3141 Outline of Investigation for Power Control Systems. The 4th-generation Enphase Energy System (EES) has interconnected electric power production sources, such as microinverters and/or IQ Batteries. The amount of power production sources connected to a system is generally governed by various sections of the NEC. Power Control System integration allows flexible installation of Enphase systems with minimal additional homeowners costs (for example, install more PV or batteries) or comply with special requirements in certain jurisdictions. This technical brief describes the benefits and implementation details of Power Control System integration for real-time current monitoring and export limits. Distributed energy resources (DER), mentioned in this document, refer to smaller generation units located on the consumer’s side of the meter, such as rooftop photovoltaic (PV) units, battery storage units, third-party generators, and other units. 2. Supported configurations for Enphase Power Control 2.1 Overview of the Enphase Energy System An Enphase Energy System can be classified into two configurations: •Grid-tied or non-backup systems: In a grid-tied system, Enphase microinverters and (optional) IQ Batteries will need the grid to be available to keep producing power or discharging to the loads. •Grid-forming or backup systems: Microinverters and IQ Batteries in a grid-forming system do not depend on the grid to keep producing power or to discharge the loads. An additional Microgrid Interconnect Device (MID) is required for these types of systems, for example, IQ Meter Collar. Both configurations support the Enphase Power Control features. The features supported in each configuration are discussed in the following sections. 2.2 Enphase Power Control in a grid-tied Enphase Energy System An Enphase Energy System in a grid-tied configuration has the following components: •IQ8 Series Microinverters •(Optional) IQ Battery •IQ Combiner 6C The following figure provides a bird's-eye view of the point of current being measured and limited using Enphase Power Control for each feature. Introduction to Enphase Power Control 4 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Existing AC Coupled PV System Main panel (Back-fed panel) IQ Series Microinverters N N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button Main DER breaker AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner controller Board ( C C B ) Integrated Production CT Integrated Battery CTs Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C IQ Battery Oversubscription Home loads Connect to EVSE CT connector on the gateway 11 Utility meter Grid IQ Battery IQ Battery Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D CT9, CT10 (L1,L2) Consumption CTs 1 2 Battery Import/Export Only Mode 4 3b 3a Aggregate Power Export Limit 5 NEM Integrity Mode Main Panel Upgrade Avoidance with Feeder Control Main Panel Upgrade Avoidance with Busbar Overload Control Integrated Backfeed CTs IQ EV Charger 8 CT11, CT12 L1, L2 Connect to LC CTs/Cons CTs connector Connect to LC CTs/Cons CTs connector 8 Figure 1: Example of an Enphase Energy System in grid-tied configuration Enphase Power Control enables five features with Enphase Energy System in grid-tied configuration: •IQ Battery Over-Subscription Mode (1): This feature limits the charge/discharge current and enables more battery capacity to be installed in grid-tied systems. The feature ensures that the total continuous output current from the batteries does not exceed 80% of the battery breaker rating. •Battery Import/Export Only Mode (2): •The import-only mode (also called non-exporting) ensures the IQ Battery never exports any power to the grid. •The export-only mode (also called charge from PV-only) ensures that the IQ Battery never imports any power from the grid, but can export to the grid. IQ Battery can operate either in battery import-only mode or battery export-only mode. •Main Panel Upgrade Avoidance (MPUA) mode with: •Busbar Overload Control (3a): This feature reduces the system payback period by allowing maximum renewable energy generation and helps avoid the cost of panel upgrades for large PV and battery systems. Supported configurations for Enphase Power Control 5 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN •Feeder Control (3b): This feature enables avoiding the cost of panel upgrades for large PV and battery systems. •Aggregate Power Export Limit Mode (4): This feature ensures that the aggregate power exported to the grid is limited to the Aggregate Power Export Limit (PEL) defined by the installer. •NEM Integrity Mode (5): This feature ensures that the total system exports no more power than the existing PV system, dynamically maintaining NEM integrity in jurisdictions like California, particularly for homeowners applying under the NEM Multi-Tariff (NEM-MT). 2.3 Enphase Power Control in a grid-forming Enphase Energy System A typical Enphase Energy System (EES) in a grid-forming configuration has the following components: •IQ8 Series Microinverters •IQ Battery •IQ Combiner 6C •IQ Meter Collar Enphase Power Control enables four features for grid-forming EESs with IQ Battery 10C, as shown in the following figure. This figure provides a bird’s-eye view of the point of current being measured/ monitored and limited using Enphase Power Control for each feature. Supported configurations for Enphase Power Control 6 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN IQ EV Charger N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner Controller Board (CCB) Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2)IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D N Grid Backed up Home loads IQ BatteryIQ Series Microinverters IQ Battery Connect to EVSE CT connector on the gateway IQ Battery Oversubscription1 Integrated Battery CTs Integrated Production CT Integrated Consumption CTs 2 Battery Import/Export Only Mode 4 Aggregate Power Export Limit 3a Main Panel Upgrade Avoidance with Busbar Overload Control 3b Main Panel Upgrade Avoidance with Feeder Control Main DER breaker Integrated Backfeed CTs 11 Main-meter combo with IQ Meter Collar behind the utility meter (back-fed panel) Existing AC Coupled PV System 5 NEM Integrity Mode Integrated LC CTs Figure 2: Example of an Enphase Energy System in grid-forming configuration with IQ Meter Collar installed in a main meter combo •IQ Battery Over-Subscription Mode (1): This feature limits the charge/discharge current and allows for more battery capacity to be installed on Storage breaker slot 1 and Storage breaker slot 2 in grid-forming systems than allowed based on the installed breaker rating. The feature ensures that the total continuous output current from the batteries does not exceed 80% of the battery breaker rating. •Battery Import/Export Only Mode (2): The battery import-only feature ensures the IQ Battery never exports any power to the grid. The battery export-only feature ensures that the IQ Battery never imports any power from the grid, but can export to the grid. IQ Battery can operate either in the battery import-only mode or the battery export-only mode. •MPU avoidance mode with: Supported configurations for Enphase Power Control 7 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN •Busbar Overload Control (3a): This feature reduces the system payback period by allowing maximum renewable energy generation and helps avoid the cost of panel upgrades for large PV and battery systems. •Feeder Control (3b): This feature enables avoiding the cost of panel upgrades for large PV and battery systems. •Aggregate Power Export Limit Mode (4): This feature ensures that the aggregate power exported as measured at the IQ Meter Collar is limited to the power export limit (PEL) value set by the installer. NOTE: Enphase PV production and battery discharge ensure that the aggregate export power adheres to the limit regardless of whether the battery is in export-only or import- only mode. •NEM Integrity Mode (5): This feature ensures that the total system exports no more power than the existing PV system, dynamically maintaining NEM integrity in jurisdictions like California, particularly for homeowners applying under the NEM Multi-Tariff (NEM-MT). 3. Benefits of Enphase Power Control 3.1 Avoid costly interconnection equipment upgrades or installations In the absence of the Enphase Power Control feature (battery import only mode), utilities in California, such as Pacific Gas & Electric (PG&E), San Diego Gas & Electric (SDG&E), and Southern California Edison (SCE) may require the installation of an additional net generation output meter (NGOM). This increases the cost of installation of the system for the homeowner. To avoid this additional cost, the homeowner may have to limit their battery to under 10 kW, which may not be sufficient for backing up their home loads. With the Enphase Power Control feature —battery import-only mode, no such trade-off is required when installing an Enphase Energy System. Utilities such as PG&E require energy storage systems to comply with the import-only mode with an open loop response time (OLRT) of less than two seconds. If the energy storage system complies with this requirement, the utility considers it non-exporting and may not require a feeder transformer upgrade in cases where the addition of an energy storage nameplate exceeds the thermal rating of the feeder transformer. 3.2 Benefit from a smaller payback period The Enphase Power Control feature, battery export-only mode, allows homeowners in the jurisdiction with NEM 3.0 to charge their IQ Battery from the PV and discharge to their home loads and to the grid. Homeowners can benefit from a lower payback period by storing excess PV power during off-peak hours and discharging the stored energy to the grid during the time when it is most beneficial to the homeowner based on the import and export tariff rates. The Enphase Power Control feature, MPU avoidance with Busbar Overload Control, allows maximum utilization of available renewable energy while avoiding the cost of main panel upgrades and reducing the payback period for the homeowner. Supported configurations for Enphase Power Control 8 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 3.3 Avoid expensive main panel upgrades The size of the PV and energy storage breakers permitted to be installed at a house may be limited by the NEC based on the size of the main panel and utility service rating. Installers may not be aware of such limits until late into the project. As a result, the system size sold to the homeowner may need an unplanned main panel upgrade, which adds significant labor and hardware costs to the project. The PCS-certified Enphase Power Control features, MPU avoidance with Busbar Overload Control and with Feeder Control, enable large PV and battery systems to be installed while complying with NEC code (NEC 2020 705.13 and NEC 2020 705.12, respectively). This enables installers to avoid the cost and time due to an unplanned main panel upgrade. Enphase Power Control uses real‑time current sensing to monitor and limit the current back-fed into the main panel. 3.4 Benefit from longer backup time with high-power batteries The Enphase Power Control feature, IQ Battery over-subscription mode, enables up to twice as many batteries per site compared to systems without the Power Control System enabled. The total number of batteries supported by IQ Combiner 6C, with and without the IQ Battery over-subscription feature, is listed in the following table. Table 1: Maximum continuous current, aggregate power, and aggregate energy comparison with and without the IQ Battery over-subscription Without IQ Battery over-subscription With IQ Battery over-subscription IQ C o m b i n e r Ma x . a l l o w e d I Q B a t t e r y 1 0 C u n i t s Ma x . c o n t i n u o u s o u t p u t c u r r e n t p e r b a t t e r y ( A ) Ag g r e g a t e p o w e r f r o m b a t t e r i e s ( k W ) Ag g r e g a t e e n e r g y s t o r a g e c a p a c i t y o f b a t t e r i e s ( k W h ) Ma x . a l l o w e d I Q B a t t e r y 1 0 C u n i t s Ma x . c o n t i n u o u s o u t p u t c u r r e n t p e r b a t t e r y ( A ) Ag g r e g a t e p o w e r f r o m t h e b a t t e r i e s ( k W ) Ag g r e g a t e e n e r g y s t o r a g e c a p a c i t y o f b a t t e r i e s ( k W h ) IQ Combiner 6C (X-IQ-4 29.5 28.32 40 8 16 30.72 80 Benefits of Enphase Power Control 9 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Without IQ Battery over-subscription With IQ Battery over-subscription IQ C o m b i n e r Ma x . a l l o w e d I Q B a t t e r y 1 0 C u n i t s Ma x . c o n t i n u o u s o u t p u t c u r r e n t p e r b a t t e r y ( A ) Ag g r e g a t e p o w e r f r o m b a t t e r i e s ( k W ) Ag g r e g a t e e n e r g y s t o r a g e c a p a c i t y o f b a t t e r i e s ( k W h ) Ma x . a l l o w e d I Q B a t t e r y 1 0 C u n i t s Ma x . c o n t i n u o u s o u t p u t c u r r e n t p e r b a t t e r y ( A ) Ag g r e g a t e p o w e r f r o m t h e b a t t e r i e s ( k W ) Ag g r e g a t e e n e r g y s t o r a g e c a p a c i t y o f b a t t e r i e s ( k W h ) AM1-240-6C ) (2 on storage breaker slot 1 + 2 on storage breaker slot 2) (4 on storage breaker slot 1 + 4 on storage breaker slot 2) 3.5 Limit PV and battery power exported to the grid based on regional compliance Utilities in certain geographies require that the power exported back to the grid is restricted to a prescribed power limit. The aggregate power export limit feature measures the aggregate power across all the phases being exported and limits the PV production and battery power (if present), to ensure that the power export at the location of the IQ Meter Collar with integrated consumption metering or the installed consumption current transformers (point of current measurement) does not exceed the limit specified by the installer in the Enphase Installer App. 3.6 Expand systems in California with NEM multi-tariff In California, expanding a PV system by more than 10% of the existing nameplate capacity or 1 kW (whichever is smaller) requires a new interconnection application and a transition from the existing NEM 1 or NEM 2 tariffs to NEM 3—also known as the Net Billing Tariff (NBT). NEM multi-tariff is an interconnection option offered by all three major California utilities (PG&E, SDG&E, and SCE). By using the certified NEM Integrity Mode feature under UL 3741 v2, homeowners can expand existing systems without losing their current tariff structure. More details are available at https://enphase.com/installers/expansion. Benefits of Enphase Power Control 10 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 4. Power Control System integration in the Enphase Energy System Enphase Power Control is a supplementary Power Control System. Supplementary Power Control Systems are systems or devices for use in circuits with an overcurrent device suitable for service, feeder, or branch circuit protection. 4.1 Components of Enphase Power Control •Current transformers (CTs): An Enphase Power Control-enabled site would require •A Production CT (integrated with the IQ Combiner 6C: X-IQ-AM1-240-6C). The Production CT provides revenue-grade metering of the power generated by the PV. •IQ Meter Collar with integrated Consumption CTs: MC-200-011-V01 or a set of two Consumption CTs: CT-200-CLAMP to be purchased separately. IQ Meter Collar (MC-200-011-V01) has integrated consumption metering and can be installed inside the main meter combo or can be installed in a Form 2S socket for measuring the current being exported to the grid or to the backup panel in real-time. Alternatively, in some configurations, Consumption CTs are installed inside the main panel to monitor the current being exported to the grid in real time. •A Battery CT (integrated with the IQ Combiner 6C: X-IQ-AM1-240-6C). •Power control system controller (IQ Gateway): An Enphase Power Control-enabled site incorporates the IQ Gateway to support IQ Microinverter and IQ Battery Systems. The IQ Gateway monitors the currents as reported by the CTs/IQ Meter Collar and uses this information to limit PV and ESS power production as required. •IQ Battery: Enphase Power Control ensures that the IQ Battery does not export any power to the grid when the battery import-only mode is enabled and that the IQ Battery does not import any power from the grid to charge when the battery export-only mode is enabled. •Other balance of system components: •IQ Combiner: Aggregates PV branches and energy storage. Enphase Power Control can limit the backfeed into the main panel from the IQ Combiner, per NEC requirements in grid-tied and grid-forming systems. NOTE: The IQ Combiner includes an integrated IQ Gateway, the Power Control System controller. IQ Gateway need not be repurchased if an IQ Combiner is already present at a site. •IQ Meter Collar: Integrates a microgrid interconnect device (MID) and consumption metering in grid-forming systems. •IQ EV Charger: Charges the electric vehicle (EV). It enables the Enphase Power Control feature, IQ EVSE MBTA, to control the EV charge current such that the total import current from the grid for supplying the home loads and for charging the electric vehicle together does not exceed the limit enforced by the main service breaker rating. Power Control System integration in the Enphase Energy System 11 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 4.2 Setting up Enphase Power Control 4.2.1 Installation of IQ Combiner 6C and IQ Meter Collar in grid-forming configuration for Enphase Power Control In the grid-forming configuration, the IQ Combiner 6C must be paired with the IQ Meter Collar. For detailed instructions on installing the IQ Meter Collar in a grid-forming configuration, refer to the IQ Combiner 6C quick install guide (QIG) . The QIG contains detailed information required for installers to install the IQ Meter Collar in the main meter combo or in a discrete Form 2S meter pan and to enable Enphase Power Control and provides information on the labels required to be added to the Power Control System-enabling devices by the installer. These labels are shipped inside the literature kit as a part of the IQ Combiner 6C. The high-level diagram of IQ Combiner 6C and IQ Meter Collar installation in a main meter combo in a grid-forming whole home backup configuration is shown in Enphase Power Control in a grid-forming Enphase Energy System on page 6. The high-level diagram of IQ Combiner 6C and IQ Meter Collar installation in a discrete Form 2S socket in a grid-forming whole home backup configuration is shown in the following figure. Power Control System integration in the Enphase Energy System 12 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN IQ Series Microinverters IQ EV Charger N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner Controller Board (CCB) Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D Grid Backed up home loads IQ Battery IQ Battery IQ Meter Collar in Form 2S meter pan N Utility meter Connect to EVSE CT connector on gateway Integrated Production CT Integrated Backfeed CTs Integrated Consumption CTs Integrated Battery CTs Non-backup heavy loads 11 Main panel (Back-fed panel) Figure 3: Bird’s-eye view of IQ Combiner 6C in grid-forming whole home backup configuration with the IQ Meter Collar installed in a discrete Form 2S socket 4.2.2 Installation of the IQ Combiner 6C and Consumption Current Transformers in grid-tied configuration Refer to the IQ Combiner 6C quick install guide (QIG) for detailed instructions on how to set up an Enphase Power Control-enabled system in a grid-tied configuration. Power Control System integration in the Enphase Energy System 13 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN IQ Series Microinverters IQ EV Charger N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay Integrated Backfeed CTs PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner controller board Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D N GridBackup panelBacked up home loads Non-backup heavy loads Utility meter N CT9, CT10 (L1,L2) IQ Battery IQ Battery Consumption CTs Connect to EVSE CT connector on gateway Integrated Battery CTs Integrated Production CT Connect to LC CTs/Cons CTs Connector 11 8 IQ Meter Collar in Form 2S meter pan Main panel (Back- fed panel) rehr NOTE: The IQ Combiner 6C unit includes an integrated load controller that utilizes the load controller CT connector. In this configuration, to add Consumption CTs,remove the connection to Load Control CT from the connector 8. For more details,refer to the IQ Combiner 6C quick install guide. Figure 4: Bird’s-eye view of IQ Combiner 6C in grid-tied configuration with the Consumption CTs installed between the main panel and utility meter 4.2.3 Current transformer placement for Enphase Power Control features The current transformer (CT) placement for each of the features is shown in the following table. Power Control System integration in the Enphase Energy System 14 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Table 2: CT placement for Enphase Power Control features Grid-forming configuration Grid-tied configuration Enphase Power Control feature CT(s) utilized CT placement CT(s) utilized CT placement IQ Battery over- subscription Integrated battery CT1 Integrated battery CT is already present in IQ Combiner 6C.1 Integrated Battery CT1 Integrated battery CT is already present in IQ Combiner 6C. 1 Battery import-only Integrated Production CT, battery CTs, and integrated consumption metering in IQ Meter Collar Integrated Production CT is already present in IQ Combiner 6C. Integrated battery CT is already present in IQ Combiner 6C. In the whole home backup, IQ Meter Collar for consumption monitoring can be installed in the main meter combo or a discrete Form 2S socket. Integrated Production CT, integrated battery CT, and Consumption CTs Integrated Production CT is already present in IQ Combiner 6C. Integrated battery CT is already present in IQ Combiner 6C. Consumption CTs are placed between the main panel and the utility meter. Battery export-only Integrated Production CT, integrated Battery CT, and integrated consumption metering in IQ Meter Collar Integrated Production CT is already present in IQ Combiner 6C. Integrated battery CT is already present in IQ Combiner 6C. In the whole home backup, the IQ Meter Collar for consumption monitoring can be installed in the main meter combo or a discrete Form 2S socket. Integrated Production CT, integrated battery CT, and Consumption CTs Integrated Production CT is already present in IQ Combiner 6C. Integrated battery CT is already present in IQ Combiner 6C. Consumption CTs are placed between the main panel and the utility meter. Main panel upgrade avoidance with busbar overload control (BBoC) Integrated backfeed CT and integrated consumption metering in IQ Meter Collar Integrated backfeed CT is already present in IQ Combiner 6C. In the whole home backup, the IQ Meter Collar for consumption monitoring can be installed in the main meter combo or a discrete Form 2S socket. Integrated backfeed CT and Consumption CTs Integrated backfeed CT is already present in IQ Combiner 6C. Consumption CTs are placed between the main panel and the utility meter. 1 Battery CT is not utilized for IQ Battery over-subscription, but it is required for other functionality of IQ Battery 10C. Power Control System integration in the Enphase Energy System 15 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Grid-forming configuration Grid-tied configuration Enphase Power Control feature CT(s) utilized CT placement CT(s) utilized CT placement NEM Integrity Mode Integrated load control CTs and consumption metering in IQ Meter Collar The integrated load controller CT is already present in the IQ Combiner 6C. For whole home backup, the IQ Meter Collar for consumption monitoring can be installed in either the main meter combo or a separate Form 2S socket. Consumption CTs and an additional pair of Consumption CTs Consumption CTs are installed between the main panel and the utility meter, with the arrows pointing toward the main panel. An additional pair of paralleled Consumption CTs must be installed at the point where the existing PV production lines (L1, L2) connect, with the arrows pointing toward the IQ Combiner 6C. Main panel upgrade avoidance with NEC 120% rule Integrated backfeed CT Integrated backfeed CT is already present in IQ Combiner 6C. Integrated backfeed CT Integrated backfeed CT is already present in IQ Combiner 6C. Aggregate power export limit Integrated consumption metering in IQ Meter Collar In the whole home backup, the IQ Meter Collar for consumption monitoring can be installed in the main meter combo or a discrete Form 2S socket. Consumption CTs Consumption CTs are placed between the main panel and the utility meter. NOTE: The installer can configure MPU avoidance, IQ Battery over-subscription, battery import/export-only, and aggregate power export limit Power Control System features using the Enphase Installer App or Enphase Installer Portal. 4.2.4 Application of the label for Enphase Power Control The installer must apply relevant labels when enabling Enphase Power Control features to comply with regulations. The instructions to apply these labels are provided in the following documents: •For grid-forming configuration: IQ Combiner 6C quick install guide and IQ Meter Collar quick install guide •For grid-tied configuration: IQ Combiner 6C quick install guide Power Control System integration in the Enphase Energy System 16 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5. Enphase Power Control features 5.1 IQ Battery over-subscription 5.1.1 IQ Battery over-subscription in grid-tied or grid-forming configuration IQ Battery over-subscription allows homeowners to add more IQ Battery 10C(s) to their grid-tied systems, enabling more capacity for self-consumption or economic savings. In grid-forming configurations, this feature allows homeowners to meet their higher energy storage requirements by adding more batteries to their Enphase Energy System, enabling them to have up to twice as much backup time as the previous generation. Main panel (Back-fed panel) IQ Series Microinverters IQ EV Charger Connect to LC CTs/Cons CTs connector N N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button Main DER breaker AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner controller Board ( C C B ) Integrated Production CT Integrated Battery CTs Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C IQ Battery Oversubscription avoids tripping breakers if the battery nameplate is oversized Connect to EVSE CT connector on gateway Utility meter Grid IQ Battery IQ Battery Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D CT9, CT10 (L1,L2) Consumption CTs Additional loads Home loads 8 11 Figure 5: Example of IQ Battery over-subscription in a grid-tied system with IQ Combiner 6C In a grid-tied or grid-forming configuration, IQ Battery 10C(s) can be connected to the IQ Combiner 6 on one of the two breaker slots. The installer can input the breaker size of storage breaker 1 or breaker Enphase Power Control features 17 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 2 through the Enphase Installer App or Enphase Installer Portal during commissioning. Enphase Power Control ensures that currents on the conductors landing on the IQ Combiner breaker slot are limited to the breaker size. The maximum breaker rating for the single battery breaker slot is 80 A. System design and sizing: IQ Battery over-subscription with IQ Combiner 6 As shown in Benefit from longer backup time with high-power batteries on page 9, IQ Battery over-subscription is supported with IQ Combiner 6C. The IQ Combiner 6C supports up to 2 × 80 A IQ Battery branch circuits. The IQ Combiner 6C has two storage breakers, so IQ Battery 10C(s) can be connected to a storage port and/or additional DER 3 port. The placement of the IQ Batteries on each port determines the maximum aggregate continuous power available from the battery system. The ideal placement of the IQ Batteries maximizes the aggregate continuous power (kW) and aggregate overload current available from the chosen battery system with the given aggregate storage energy (kWh). The optimal placement of IQ Battery 10C(s) is shown in the following table, assuming that the breaker rating on each port is adequately sized up to 80 A. Enphase Power Control features 18 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Table 3: Optimal placement of the IQ Battery 10C(s) on two breakers of IQ Combiner 6C Ideal battery placement At Storage Breaker 1 At Storage Breaker 2 Aggregate To t a l n o . o f b a t t e r i e s No . o f b a t t e r i e s o n s t o r a g e b r e a k e r - 1 No . o f b a t t e r i e s o n s t o r a g e b r e a k e r - 2 IQ B a t t e r y o v e r - s u b s c r i p t i o n Ma x i m u m c o n t i n u o u s c u r r e n t f r o m p o r t ( A ) Ma x i m u m o v e r l o a d c u r r e n t f r o m p o r t ( A ) IQ B a t t e r y o v e r - s u b s c r i p t i o n Ma x i m u m c o n t i n u o u s c u r r e n t f r o m p o r t ( A ) Ma x i m u m o v e r l o a d c u r r e n t f r o m p o r t ( A ) Ma x i m u m c o n t i n u o u s c u r r e n t o f t h e s y s t e m ( A ) Ma x i m u m o v e r l o a d c u r r e n t o f t h e s y s t e m ( A ) Ma x i m u m e n e r g y o f t h e s y s t e m ( k W H ) N = N ₁ + N ₂ N₁ N₂ En a b l e d i f ( N ₁ > 2 b a t t e r i e s ) I₁ Iov e r l o a d 1 En a b l e d i f ( N ₂ > 2 b a t t e r i e s ) I₂ Iov e r l o a d 2 I₁ + I ₂ IOv e r l o a d 1 + I Ov e r l o a d 2 (N ₁ + N ₂ ) * E B a t t e r y 1 1 0 Disabled 29.5 56 Disabled 0 0 29.5 56 10.0 2 2 0 Disabled 59 112 Disabled 0 0 59 112 20.0 3 2 1 Disabled 59 112 Disabled 29.5 56 88.5 168 30.0 4 2 2 Disabled 59 112 Disabled 59 112 118 224 40.0 5 3 2 Enabled 64 128 Disabled 59 112 123 240 50.0 6 3 3 Enabled 64 128 Enabled 64 128 128 256 60.0 7 4 3 Enabled 64 128 Enabled 64 128 128 256 70.0 8 4 4 Enabled 64 128 Enabled 64 128 128 256 80.0 The optimal placement shown in the preceding table ensures maximum continuous current and maximum overload current at a site. The installer can opt for configurations other than the preceding configurations, but these configurations may result in sub-optimal maximum continuous current and maximum overload current. Enphase Power Control features 19 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.1.2 Compliance with regulations Per NFPA and NEC 2020 706.31 (B), the overprotection device rating shall not be less than 125% of the maximum average continuous current in the circuit connected to the energy storage system. By ensuring that the aggregate output current from all the IQ Batteries connected to the storage DER port or slot (or additional DER port) does not exceed 125% of the corresponding storage DER breaker rating electronically, the feature IQ Battery over-subscription feature allows more IQ Batteries to be connected to the Enphase system while being compliant with NEC 2020 706.31 (B). 5.1.3 Open loop response time Refer to the latest PCS certification on the Enphase webpage to find the response time of this mode. 5.1.4 Failure modes and resolution The following table describes failure modes and corresponding resolutions. Table 4: Failure modes and resolutions Failure mode Resolution mechanism IQ Battery communication failure with IQ Gateway If the IQ Gateway loses communication with the IQ Battery for more than 20 seconds, •When on-grid, IQ Battery 10C automatically falls into idle mode. That is, there is no charge or discharge. •When off-grid, IQ Battery 10C discharges up to the allowed safe limit current. 5.1.5 Configuration of IQ Battery over-subscription through the Enphase Installer App Under System Details, go to Site Configuration > PCS Based Limiting > IQ Battery Oversubscription Check. Enphase Power Control features 20 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN When configuring the IQ Battery 10C over-subscription, as shown in the following figure, the installer must input the number of IQ Battery 10C(s) and breaker sizes on the port. The Enphase Installer App determines if the IQ Battery over-subscription needs to be enabled if the aggregate current from IQ Battery 10C(s) on a breaker exceeds the breaker rating. The Enphase Installer App shows the recommended number of IQ Batteries on each port to maximize the continuous and overload currents in the system. In an IQ Combiner 6C, the Enphase Installer App ensures that the maximum breaker rating for the two battery breaker slots of 80 A each. Enphase Power Control features 21 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN NOTE: Each IQ Battery 10C unit is considered as two separate units in the Enphase Installer App. In the preceding figure, four batteries on Breaker 1 is equivalent to two IQ Battery 10C units and two batteries on Breaker 2 is equivalent to one IQ Battery 10C unit. 5.1.6 Configuration of IQ Battery over-subscription through the Enphase Installer Portal Go to Systems > Activations > Configuration > PCS Based Limiting > IQ Battery Oversubscription. When configuring IQ Battery over-subscription in the Enphase Installer Portal for grid-forming configuration, as shown in the following figure, the installer must input the number of IQ Battery 10C(s) and breaker sizes on each port. If the breaker sizes are insufficient to support the batteries, the Enphase Installer App prompts the installer to enable the IQ Battery Oversubscription feature. Enphase Power Control features 22 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.2 Battery import/export-only mode for Enphase Energy System Enphase IQ Batteries can operate either in the battery import-only mode or in the battery export-only mode. NOTE: Battery modes are selectable only if the battery installation is in California. 5.2.1 Battery import-only mode The import-only mode feature for IQ Battery 10C ensures that the battery never exports power to the grid. The feature is certified for any systems that have a UL Listed PV inverter. System sizing for battery import-only mode with IQ Battery 10C Enphase Power Control with battery import-only mode ensures no IQ Battery current is exported to the main panel. This is accomplished by measuring and controlling all production current and power. Enphase Power Control ensures that the current at the Consumption CTs never exceeds the PV production current, thus never exporting battery current past the Consumption CTs. In the battery import-only mode, the Enphase Energy System does not export battery current past the Consumption CTs. Therefore, the current from IQ Batteries need not be accounted for when calculating the current exported to the grid by the system. As a result, installers only need to account for the size of the PV system while calculating export, and need not account for the size of the IQ Battery system installed. This saves labor and upgrade costs for installers and system owners. NOTE: Power Control System is covered in Article 705.13 of the NEC 2020 edition. Authorities Having Jurisdiction (AHJs) may not recognize the Power Control System feature until the 2020 NEC is adopted in their region. Open loop response time The maximum open loop response time (OLRT) with battery import-only mode in the Enphase Energy System is less than two seconds. Enphase Power Control features 23 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.2.2 Battery export-only mode Battery export is the only mode for IQ Battery 10C that allows the IQ Battery to export to the grid. This feature is certified with any UL Listed PV inverters. Homeowners can leverage this feature to lower their payback period on their solar plus battery systems, as Enphase ensures that the IQ Battery stores the excess PV production and exports to the grid when it is most beneficial to the homeowner based on the import and export tariff rates. System sizing for battery export-only mode with IQ Battery 10C Enphase Power Control with Battery export-only mode ensures that the IQ Battery never imports from the grid. It is performed by ensuring that the battery charge current measured at the Battery CT is always less than the PV production current measured at the Production CT. Battery discharge is only ensured to obey other Power Control System features. In Battery export-only mode, as Enphase Energy System exports battery current to the grid, the current from IQ Batteries must be accounted for when calculating the current exported to the grid by the system. However, the Battery export-only mode can be paired with other Enphase Power Control features that allow for the installation of large Enphase solar plus battery systems without the need for main panel upgradation costs or additional labor costs if the Enphase system has IQ8 Series Microinverters. Open loop response time The maximum open loop response time (OLRT) with battery export mode in the Enphase Energy System is less than two seconds. 5.2.3 Operation of battery import/export-only mode with other Enphase Power Control features Battery import/export-only mode works in conjunction with other Enphase Power Control features— IQ Battery over-subscription, MPU avoidance, and Aggregate Power Export Limit. Enphase Energy System ensures that the power control limits set with respect to the other features are adhered to when the battery export or import-only modes are enabled. 5.2.4 Configuring battery import/export-only mode via the Enphase Installer App Under System Details, go to PCS based Limiting > Battery Mode. Then, select Import Only or Export Only. The battery mode selection expires in seven days, starting from the selection of the tariff structure. The selection of mode is not possible in the Enphase Installer App if seven days have elapsed after the selection of the tariff structure. NOTE: Battery export-only mode is currently only available in jurisdictions with Net Energy Metering 3.0 (NEM 3.0). In jurisdictions other than NEM 3.0, the battery mode is set to battery import-only mode by default. Enphase Power Control features 24 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN NOTE: If the battery mode needs to be changed after the selection has expired in the Enphase Installer App, contact Enphase Support. The Battery mode can only be changed based on the validity of the claim. 5.3 MPU avoidance MPU avoidance with Busbar Overload Control allows maximum renewable energy generation and helps avoid the cost of panel upgrades for large PV and battery systems under the National Electric Code (NEC) 2020 705.13, reducing the system payback period. MPU avoidance with Feeder Control enables avoiding the cost of panel upgrades for large PV and battery systems by controlling the backfeed current into the main panel according to the National Electric Code (NEC) 2020 705.12. The feature ensures that the backfeed current allowed into the main panel is limited according to the configuration provided by the installer for both grid-tied and grid-forming configurations. The MPU avoidance feature can be configured using the following three options: •Using Busbar Overload Control •With Feeder Control (using the NEC 120% rule) •With Feeder Control (using the Current Limit Directly Entered) 5.3.1 Compliance with regulations Compliance of MPU avoidance Busbar Overload Control with NEC 2020 705.13 According to the National Electric Code (NEC) 2020 705.13 (A) through (E), the Enphase Power Control feature, MPU avoidance with Busbar Overload Control, controls the backfeed from the Enphase Power Control features 25 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Enphase PV and IQ Battery 10C such that the sum of the backfeed current from the DERs and the current being drawn from the grid is equal to or less than the rating or the ampacity of the busbar. Compliance of MPU avoidance with Feeder Control using the NEC 120% rule or the current limit directly entered with NEC 2020 705.12 The National Electric Code (NEC) 2020 705.12 allows backfeed of current from solar or storage into the main panel, subject to the following limit: Backfeed or continuous current from DERs allowed ≤((120% of busbar rating) – ampacity of the overcurrent protection device protecting the busbar)/125%. NOTE: The NEC 2020 705.12 section also contains other articles (such as the sum of breakers) that may be used to determine the backfeed limit. However, using the above calculation is the most common. Later in this document, this rule may be referred to as the NEC 120% rule. 5.3.2 MPU avoidance using Busbar Overload Control When the option to use MPU avoidance using Busbar Overload Control is selected, the feature continuously monitors the backfeed current (Ibackfeed) using the integrated Backfeed CTs, and current entering the main panel from the grid Consumption CTs (Iconsumption) respectively. It then limits the current from the battery (Ibattery) and PV (Iproduction) in real time such that the total current entering the busbar does not exceed the busbar ampacity. The diagram for MPU avoidance with Busbar Overload Control in the grid-tied configuration is shown in the following figure. Enphase Power Control features 26 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Main panel (Back-fed panel) IQ Series Microinverters IQ EV Charger Connect to LC CTs/Cons CTs Connector N N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button Main DER breaker AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner controller Board ( C C B ) Integrated Production CT Ibattery Integrated Battery CTs Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Connect to EVSE CT connector on the gateway Utility meter Grid IQ Battery IQ Battery Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D CT9, CT10 (L1,L2) Integrated Backfeed CTs Ibackfeed Iconsumption Consumption CTs Main Panel Upgrade Avoidance with Busbar Overload Control Main Panel Upgrade Avoidance with Feeder Control Additional loads 11 8Home loads Figure 6: MPU avoidance using Busbar Overload Control in grid-tied configuration NOTE: Enphase Systems can use Feeder Control on the Main DER breaker along with Busbar Overload Control. This is set automatically if the Main DER breaker is undersized compared to the nameplate, as described in further sections. The following figure shows the diagram for MPU avoidance with Busbar Overload Control in the grid-forming configuration. Enphase Power Control features 27 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN IQ EV Charger Ibackfeed Integrated Production CT Integrated Backfeed CTs N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner Controller Board (CCB) Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2)IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D N Grid Backed up home loads Non-backup heavy loads IQ BatteryIQ Series Microinverters IQ Battery Connect to EVSE CT connector on the gateway Integrated Battery CTs Integrated Consumption CTs Main Panel Upgrade Avoidance with Busbar Overload Control Main Panel Upgrade Avoidance with Feeder Control Main DER breaker Iconsumption 11 Main-meter combo with IQ Meter Collar behind the utility meter (back-fed panel) Figure 7: MPU avoidance using Busbar Overload Control in grid-forming configuration NOTE: For MPU avoidance with Busbar Overload Control in either grid-tied or grid-forming configuration, if Consumption CTs and IQ Meter Collar on a pan are used, they must be placed between the main panel and the grid so current from the grid is accurately measured. System sizing for MPU avoidance with Busbar Overload Control With the MPU avoidance option, Busbar Overload Control, the maximum allowed main DER breaker size (backfeed breaker size) is given by the lower rating of (main service breaker in Amperes, 80% of main panel busbar rating in Amperes, 125 A). Enphase Power Control features 28 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN NOTE: For MPU avoidance with Busbar Overload Control and IQ Combiner 6C, the maximum main DER breaker size (backfeed breaker size) is limited to 125 A. For example, as seen in the preceding figures, if the main load panel busbar size is 100 A and the grid-side main service breaker size is also 100 A, the maximum continuous current backfeed allowable from the IQ Combiner to the main panel is limited to 80 A (the minimum of three values: 100 A, 80% of 100 A, or 125 A). Therefore, in this scenario, the main DER breaker can be sized up to 80 A. The system ensures that the production and battery current is limited such that the current in the busbar never exceeds 100 A by monitoring the Production CT, Battery CT, and Consumption CTs. 5.3.3 MPU Avoidance with Feeder control (using NEC 120% or current limit directly entered) In grid-tied configuration When selecting the option to use MPU avoidance using the NEC 120% rule or current limit directly entered in grid-tied configuration, the feature continuously monitors the current being produced cumulatively by the installed PV array and the IQ Battery using integrated backfeed CTs. It then limits the produced power in real time based on the current limit imposed by the NEC 120% rule. The following figure shows this grid-tied configuration feature. Enphase Power Control features 29 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Main panel (Back-fed panel) IQ Series Microinverters IQ EV Charger Connect to LC CTs/Cons CTs Connector N N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button Main DER breaker AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner controller Board Integrated Production CT Ibattery Integrated Battery CTs Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Home loads Connect to EVSE CT connector on the gateway 11 Utility meter Grid IQ Battery IQ Battery Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D CT9, CT10 (L1,L2) Integrated Backfeed CTs Ibackfeed Main Panel Upgrade Avoidance with Feeder Control Additional loads 8 Figure 8: MPU avoidance with Feeder Control in grid-tied configuration The battery discharge is controlled first, followed by the PV production current to limit Ibackfeed entering the main DER breaker in the main panel. The main DER breaker must be sized to the PCS limit as per NEC 2020 705.13 (C). System sizing for MPU avoidance with the NEC 120% rule and the current limit directly entered in a grid-tied system For example, as seen in the preceding figure, if the main load panel busbar size is 200 A and the grid-side main service breaker size is also 200 A, the maximum continuous current backfeed allowable from the IQ Combiner to the main panel, Ibackfeed, is limited to: ((120% * busbar rating) – main service breaker size)/125% = total DER current ((120% * 200)-200)/125% = 32 A. In this scenario, the system ensures that no more than 32 A of continuous current is exported back to the main panel. The integrated backfeed CTs inside the IQ Combiner 6C will monitor the current being back-fed into the main panel in real time and feed this information to the IQ Gateway. If the Enphase Power Control features 30 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN current being back-fed to the main panel increases beyond 32 A, the IQ Gateway sends a signal to PV microinverters and the battery to limit their production and discharge, respectively. NOTE: The PV branch breakers in the IQ Combiner cannot be oversubscribed and must be sized to the nameplate of the PV on the respective branches. MPU avoidance in grid-tied configuration supports a maximum PV nameplate rated output of 80 A and a maximum battery nameplate output (to limit per-phase backfeed levels to the main panel) of 118 A. In systems with IQ Battery 10C, MPU avoidance in grid-tied configuration works in conjunction with IQ Battery over-subscription. Operation with IQ Battery over-subscription For example, in the preceding figure, the Ibackfeed allowed is 32 A. If Iproduction is 0 A, the maximum allowed Ibattery is 32 A. However, consider a scenario where IQ Battery over-subscription is enabled with the Battery breaker on IQ Combiner as 20 A. Ibackfeed allowed remains 32 A, but if Iproduction is 0 A, the maximum allowed Ibattery is 16 A. In grid-forming configuration MPU avoidance in grid-forming configuration, when the option for NEC 120% rule or the current limit directly entered is selected, the feature continuously monitors the current being produced cumulatively by the installed PV array and the IQ Battery using integrated backfeed CTs. It then limits the produced power in real time based on the current limit imposed by the NEC 120% rule. The following figure shows this grid-forming configuration feature. Enphase Power Control features 31 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN IQ EV Charger Ibackfeed * I p r o d u c Integrated Production CT Integrated Backfeed CTs N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner Controller Board (CCB) Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2)IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D N Grid Backed up home loads Non-backup heavy loads IQ BatteryIQ Series Microinverters IQ Battery Connect to EVSE CT connector on the gateway Integrated Battery CTs Integrated Consumption CTs Main Panel Upgrade Avoidance with Feeder Control Main DER breaker 11 Main-meter combo with IQ Meter Collar behind the utility meter (back-fed panel) Figure 9: MPU avoidance with Feeder Control in grid-forming configuration System sizing with MPU avoidance using the NEC 120% rule or the current limit directly entered in a grid-forming system For example, as seen in the preceding figure, if the main load panel busbar is 200 A and the grid size breaker is also 200 A, the maximum continuous current backfeed allowable from the IQ Combiner 6C to the main panel is limited to ((120% × busbar rating) – main breaker size)/125% = total DER current ((120% × 200) – 200)/125% = 32 A. Therefore, in this scenario, the system ensures that no more than 32 A of continuous current is back-fed to the main panel. Enphase Power Control features 32 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN NOTE: The PV breakers in the IQ Combiner 6C cannot be oversized and must be sized to the PV nameplate rating. NOTE: For this MPU avoidance use case to be accepted by an AHJ, the AHJ must recognize PCS. PCS is part of the 2020 edition of the NEC. The edition of NEC in effect in various states can be found on the NFPA website. 5.3.4 Failure mode and resolution for MPU avoidance Enphase Power Control is designed for robustness. The system ensures adherence to the NEC guidelines of current back-fed even when one or more devices have stopped communicating with the IQ Gateway. Table 5: Failure mode and solution mechanism Failure mode Resolution mechanism Production, Battery, Backfeed, or Consumption CTs not reporting the correct value or missing PV production current and IQ Battery current will be curtailed to a safe limit. IQ Battery communication failure If the IQ Gateway loses communication with the IQ Battery for more than 20 seconds, the IQ Battery discharge is completely curtailed. Microinverter communication failure If IQ Gateway loses communication with the microinverter for more than 10 seconds, PV production will be curtailed to the safe limit. PCS controller or IQ Gateway failure If the IQ Gateway loses communication with the microinverters for more than 10 seconds and with the IQ Battery for more than 20 seconds, all PV and IQ Battery discharges are curtailed to a safe limit. 5.3.5 Configuring MPU avoidance through the Enphase Installer App Under System Details, go to Site Configuration > PCS Based Limiting > Main Panel Upgrade Avoidance, as shown in the following figure. Enphase Power Control features 33 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN NOTE: For MPU avoidance with Busbar Overload Control, Consumption CTs or Meter Collar must be placed between the main panel and the utility meter. In the PCS Export Limiting > Main Panel Upgrade Avoidance section, the installer has three ways of setting up the feature: •Busbar Overload Control: In this option, the installer adds information on the rating of the main load panel, the main service breaker, and the main DER breaker. The system utilizes these inputs to configure the Busbar Overload Current feature, complaint with 2020 NEC 705.13 (A) through (E). •Current Limit with NEC 120% rule: In this option, the installer adds information on the rating of the main load panel busbar and the main service breaker rating. The system then auto-calculates the export current limit based on the 2020 NEC 705.12 (B) (2) or (4) rule. •Current Limit Directly Entered: There may be situations where a homeowner may have an additional DER system connected to the main panel that is not monitored by the Enphase Power Control feature. This could be a DER from another manufacturer or Enphase’s legacy microinverters. In either case, the installer needs to account for the current being back- fed from such a system and ensure they limit the maximum current export value of the Enphase Energy System so that the total current exported back to the grid remains compliant with the NEC guidelines. The following figure shows the MPU avoidance configuration with Busbar Overload Control. Enphase Power Control features 34 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN The following figure shows the MPU avoidance configuration with the NEC 120% rule. There may also be situations where the site complies with a subsection of the 2020 NEC 705.12 rule other than 705.12(B)(2) or 705.12(B)(4), which Enphase Power Control uses to auto-calculate the maximum allowable backfeed current. Enphase Power Control features 35 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN To account for such situations, the Enphase Installer App provides installers with the ability to define the maximum allowable backfeed current by setting the Current Limit Directly Entered parameter in the Enphase Installer App. If the Current Limit Directly Entered parameter is set, the system uses this value and does not auto-calculate backfeed current limits based on the NEC 120% rule. As shown in the following figure, the installer can directly set the PCS export current limit based on their discretion with this option. The following figure shows the MPU avoidance configuration using direct current limit input. NOTE: For safety, the Current Limit Directly Entered parameter must still comply with the NEC 705.12 rules to keep the main panel within safe limits. See Busbar Overload Control if you need to increase the backfeed current limit. For example, if a site has an Enphase Energy System and a third-party PV system connected to a main panel, the main service breaker rating is 200 A, and the main panel busbar rating is 200 A. The maximum allowed continuous current from both the PV systems is 32 A. If the third-party PV system supplies a maximum continuous current of 16 A, then the installer can manually set the maximum continuous current for the Enphase Energy System to 16 A, that is, 32 A–16 A using the Current Limit Directly Entered parameter in Enphase Installer App. The Enphase Power Control feature does not start functioning until the meters are enabled and the site is commissioned in the Enphase Installer App. If the main DER breaker has the risk of tripping before the commissioning has finished, turn off the breakers on 1 or 2 PV branches while enabling the main panel upgrade avoidance feature and turning the PV breakers back on after successful commissioning. 5.3.6 Configuring MPU avoidance through the Enphase Installer Portal Go to Systems > Activations > Configuration > PCS Export Limiting > Main Panel Upgrade Avoidance. The following figure shows the configuration screen of the Enphase Power Control feature. Enphase Power Control features 36 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.3.7 Accounting for currents due to reactive power in the system There is always a certain amount of reactive power generated in the system due to the presence of capacitors inside the PV microinverters. Due to the presence of this reactive power in the system, the current from the system can never be completely curtailed down to 0. This does not impact our functionality of limiting export to the grid in any way because reactive power is not accounted for by utilities when measuring the export from DER to the utility grid. Utilities calculate exports based on the active power component. However, this current due to reactive power must be considered when using Enphase Power Control to control the export current from the DER to the main panel to avoid a main panel upgrade. Handling reactive power when the current limit is derived based on the NEC 120% rule If the installer enters a system configuration such that the total current in the system due to reactive power will exceed the limit to which the export current needs to be curtailed based on the NEC 120% rule, the installer will see a pop-up such as the one mentioned in the following figure. The installer will have the option to click CANCEL and re-enter the system configuration if required or click CONTINUE and proceed. If the installer chooses to proceed, then the system limits the export current to the current generated due to the reactive power generated in the system and cannot limit it to any value below that. Therefore, there is a possibility of the system not being compliant with the NEC 120% rule. Handling reactive power when the current limit is directly entered by the installer Enphase Power Control features 37 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN We must account for the presence of currents due to reactive power in the system. If the installer enters a value that is lower than the total current generated by reactive power in the system, the pop-up is displayed as shown, asking the installer to re-enter an appropriate value. 5.4 Aggregate power export limit The aggregate power export limit feature ensures that the power exported by the Enphase Energy System across all phases, that is, aggregate power, to the grid does not exceed the power export limit set in the Enphase Installer App by the installer. The Enphase Energy System continuously monitors the aggregate exported power at the point of measurement, that is, at the Consumption CTs or IQ Meter Collar, and controls the power produced from the PV and battery system to keep the exported power below the limit set by the installer. Aggregate power export limit can be supported in both configurations: grid-tied configuration (Solar + Battery or Solar only) and grid-forming configuration (Solar + Battery). For all supported SKUs with aggregate power export limit, see Enphase Power Control in a grid-tied Enphase Energy System on page 4. 5.4.1 Aggregate power export limit in the grid-tied configuration In this configuration, the aggregate export power (Wexport) to the utility grid is monitored through the Consumption CTs placed on the utility/grid side of the main panel. The power produced by the PV and/or battery system is controlled appropriately to keep the Wexport less than or equal to the set limit. The following figure shows the aggregate power export limit in grid-tied and grid-forming configurations, respectively. Enphase Power Control features 38 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Main panel (Back-fed panel) IQ Series Microinverters IQ EV Charger Connect to LC CTs/Cons CTs Connector N N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button Main DER breaker AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner controller Board ( C C B ) Integrated Production CT Integrated Battery CTs Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Connect to EVSE CT connector on the gateway Utility meter Grid IQ Battery IQ Battery Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D CT9, CT10 (L1,L2) Consumption CTs Aggregate Power Export Limit Integrated Backfeed CTs Additional loads 11 8Home loads Figure 10: Aggregate power export limit in the grid-tied configuration 5.4.2 Aggregate power export limit in the grid-forming configuration In this configuration, the aggregate export power (Wexport) to the utility grid is monitored by the Consumption CTs placed between the main panel and the utility meter. The power produced by the PV and/or battery system is controlled appropriately to keep Wexport less than or equal to the set limit. Enphase Power Control features 39 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN IQ EV Charger N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner Controller Board (CCB) Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2)IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D N Grid Backed up home loads Non-backup heavy loads IQ BatteryIQ Series Microinverters IQ Battery Connect to EVSE CT connector on the gateway Integrated Battery CTs Integrated Production CT Integrated Consumption CTs Aggregate Power Export Limit Main DER breaker Integrated Backfeed CTs 11 Main-meter combo with IQ Meter Collar behind the utility meter (back-fed panel) Figure 11: Aggregate power export limit in grid-forming configuration, Consumption CTs placed between the main service breaker and the meter 5.4.3 Compliance with regulations Utilities in certain geographies require solar energy systems to limit their aggregate export power sent back to the utility grid. In such regions, the Enphase installers can configure the aggregate export power limit equal to or below the level required by the utility using the Enphase Installer App or Enphase Installer Portal. The Enphase Energy System automatically curtails PV production to ensure compliance with the local jurisdiction by adhering to the set aggregate power export limit. Enphase Power Control features 40 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN The aggregate power export limit feature set by the installer during commissioning overrides the power export limit set in the specific Enphase grid profile; that is, when an aggregate power export limit is entered by the installer in the Enphase Installer App, the power export limit present in the grid profile is not utilized. NOTE: Power export limiting works on an aggregate basis for all phases by default. 5.4.4 Failure modes and resolution Table 6: Failure modes and resolution Failure mode Resolution mechanism One or more microinverters failed or stopped communicating with the IQ Gateway If the IQ Gateway loses communication with the PV microinverter for more than 10 seconds, the PV microinverter automatically curtails its output current to the static safe limit (0 Watts). Consumption CTs or IQ Meter Collar not reporting the correct value or missing Consumption CTs/IQ Meter Collar The PV production from each of the microinverters automatically defaults to the safe limit (0 Watts). IQ Batteries move to an idle state (neither charge nor discharge). PCS controller or IQ Gateway failure If the PCS controller or IQ Gateway fails, the PV production curtails its output current to the static safe limit (0 Watts) within 30 seconds of losing communication. IQ Batteries move to Idle state (neither charge nor discharge). 5.4.5 Configuring aggregate power export limit feature through the Enphase Installer App Under System Details, go to Site Configuration > PCS Export Limiting > Aggregate Power Export Limit. On the Configuration Details screen, input the Aggregate Power Export Limit (W) and tap Next: PIM Configuration to enable the feature, as shown in the following figure. Enphase Power Control features 41 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.4.6 Configuring aggregate PEL feature through the Enphase Installer Portal Go to Systems > Activations > Configuration > PCS Based Limiting > Aggregate Power Export Limit > Enable. The following figure shows the configuration screen of the Enphase Power Control feature. On the Configuration screen, input the Aggregate Power Export Limit (in W) and tap Enable to enable the Enphase Power Control feature. Enphase Power Control features 42 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.5 NEM Integrity Mode NEM Integrity Mode ensures that the power exported by the Enphase Energy System across all phases —i.e., the aggregate power—to the grid does not exceed the power being produced by the existing PV system. The Enphase Energy System continuously monitors the aggregate exported power at the point of measurement—either the Consumption CTs or the IQ Meter Collar—and controls the power produced by the PV and Battery system to keep the exported power below the limit set by the installer. NOTE: When NEM Integrity Mode is enabled, the ESS mode must not be set to Export-only, as the system will not export beyond the point of common coupling (PCC), i.e., the grid. NEM Integrity Mode is supported in both grid-tied configurations (Solar + Battery or Solar-only) and grid-forming configurations (Solar + Battery). For all supported SKUs with aggregate power export limits, see Enphase Power Control in a grid-tied Enphase Energy System on page 4. 5.5.1 NEM Integrity Mode in grid-tied configuration In this configuration, the aggregate export power (Wexport) to the utility grid is monitored through the Consumption CTs placed on the utility/grid side of the main panel. The power produced by the PV and/or Battery system is controlled accordingly to ensure that Wexport is less than or equal to the power measured by the paralleled Consumption CTs on the existing PV system. The following figure illustrates the aggregate power export limit in grid-tied configurations. Enphase Power Control features 43 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Main panel (Back-fed panel) IQ Series Microinverters IQ EV Charger Connect to LC CTs/Cons CTs Connector N N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button Main DER breaker AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner controller Board ( C C B ) Integrated Production CT Integrated Battery CTs Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2) IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Utility meter Grid IQ Battery IQ Battery Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D CT9, CT10 (L1,L2) Consumption CTs Paralleled Consumption CTs NEM Integrity Mode Integrated Backfeed CTs 8Home loads Existing AC Coupled PV System CT11, CT12 L1, L2 Connect to LC CTs/Cons CTs connector 8 Figure 12: NEM Integrity Mode in grid-tied configuration 5.5.2 NEM Integrity Mode in grid-forming configuration In this configuration, the aggregate export power (Wexport) to the utility grid is monitored by the IQ Meter Collar, which is installed between the main panel and the utility meter. The power produced by the PV and/or battery system is regulated to ensure that Wexport remains less than the power generated by the existing PV system, as measured by the integrated load control CTs in the IQ Combiner 6C. Enphase Power Control features 44 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN IQ EV Charger N13 RS+GNDRS- NO NC C EIP comm. LED USB1 USB2 RSD LED Status LED Reset button AP mode LED AP mode button Power production LED Device comm. LED Device scan button Backfeed lugs with DER relay PV bus DER bus DER centre IQ PV2 IQ PV3 IQ PV1 11 _ N 3 4 12 A1 5 6 7 8 910 A2 Combiner Controller Board (CCB) Gateway 1 2 3 4 D 1 2 3 4 D CT8(L2)IQ PV4 IQ B2 IQ B1 IQ EVC PVA PF CT2, CT3 CT1 CT4, CT5 CT(L1)CT(L1)CT(L2)CT (L2) IQ Combiner 6C Load Controller B1 LCB CT6, CT7 1 1 2 3 4 D 2 1 2 3 4 D N Grid Backed up Home loads IQ BatteryIQ Series Microinverters IQ Battery Integrated Battery CTs Integrated Production CT Integrated Consumption CTs Main DER breaker Integrated Backfeed CTs Main-meter combo with IQ Meter Collar behind the utility meter (back-fed panel) Existing AC Coupled PV System NEM Integrity Mode Figure 13: NEM Integrity Mode in grid-forming configuration – IQ Meter Collar placed between the main service breaker and the meter 5.5.3 Compliance with regulations In California, Enphase installers can configure the NEM Integrity Mode required by the utility using the Enphase Installer App or the Enphase Installer Portal. The Enphase Energy System automatically curtails PV and battery production to ensure compliance with local jurisdictional requirements. NEM Integrity Mode is certified under UL 3141 v2 and meets the performance requirements of <2-second response time and <10-second settling time (i.e., time to reach steady state), making it compliant with Rule 21 for Non-Export systems. NOTE: NEM Integrity Mode operates on an aggregate basis across all phases. Enphase Power Control features 45 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.5.4 Failure modes and resolution Table 7: Failure modes and resolution mechanisms Failure mode Resolution mechanism One or more microinverters failed or stopped communicating with the IQ Gateway If the IQ Gateway loses communication with a PV microinverter for more than 30 seconds, the microinverter automatically curtails its output current to the static safe limit (0 watts). Consumption CTs or IQ Meter Collar not reporting correct values, or missing Consumption CTs/IQ Meter Collar PV production from each microinverter automatically defaults to the safe limit (0 watts). IQ Batteries transition to an idle state (neither charging nor discharging). PCS controller or IQ Gateway failure If the PCS controller or IQ Gateway fails, PV production curtails to the static safe limit (0 watts) within 30 seconds of losing communication. IQ Batteries move to an idle state (neither charging nor discharging). 5.5.5 Configuring NEM Integrity Mode through the Enphase Installer App NEM Integrity Mode is automatically configured through the Enphase Installer App in the following cases: •For a non-Enphase existing system: During initial site setup, select NEM-Multitariff 0-Export (Add- on) under Grid Connection Type. •For an existing Enphase PV system: When adding an additional IQ Gateway or IQ Combiner 6 under Devices, an option to select NEM-MT is shown. In either case, NEM Integrity Mode is automatically enabled by setting a zero-export limit for the new system, ensuring that the overall system never exports more power than the existing PV system produces. The following figure shows the configuration screen where NEM Integrity Mode is set using either method. Enphase Power Control features 46 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 5.5.6 Configuring NEM Integrity Mode through the Enphase Installer Portal Go to Systems > Activations > Details > System Information > Grid Connection Details. The following figure shows the configuration screen for this feature. Enphase Power Control features 47 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN 6. Revision history Revision Date Description TEB-00269-2.0 August 2025 Added information on NEM Integrity Mode. TEB-00269-1.0 June 2025 Initial release. Revision history 48 © 2025 Enphase Energy Inc. All rights reserved. August 2025 TEB-00269-2.0-EN Product specifications Eaton DG221URB Catalog Number: DG221URB Eaton General duty non-fusible safety switch, single-throw, 30 A, 240 V, NEMA 3R, Rainproof, Painted galvanized steel, Two-pole, Two-wire General specifications Eaton general duty non-fusible safety switch DG221URB 782113120232 6.88 in 10.81 in 6.38 in 6 lb Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first. NEC 230.62 (C) Compliant Barrier UL Listed WARNING! Switch is not approved for service entrance unless a neutral kit is installed. Product Name Catalog Number UPC Product Length/Depth Product Height Product Width Product Weight Warranty Compliances Certifications Catalog Notes Eaton Corporation plc Eaton House 30 Pembroke Road Dublin 4, Ireland Eaton.com © 2023 Eaton. All Rights Reserved. Eaton is a registered trademark. All other trademarks are property of their respective owners.Eaton.com/socialmedia Product specifications General duty safety switch Painted galvanized steel Non-fusible, single-throw Non-fusible 2 NEMA 3R 240V 30A Two-pole Resources Eaton's Volume 2—Commercial Distribution Switching Devices Flex Center Double Up on Safety Eaton Specification Sheet - DG221URB Product Category Enclosure material Type Fuse configuration Number of wires Enclosure Voltage rating Amperage Rating Number Of Poles Catalogs Multimedia Specifications and datasheets BrandGuard Vents KEY SPECIFICATION 8" x 14" Foundation Vent Model # FV2021413 13.5 1I 1 r e TOP VIEW �I 13.5 12-' SIDE VIEW Foundation Size NFVA Provided Flanges Flange Model Weight g Vents W x L (Sq In) Available Definition FV2021-FF 8" x 14" 34 Flange Front Flange Front 3.SIbs Custom sizes/shapes/materials AVAILABLE BENEFITS: 6 Product Spec Sheet • Safety vents that are used in areas prone to wildfires, wind driven rain, or wind driven snow. • Triple Protection (Patented) • Overlapping baffles resist embers, flames and radiant heat • Heat activated Intumescent Strips expand & seal openings during extreme fire conditions • 1/16" mesh on back side of vent for additional ember and bug protection • WUI Approved for use throughout California and beyond (Calfire BMLApproval#8165-2232:0502) • Tested and Listed to ASTM E2886/2912 • 1 hour Fire Rated per ASTM E119 • Air Flows through normally • Also Prevents Rodent Entry • Easy to Install, Retrofit and Paint STANDARD MATERIALS ASTM A653/A653M- G90 hot dipped galvanized steel, 26GA ASTM D9092- mill phosphatized coating for painting. IF BONDERIZED ASTM b370- Sheet Copper, 16oz and 20oz IF GALVANIZED .0625 x.0625 hot dipped galvanized 23ga wire mesh Installation: Install like any other similar Ventilator Product on the market. CITY OF SANTA ANA Planning and Building Agency Approved FOR PERMIT ISSUANCE Master ID: Date: To Whom it may concern, This letter is to certify that I have contracted with and authorized Semper Solaris to submit for permits and ESS system on our home at 1113 N Wright St Santa Ana CA 92701. Thank you, Justin Geiser Docusign Envelope ID: AD47E7DC-8131-406D-AC81-4CF9ADBE5D6A 4/21/2026