HomeMy WebLinkAbout122 N Bewley St - PlanREV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: CS-01DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
AERIAL MAP VICINITY MAP
HOUSE VIEW
COVER SHEET
LAWRENCE REY - 2.400kW DC, 1.740kW AC, 2.159kW CEC AC RATING
APPLICABLE CODES
· ELECTRIC CODE:CEC 2022
· FIRE CODE:CFC 2022
· BUILDING CODE:CBC 2022
· RESIDENTIAL CODE:CRC 2022
SYSTEM SIZE:
MODULE:
INVERTER:
2400W DC, 1740W AC, 2159W CEC AC
RATING
SCOPE OF WORK
(6)TALESUN SOLAR BIPRO TP7G54M(H)
(400W)
(6)ENPHASE IQ8PLUS-72-2-US (240V) [SI-1]
1. MODULES ARE LISTED UNDER UL 1703 / 61730 AND CONFORM TO THE STANDARDS.
2. INVERTERS ARE LISTED UNDER UL 1741 AND CONFORM TO THE STANDARDS.
3. DRAWINGS ARE DIAGRAMMATIC, INDICATING GENERAL ARRANGEMENT OF THE PV SYSTEM AND THE ACTUAL SITE
CONDITION MIGHT VARY.
4. WORKING CLEARANCES AROUND THE NEW PV ELECTRICAL EQUIPMENT WILL BE MAINTAINED IN ACCORDANCE WITH
CEC 110.26.
5. ALL GROUND WIRING CONNECTED TO THE MAIN SERVICE GROUNDING IN MAIN SERVICE PANEL/ SERVICE EQUIPMENT.
6. ALL CONDUCTORS SHALL BE 600V, 90°C STANDARD COPPER UNLESS OTHERWISE NOTED.
7. WHEN REQUIRED, A LADDER SHALL BE IN PLACE FOR INSPECTION IN COMPLIANCE WITH OSHA REGULATIONS.
8. THE SYSTEM WILL NOT BE INTERCONNECTED BY THE CONTRACTOR UNTIL APPROVAL FROM THE LOCAL JURISDICTION
AND/OR THE UTILITY.
9. ROOF ACCESS POINT SHALL BE LOCATED IN AREAS THAT DO NOT REQUIRE THE PLACEMENT OF GROUND LADDERS
OVER OPENINGS SUCH AS WINDOWS OR DOORS, AND LOCATED AT STRONG POINTS OF BUILDING CONSTRUCTION
WHERE THE ACCESS POINT DOES NOT CONFLICT WITH OVERHEAD OBSTRUCTIONS SUCH AS TREES, WIRES OR SIGNS.
10. PV ARRAY COMBINER/JUNCTION BOX PROVIDES TRANSITION FROM ARRAY WIRING TO CONDUIT WIRING.
GENERAL NOTES
BRANCH DETAILS:
1X6 ENPHASE BRANCH
RISK CATEGORY- ll
BASIC WIND SPEED = 95 MPH @ 3-SEC GUST
GROUND SNOW LOAD = 0 PSF
DESIGN CRITERIA
PROJECT WINDSPEED DETERMINED USING THE
ASCE 7 STANDARD UNLESS DIRECTED OTHERWISE
BY LOCAL JURISDICTION AMENDMENTS
ROOF AREA CALCULATION
TOTAL ARRAY AREA = 126.14 sq.ft
TOTAL ROOF AREA = 777.3 sq.ft
% ARRAY AREA IN ROOF = 16.23 %
SHEET CATALOG
SHEET REVISION DESCRIPTION
CS-01 COVER SHEET
CS-02 GENERAL NOTES
E-01 SITE PLAN
S-01 MOUNTING DETAILS
S-02 STRUCTURAL DETAILS
E-02 SINGLE LINE DIAGRAM
E-03 ELECTRICAL CALCULATIONS
E-04 EQUIPMENT ELEVATION VIEW
PL-01 PLACARDS
SS SPEC SHEET(S)
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SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
Signed 6/12/2024
A
Bldg#: 101120258
Elec#: 20183560
***The scope of the plans is for the installation of the solar photovoltaic system only and
the approval is subject to compliance with all applicable city and state codes and
regulations regarding construction. The approval of the plans does not constitute any
certification of the accuracy, completeness, or building permit status of the existing
buildings and structures as shown. ***
122 N Bewley St
8/6/2024
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: CS-02DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
GENERAL NOTES
INSTALLATION NOTES:
1. STRUCTURAL ROOF MEMBER LOCATIONS ARE ESTIMATED AND SHOULD BE LOCATED AND VERIFIED BY THE CONTRACTOR WHEN LAG BOLT PENETRATION OR MECHANICAL ATTACHMENT TO THE STRUCTURE IS REQUIRED.
2. ROOFTOP PENETRATIONS FOR SOLAR RACKING WILL BE COMPLETED AND SEALED WITH APPROVED SEALANT PER CODE BY A LICENSED CONTRACTOR.
3. LAGS MUST HAVE A MINIMUM 2.5" THREAD EMBEDMENT INTO THE STRUCTURAL MEMBER.
4. ALL PV RACKING ATTACHMENTS SHALL BE STACKED BY ROW BETWEEN THE ROOF FRAMING MEMBERS AS NECESSARY.
5. ROOF MOUNTED STANDARD RAIL REQUIRES ONE THERMAL EXPANSION GAP FOR EVERY RUN OF RAIL GREATER THAN 40'.
6. ALL CONDUCTORS AND CONDUITS ON THE ROOF SHALL BE MINIMUM 7/8" ABOVE THE ROOF SURFACE (INCLUDING CABLES UNDERNEATH MODULES AND RACKING).
7. THE PV INSTALLATION SHALL NOT OBSTRUCT ANY PLUMBING, MECHANICAL OR BUILDING ROOF VENTS.
8. ALL SOLAR PANEL ARRAY COMPONENTS SHALL BE INSTALLED PER THE MANUFACTURER'S APPROVED INSTALLATION SPECIFICATIONS.
9. THE EXISTING BUILDINGS STRUCTURE SHALL BE VERIFIED AS PROPERLY CONSTRUCTED AND MAINTAINED IN GOOD CONDITION. NO ALLOWANCE HAS BEEN MADE IN THESE DRAWINGS FOR ANY EXISTING DEFICIENCY IN DESIGN, MATERIAL,
CONSTRUCTION, OR LACK OF MAINTENANCE FOR THE EXISTING STRUCTURE OR PROPOSED EQUIPMENT. THE CONTRACTOR SHALL BE RESPONSIBLE FOR FIELD VERIFYING EXISTING CONDITIONS, PROPER FIT, AND CLEARANCES IN THE FIELD.
10. WATERPROOFING AROUND THE ROOF PENETRATIONS IS THE RESPONSIBILITY OF CONTRACTOR/INSTALLER.
11.MISCELLANEOUS ITEMS NOT EXPLICITLY LISTED OR IDENTIFIED IN THESE DRAWINGS HAVE NOT BEEN DESIGNED. IT IS RECOMMENDED THAT MATERIAL OF SUITABLE SIZE STRENGTH TO BE OBTAINED FROM A REPUTABLE MANUFACTURER
FOR MISCELLANEOUS ITEMS.
12. IF ANY CONDITION THROUGHOUT THE ASSOCIATED REPORT OR PERMIT DRAWINGS IS NOT ALSO REPRESENTED ON-SITE, CONTRACTOR SHALL NOTIFY THE ENGINEER OF RECORD OF ANY DISCREPANCIES AND RECEIVE WRITTEN APPROVAL
FROM THE ENGINEER OF RECORD BEFORE PROCEEDING WITH INSTALLATION.
13.CONTRACTOR TO PROVIDE MINIMUM 1/4" GAP BETWEEN ALL SOLAR PANELS.
ROOF ACCESS PATHWAYS AND SETBACKS:
1205.2.1 SOLAR PHOTOVOLTAIC (PV) SYSTEMS FOR GROUP R-3 BUILDINGS
SOLAR PHOTOVOLTAIC (PV) SYSTEMS FOR GROUP R-3 BUILDINGS SHALL COMPLY WITH SECTIONS 1205.2.1.1 THROUGH 1205.2.3.
EXCEPTIONS:
1.THESE REQUIREMENTS SHALL NOT APPLY TO STRUCTURES DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE CALIFORNIA RESIDENTIAL CODE.
2. THESE REQUIREMENTS SHALL NOT APPLY TO ROOFS WITH SLOPES OF 2 UNITS VERTICAL IN 12 UNITS HORIZONTAL (16.7-PERCENT SLOPE) OR LESS.
1205.2.1.1 PATHWAYS TO RIDGE
NOT FEWER THAN TWO 36-INCH-WIDE (914 MM) PATHWAYS ON SEPARATE ROOF PLANES, FROM LOWEST ROOF EDGE TO RIDGE, SHALL BE PROVIDED ON ALL BUILDINGS. NOT FEWER THAN ONE PATHWAY SHALL BE PROVIDED ON THE STREET
OR DRIVEWAY SIDE OF THE ROOF. FOR EACH ROOF PLANE WITH A PHOTOVOLTAIC ARRAY, NOT FEWER THAN ONE 36-INCH-WIDE (914 MM) PATHWAY FROM LOWEST ROOF EDGE TO RIDGE SHALL BE PROVIDED ON THE SAME ROOF PLANE AS THE
PHOTOVOLTAIC ARRAY, ON AN ADJACENT ROOF PLANE OR STRADDLING THE SAME AND ADJACENT ROOF PLANES.
1205.2.1.2 SETBACKS AT RIDGE
FOR PHOTOVOLTAIC ARRAYS OCCUPYING 33 PERCENT OR LESS OF THE PLAN VIEW TOTAL ROOF AREA, A SETBACK OF NOT LESS THAN 18 INCHES (457 MM) WIDE IS REQUIRED ON BOTH SIDES OF A HORIZONTAL RIDGE. FOR PHOTOVOLTAIC
ARRAYS OCCUPYING MORE THAN 33 PERCENT OF THE PLAN VIEW TOTAL ROOF AREA, A SETBACK OF NOT LESS THAN 36 INCHES (457 MM) WIDE IS REQUIRED ON BOTH SIDES OF A HORIZONTAL RIDGE.
1205.2.1.3 ALTERNATIVE SETBACKS AT RIDGE
WHERE AN AUTOMATIC SPRINKLER SYSTEM IS INSTALLED WITHIN THE DWELLING IN ACCORDANCE WITH SECTION 903.3.1.3, SETBACKS AT THE RIDGE SHALL CONFORM TO ONE OF THE FOLLOWING:
1.FOR PHOTOVOLTAIC ARRAYS OCCUPYING 66 PERCENT OR LESS OF THE PLAN VIEW TOTAL ROOF AREA, A SETBACK OF NOT LESS THAN 18 INCHES (457 MM) WIDE IS REQUIRED ON BOTH SIDES OF A HORIZONTAL RIDGE.
2.FOR PHOTOVOLTAIC ARRAYS OCCUPYING MORE THAN 66 PERCENT OF THE PLAN VIEW TOTAL ROOF AREA, A SETBACK OF NOT LESS THAN 36 INCHES (914 MM) WIDE IS REQUIRED ON BOTH SIDES OF A HORIZONTAL RIDGE.
1205.2.2 EMERGENCY ESCAPE AND RESCUE OPENINGS: PANELS AND MODULES INSTALLED ON GROUP R-3 BUILDINGS SHALL NOT BE PLACED ON THE PORTION OF A ROOF THAT IS BELOW AN EMERGENCY ESCAPE AND RESCUE OPENING. A
PATHWAY OF NOT LESS THAN 36 INCHES (914 MM) WIDE SHALL BE PROVIDED TO THE EMERGENCY ESCAPE AND RESCUE OPENING.
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
Signed 6/12/2024
A
122 N Bewley St
8/6/2024
A A A A
UM AC CB
A
A
JB
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: E-01DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
PROPERTY LINE
DRIVEWAY
SCALE:3/32" = 1'-0"SITE PLAN
NOTE: PV SYSTEM TO BE INSTALLED ON
ACCESSORY DWELLING UNIT.
LAWRENCE REY - 2.400kW DC, 1.740kW AC, 2.159kW CEC AC RATING
SYSTEM SIZE:
MODULE:
INVERTER:
2400W DC, 1740W AC, 2159W CEC AC
RATING
SCOPE OF WORK
(6)TALESUN SOLAR BIPRO TP7G54M(H)
(400W)
(6)ENPHASE IQ8PLUS-72-2-US (240V) [SI-1]
BRANCH DETAILS:
1X6 ENPHASE BRANCH
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
137'
137'
49'
2'-11"
2'-11"
2'-9"
100'-5"
RESIDENCE
PHOTOVOLTAIC ARRAY ON
ACCESSORY DWELLING UNIT
CONDUIT RUN
(N) ENPHASE IQ COMBINER 5 (EXTERIOR)
(N) AC DISCONNECT (EXTERIOR)
GATE WITH FENCE
GATE
PERIMETER FENCE
(E) UTILITY METER WITH (E) MAIN
SERVICE PANEL (EXTERIOR)
ACCESSORY DWELLING UNIT
NO
R
T
H
B
E
W
L
E
Y
S
T
R
E
E
T
STRING CONFIGURATION
BRANCH DETAILS
A 6 MICROINVERTERS
TOTAL NUMBER OF STORY: 1 NOTE: ALL DETACHED STRUCTURES MUST BE MINIMUM OF 5FT
FROM THE PROPERTY LINE.
(N) JUNCTION BOX (ROOF
MOUNTED)
Signed 6/12/2024
ADU
122 N. BEWLEY ST.
UNIT 2
MAIN HOUSE
122 N. BEWLEY ST.
A
122 N Bewley St
8/6/2024
A A A A A
A
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: S-01DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
ALUMINUM RAILS
2 X 4 PRE-FABRICATED
TRUSSES @ 2'-0" SPACING
ARRAY MP-01
SCALE:1/8" = 1'-0"
MOUNTING DETAILS
S.NO AZIMUTH PITCH NO. OF
MODULES
ARRAY AREA
(SQ. FT.)
ROOF
EXPOSURE
FRAME
SPACING
MAX RAIL
SPANROOF TYPE ATTACHMENT FRAME TYPE
MP-01 180° 18°6 126.14 COMPOSITION SHINGLE FLEX FOOT ATTIC PRE-FABRICATED TRUSSES 2'-0"
OVER
HANG
FRAME
SIZE
2 X 4 6'-0" 2'-0"
SITE INFORMATION
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
STRING CONFIGURATION
BRANCH DETAILS
A 6 MICROINVERTERS33'-8"
17'-2"
7'-3"18'-7"7'-9"
9"
11'-4"
5'-1"
6'
NOTE: PENETRATIONS ARE STACKED
TOTAL NUMBER OF ATTACHMENTS: 12
TOTAL NUMBER OF STORY : 1
Signed 6/12/2024
ADU
122 N. BEWLEY ST.
UNIT 2
A
122 N Bewley St
8/6/2024
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: S-02DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
STRUCTURAL DETAILS
MODULE
END CLAMPMID CLAMPMODULE
MID CLAMP
ASSEMBLY
MODULE
FRAME
GROUNDING MID-CLAMP SCALE: NTS
K2 SYSTEMS CROSSRAIL 44-X
RAIL
K2 CROSSRAIL STRUCTURAL RAIL CONNECTOR
T-BOLT SCREW
SCALE: NTS
MODULE TO MODULE & MODULE TO RAIL
T-BOLT SCALE: NTS
GROUNDING LUG
GROUNDING DETAILS
RAIL TO RAIL
K2 SYSTEMS
CROSSRAIL 44-X RAIL
DEAD LOAD CALCULATIONS
BOM QUANTITY LBS/UNIT
TOTAL
WEIGHT
(LBS)
MODULES 6 47.4 284.4
MID-CLAMP 8 0.3 2.4
END-CLAMP 8 0.31 2.48
RAIL LENGTH 46 0.47 21.62
SPLICE BAR 2 0.65 1.3
FLEX FOOT 12 0.7 8.4
MICROINVERTERS 6 2.38 14.28
TOTAL WEIGHT OF THE SYSTEM (LBS)334.88
TOTAL ARRAY AREA ON THE ROOF (SQ. FT.)126.14
WEIGHT PER SQ. FT.(LBS)2.65
WEIGHT PER PENETRATION (LBS)27.91
(1) STAINLESS STEEL 5/16" LAG
SCREW 2.5" MIN EMBEDMENT
K2 FLEX FOOT
(E) FRAMING SEE SHEET S-01
(E) COMPOSITION SHINGLE ROOF
(E) ROOF DECKING
6" MAX
K2 CROSSRAIL 44-X
MODULE
SCALE:NTS
ATTACHMENT DETAIL-K2 FLEX FOOT
ROOF FRAMING DETAILS
COMPOSITION SHINGLE ROOF
2 X 4 PRE-FABRICATED
TRUSSES
@2'-0"SPACING
MODULE
LOAD BEARING WALL
SCALE:NTS
5/16" X 3.5" LAG SCREW
1 LAG SCREW PER ATTACHMENT
MID-CLAMP AND END-CLAMP ASSEMBLY
MODULE DATA
TALESUN SOLAR BIPRO TP7G54M(H) (400W)
MODULE DIM 67.8"x44.65"x1.18"
LAG SCREW (1) 5/16"x3.5":2.5" MIN EMBEDMENT
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
Signed 6/12/2024
A
122 N Bewley St
8/6/2024
(N)JUNCTION
BOX DC CONDUCTORS
AC CONDUCTORS
MICROINVERTER
(1) BRANCH OF (6) MICROINVERTERS
(N)(6)TALESUN SOLAR BIPRO TP7G54M(H) (400W) MODULES WITH
(N)(6)ENPHASE IQ8PLUS-72-2-US (240V) [SI-1]
(1)
(1)
15A
20A
ENPHASE IQ COMBINER 5
X-IQ-AM1-240-5
120/240V NEMA 3R INSTALL
20A 2P PV BREAKER
15A 2P BREAKER FOR IQ
GATEWAY (ONLY FOR
SOLAR, NO LOADS TO BE
ADDED)
(N)ENPHASE IQ
COMBINER 5
SQUARE D DU221RB
AC DISCONNECT NON
FUSED 30A, NEMA 3R,
120/240V, 2P
(N)30A AC
DISCONNECT
UTILITY
GRID
EXISTING 120/240V 1PH 60HZ
METER#:
SCE-SOUTHERN
CALIFORNIA EDISON
222013-565617
M (E
)
1
0
0
A
M
A
I
N
BR
E
A
K
E
R
(E)100A END FED MAIN
PANEL
(N)20A
2P PV BREAKER
PV BREAKER AT THE
OPPOSITE END OF
BUSBAR
(E) GROUND
ELECTRODE
G
N
1233
IQ GATEWAY
14 AWG CU
WIRE
(PER CEC
240.4(D))
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: E-02DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
SINGLE LINE DIAGRAM
DC SYSTEM SIZE- 2400W, AC SYSTEM SIZE - 1740W, CEC AC RATING - 2159W
CONDUCTOR AND CONDUIT SCHEDULE
TAG ID CONDUIT SIZE CONDUCTOR NEUTRAL GROUND
1 NONE (2) 12 AWG ENPHASE Q CABLE PER
BRANCH CIRCUIT NONE (1) 6 AWG BARE COPPER
2 3/4" EMT (2) 10 AWG THHN/THWN-2 NONE (1) 6 AWG THHN/THWN-2
3 3/4" EMT (2) 10 AWG THHN/THWN-2 (1) 10 AWG THHN/THWN-2 (1) 6 AWG THHN/THWN-2
NOTE:
1. EACH MICROINVERTER IS RAPID SHUTDOWN COMPLIANT.
2. ELECTRODES UNLESS BURIED OR ENCASED, ELECTRODE
CONNECTIONS MUST BE ACCESSIBLE.
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
A
122 N Bewley St
8/6/2024
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: E-03DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
ELECTRICAL NOTES
ELECTRICAL CALCULATIONS
DC SYSTEM SIZE- 2400W, AC SYSTEM SIZE - 1740W, CEC AC RATING - 2159W
ENPHASE IQ8PLUS-72-2-US (240V)
[SI-1]
MICROINVERTER SPECIFICATIONS
MODEL
POWER RATING 290W
MAX. CONTINUOUS OUTPUT CURRENT 1.21A
CEC WEIGHTED EFFICIENCY 97%
MAX NO OF MICROINVERTERS / BRANCH 13
MAX DC VOLTAGE 60V
12.89 AMAX POWER CURRENT:Imp
13.78 ASHORT CIRCUIT CURRENT:Isc
31.05 VMAX POWER VOLTAGE:Vmp
37 VOPEN CIRCUIT VOLTAGE:Voc
400 WMODULE POWER @ STC
MODEL
MODULE SPECIFICATION
TALESUN SOLAR BIPRO
TP7G54M(H) (400W)
OCPD CALCULATION
ALLOWABLE BACKFEED:
MAIN PANEL RATING = 100 A
MAIN BREAKER RATING = 100 A
120% RULE: = ((MAIN PANEL RATING * 1.2) - MAIN BREAKER RATING)
= ((100 A*1.2)-100 A)
= 20 A
ALLOWABLE BACKFEED = 20 A
INVERTER OVERCURRENT PROTECTION:
INVERTER OVERCURRENT PROTECTION = (MICROINVERTER O/P CURRENT * # OF MICROINVERTERS
* CONTINUOUS LOAD(1.25))
= (1.21 * 6 *1.25)
= 9.08 A
PV BREAKER = 20 A ≥ 9.08 A
ALLOWABLE BACKFEED 20 A ≥ 20 A OF PV BREAKER
THE DESIGNED INTERCONNECTION MEETS THE 705.12(B)(3)(2) REQUIREMENTS.
WIRE SIZE CALCULATIONS
= 38.4 A
= 9.08 A
= 38.4 A
= 9.08 A
= 28.8 A
= 9.08 A
TAG 1: (AC)
REQUIRED CONDUCTOR AMPACITY (1.21 * 6 * 1.25)
CORRECTED AMPACITY CALCULATION (0.96 * 1 * 30)
9.08A < 28.8A
TAG 2: (AC)
REQUIRED CONDUCTOR AMPACITY (1.21 * 6 * 1.25)
CORRECTED AMPACITY CALCULATION (0.96 * 1 * 40)
9.08A < 38.4A
TAG 3: (AC)
REQUIRED CONDUCTOR AMPACITY (1.21 * 6 * 1.25)
CORRECTED AMPACITY CALCULATION (0.96 * 1 * 40)
9.08A < 38.4A
AC WIRE SIZING CALCULATIONS BASED ON FOLLOWING EQUATIONS
REQUIRED CONDUCTOR AMPACITY:
INVERTER OUTPUT CURRENT * #OF INVERTERS = MAX CURRENT PER 690.8(A)(1)(e) * 125%
= MAX CURRENT PER 690.8(B)(1)
CORRECTED AMPACITY CALCULATIONS:
DERATED CONDUCTOR AMPACITY PER 690.8(B)(2) = AMPACITY * TEMPERATURE DERATE FACTOR *
CONDUIT FILL DERATE
DERATED CONDUCTOR AMPACITY CHECK: MAX CURRENT PER 690.8(B)(1) < DERATED CONDUCTOR AMPACITY
1. CONDUCTORS EXPOSED TO WET LOCATIONS SHALL BE SUITABLE
FOR USE IN WET LOCATIONS PER CEC 310.10(C).
2. CONDUCTORS EXPOSED TO SUNLIGHT SHALL BE LISTED AS
SUNLIGHT RESISTANT PER CEC 310.10(D).
3. MAXIMUM DC/AC VOLTAGE DROP SHALL BE NO MORE THAN 2%.
4. ALL CONDUCTORS SHALL BE IN CONDUIT UNLESS OTHERWISE
NOTED.
5. BREAKER/FUSES SIZED ACCORDING PER CEC ARTICLE 240.
6. AC GROUNDING ELECTRODE CONDUCTOR (GEC) SIZED PER CEC
250.66.
7. EQUIPMENT GROUNDING CONDUCTOR (EGC) SIZED PER CEC
250.122.
8. AMBIENT TEMPERATURE ADJUSTMENT FACTOR IS BASED ON
TABLE CEC 310.15(B)(1).
9. CURRENT CARRYING CONDUCTOR ADJUSTMENT FACTOR IS BASED
ON CEC 310.15(C)(1).
10. MAX. SYSTEM VOLTAGE CORRECTION IS PER CEC 690.7.
11. CONDUCTORS ARE SIZED PER CEC 310.16 .
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
A
122 N Bewley St
8/6/2024
SOUTH EXTERIOR WALL ELEVATION
M
(E) UTILITY METER WITH
MAIN SERVICE PANEL
(EXTERIOR)
(N) 30A AC
DISCONNECT
(EXTERIOR)
BACKYARD STREET
ENPHASE
(N) ENPHASE IQ
COMBINER 5
(EXTERIOR)
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: E-04DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
EQUIPMENT ELEVATION VIEWSCALE:1/2" = 1'-0"
A
122 N Bewley St
8/6/2024
UM AC CB
JB
REV: A
AHJ: CA-CITY OF SANTA ANA
33.746021, -117.918404
APN: 19818118
DRAFTED BY: HILLARY
NAME: LAWRENCE REY ADDRESS:
122 NORTH BEWLEY STREET UNIT 2,
SANTA ANA, CA 92703
UTILITY: SCE-SOUTHERN
CALIFORNIA EDISON
SCALE: AS NOTED
PRN NUMBER: SMT-98507
PAPER SIZE: 17"X11"SHEET: PL-01DATE: 06/12/2024
DRAWING INFORMATION
CUSTOMER INFORMATION CONTRACTOR INFORMATION
QC'ED BY: SUBHANI
PHONE NUMBER: (951) 536-7794
PLACARDS
SYSTEM UTILIZES MICROINVERTERS LOCATED UNDER EACH SOLAR MODULE
122 NORTH BEWLEY STREET UNIT 2, SANTA ANA, CA 92703
INSTALLED ON: DC DISCONNECT, INVERTER
[TO BE USED WHEN INVERTER IS UNGROUNDED]
! WARNING!
ELECTRIC SHOCK HAZARD
THE DC CONDUCTORS OF THIS PHOTOVOLTAIC
SYSTEM ARE UNGROUNDED AND MAY BE
ENERGIZED
INSTALLED ON: AC DISCONNECT, POINT OF
INTERCONNECTION
APPLICABLE CODE(S): CEC 690.13
! WARNING!
ELECTRIC SHOCK HAZARD
DO NOT TOUCH TERMINALS
TERMINALS ON BOTH LINE AND LOAD SIDES
MAY BE ENERGIZED IN THE OPEN POSITION
WARNING-ELECTRIC SHOCK HAZARD
NO USER SERVICEABLE PARTS INSIDE
CONTACT AUTHORIZED SERVICE
PROVIDE FOR ASSISTANCE
INSTALLED ON: INVERTER, JUNCTION BOXES(ROOF),
AC DISCONNECT
SOLAR DISCONNECT
INSTALLED ON: DISCONNECT, POINT OF INTERCONNECTION
PER CODE: CEC690.13(B)
! WARNING
DUAL POWER SOURCE SECOND
SOURCE IS PHOTOVOLTAIC
SYSTEM
INSTALLED ON: POINT OF INTERCONNECTION
APPLICABLE CODE(S): CEC 705.12(B)(3-4) AND 690.59
!!
INSTALLED ON: POINT OF INTERCONNECTION
APPLICABLE CODE(S): CEC 705.12(B)(3)(2)
WARNING
POWER SOURCE OUTPUT
CONNECTION
DO NOT RELOCATE THIS
OVER-CURRENT DEVICE
INSTALLED ON: AC DISCONNECT(S), POINT OF
INTERCONNECTION.
APPLICABLE CODE(S): CEC 690.54
RATED AC OPERATING CURRENT
AC NOMINAL OPERATING VOLTAGE
7.26
240
PHOTOVOLTAIC SYSTEM AC DISCONNECT SWITCH
AMPS AC
VAC
CAUTION:MULTIPLE SOURCES
OF POWER
1.PLACARDS SHALL MEET THE
REQUIREMENTS OF ARTICLES 690 AND
705, UNLESS OTHERWISE SPECIFIED
PER LOCAL AHJ REQUIREMENTS.
2.PLACARDS SHALL MEET THE
REQUIREMENTS OF SECTION 110.21(B)
AS REQUIRED AND SHALL COMPLY WITH
ANSI Z535.4-2011, PRODUCT SAFETY
SIGNS AND LABELS.
3.PLACARDS SHALL BE PERMANENTLY
AFFIXED TO THE EQUIPMENT OR WIRING
METHOD.
4.PLACARDS SHALL BE OF SUFFICIENT
DURABILITY TO WITHSTAND THE
ENVIRONMENT INVOLVED AND SHALL
NOT BE HANDWRITTEN.
5.PLACARDS SHALL NOT COVER
EXISTING MANUFACTURER LABELS.
POWER TO THIS BUILDING IS ALSO
SUPPLIED FROM THE FOLLOWING
SOURCES WITH DISCONNECTS LOCATED
AS SHOWN
NOTES
LABEL LOCATION
SERVICE PANEL
PER CODE: CEC 705.10
!!
TURN RAPID SHUTDOWN
SWITCH TO THE
"OFF" POSITION TO
SHUT DOWN PV SYSTEM
AND REDUCE
SHOCK HAZARD
IN THE ARRAY
SOLAR ELECTRICPV PANELS
SOLAR PV SYSTEM EQUIPPED
WITH RAPID SHUTDOWN
INSTALLED ON: WITHIN 3 FT OF SERVICE
DISCONNECTING MEANS. MIN 3/8" BLACK TEXT ON
YELLOW BACKGROUND & 3/16" BLACK TEXT ON WHITE
BACKGROUND.
APPLICABLE CODE(S): CEC 690.56(C)
RAPID SHUTDOWN
SWITCH FOR SOLAR PV
SYSTEM
INSTALLED ON:RAPID SHUTDOWN SWITCH
APPLICABLE CODE(S): CEC 690.56(C)(2)
INSTALLED ON: COMBINER PANEL
DEDICATED PHOTOVOLTAIC SYSTEM
COMBINER PANEL NO LOAD SHALL BE
ADDED TO THIS PANEL
SOLARMAX RENEWABLE ENERGY
PROVIDER INC.
3080 12TH ST, RIVERSIDE, CA 92507
TEL: (951) 300-0788
LICENSE NUMBER&
CLASS:972048/C-46
David Bingwen Hsu
David Bingwen Hsu, Lic. Holder
(N) ENPHASE IQ COMBINER 5 (EXTERIOR)
(N) AC DISCONNECT (EXTERIOR)
(E) UTILITY METER WITH (E) MAIN
SERVICE PANEL (EXTERIOR)
RESIDENCE
PHOTOVOLTAIC ARRAY ON
ACCESSORY DWELLING UNIT
ACCESSORY DWELLING UNIT
(N) JUNCTION BOX (ROOF MOUNTED)
A
A
122 N Bewley St
8/6/2024
76 North Meadowbrook Drive
Scott E. Wyssling, PE Alpine, UT 84004
Coleman D. Larsen, SE, PE office (201) 874-3483
Gregory T. Elvestad, PE swyssling@wysslingconsulting.com
June 12, 2024
Illumine International Inc
1320 Arrow Point Drive
Suite 501 #163
Cedar Park, TX 78613
Re: Engineering Services
Rey Residence
122 North Bewley Street Unit 2,
Santa Ana, CA 2.400 kW System
A. Site Assessment Information
B. Description of Structure:
Roof Framing:wood trusses at 24” on center. All truss members
Roof Material:
Roof Slope:
Attic Access:
Foundation:
C. Loading Criteria Used
•Dead Load
o
o
o
•
o
o
o
•Live Load –
•Ground Snow Load
•Wind Load
o
o
Analysis performed of the existing roof structure utilizing the above loading criteria is in accordance
with the 2022 California Building Code, including provisions allowing existing structures to not
require strengthening if the new loads do not exceed existing design loads by 105% for gravity
elements and 110% for seismic elements. This analysis indicates that the existing framing will
support the additional panel loading without damage, if installed correctly.
122 N Bewley St
8/6/2024
Page 2 of 2
D. Solar Panel Anchorage
1.The solar panels shall be mounted in accordance with the most recent K-2 Systems installation
manual. If during solar panel installation, the roof framing members appear unstable or deflect non-
uniformly, our office should be notified before proceeding with the installation.
2.The maximum allowable withdrawal force for a 5/16” lag screw is 229 lbs per inch of penetration as
identified in the National Design Standards (NDS) of timber construction specifications. Based on
a minimum penetration depth of 2½”, the allowable capacity per connection is greater than the
design withdrawal force (demand). Considering the variable factors for the existing roof framing
and installation tolerances, the connection using one 5/16” diameter lag screw with a minimum of
2½” embedment will be adequate and will include a sufficient factor of safety.
3.Considering the wind speed, roof slopes, size and spacing of framing members, and condition of
the roof, the panel supports shall be placed no greater than 72” on center.
Based on the above evaluation, this office certifies that with the racking and mounting specified, the existing
roof system will adequately support the additional loading imposed by the solar system. This evaluation is in
conformance with the 2022 California Building Code, current industry standards and practice, and is based on
information supplied to us at the time of this report.
Should you have any questions regarding the above or if you require further information do not hesitate to
contact me.
Very truly yours,
Scott E. Wyssling, PE
California License No. 83664
Signed 6/12/2024
122 N Bewley St
8/6/2024
Wyssling Consulting
76 N. Meadowbrook Drive
Alpine, UT 84004
(201) 874-3483
swyssling@wysslingconsulting.com
Existing
Roof Dead Load
2.0 psf Composite Shingle
Rey Residence
122 North Bewley Street Unit 2,
Santa Ana, CA 2.400 kW System
1.6 psf 1/2" Plywood Sheathing
0.8 psf 2x4 Trusses @ 24 in. o.c.
1.0 psf Ceiling, Mechanical, Electrical
1.6 psf Miscellaneous
7.0 psf TOTAL
Second Floor Dead Load
0 psf Floor Finishes
0 psf 1 1/8" Subfloor Sheathing
0 psf Joists @ 16' o.c.
0 psf Partitions
0 psf Ceiling, Mechanical, Electrical
0 psf Miscellaneous
0 psf TOTAL
Roof Live Load Floor Live Load
20 psf 0 psf
Roof Snow Load
Ground SnowLoad=0 psf (to be divided by cosine of roof angle for horizontal projection ASCE 7 Sec. 7.4)
pf = 0.7 Ce Ct I pg =0 psf Ce = 1, Ct = 1.1 Flat Roof Snow Load (ASCE 7-16 Eq. 7.3-1)
Cs =0.95 ASCE 7-16 Figure 7.4-1
Additional
Roof Dead Load - New Solar Panels
3 psf
Roof Live Load at Solar Panels
0 psf
Roof Snow Load at Solar Panels
0 psf Sloped Roof Snow Load (ASCE 7-16 Eq. 7.4-1)
Total
Total Existing Roof Load = (DLROOF + Max(LLROOF or S)) AreaROOF
20979 lbs
Total New Roof Load = (DLROOF + DLADD + Max(LLROOF or S)) AreaROOF
18779 lbs
Change in Demand = (Total New Roof Load - Existing Roof Load) / Existing Roof Load
-10.49%
2021 IEBC Section 805.2 states:
"Any existing gravity load-carrying structural element for which an alteration causes an increase in design gravity load
of more than 5 percent shall be strengthened, supplemented, replaced or otherwise altered as needed to carry the
increased gravity load required by this code for new structures."
Gravity Loads
Total New Gravity Loads are less than Existing Loads. OK
Signed 6/12/2024
122 N Bewley St
8/6/2024
Wyssling Consulting
76 N. Meadowbrook Drive
Alpine, UT 84004
(201) 874-3483
swyssling@wysslingconsulting.com
V =95 Basic Wind Speed
Exposure C ASCE 7-16, Section 26.7
Kz =0.85 Velocity Pressure Coefficient, ASCE 7-16, Figure 26.10-1
Rey Residence
122 North Bewley Street Unit 2,
Santa Ana, CA 2.400 kW System
Kzt =1 Topographic Factor, ASCE 7-16, Section 26.8.2
Kd =0.85 Directionality Factor, ASCE 7-16, Section 26.6
Ke =1.000 Ground Elevation Factor, ASCE 7-16, Section 26.9
qh =16.7 psf qh = 0.00256KzKztKdKeV2 (ASCE 7-16 Eq. 26.10-1)
Roof Angle =18 deg
Roof Type Hip
sanchor =72 in Horizontal spacing of roof anchors
Atrib =16.95 sf Panel Area tributary to each roof anchor
GCp External Pressure Coefficient, ASCE 7-16, Figure 30.3-2
Roof Zone Zone 1 2e 2r Zone 3
-1.30 -1.77 -2.36 -1.77
ga =0.77 Pressure Equalization Factor, ASCE 7-16 Figure 29.4.-8
gE =1.00 Edge Array Factor, ASCE 29.4.4 edges < 0.5*building height, and panel spacing < 4ft.
pnet = qhGCpgEga =Design Wind Pressure, ASCE 7-16, Equation 29.4-7
Roof Zone 1 2e 2r Zone 3
-17 psf -23 psf -30 psf -23 psf Min Pressure = -16 psf
Use 17 psf Use 23 psf Use 30 psf Use 23 psf ULTIMATE
x 0.6 =16 psf 16 psf 18 psf 16 psf ALLOWABLE
Connection to Existing Roof Framing
F.S. =1 Additional Factor of Safety applied to withdrawl force, if desired
Atrib =17.0 ft2
DLpanel =3 psf
Roof Zone 1 2e 2r Zone 3
Wuplift =17 psf 23 psf 30 psf 23 psf
Plag = F.S. x Atrib x (0.6D - 0.6W) =Withdrawl force for each roof anchor
Roof Zone 1 2e 2r Zone 3
-143.8 lbs -205.7 lbs -282.1 lbs -205.7 lbs
Connection Capacity
db =5/16 in Lag Screw diameter
Dpen =2 1/2 in Lag Screw penetration into existing framing member
No. of Screws 1 Screws per Connection
Species of wood framing
CD =1.6 Load Duration Factor for Wind Loading, NDS Table 2.3.2
Ct =0.7 Temperature Factor, NDS Table 10.3.4
W =205 lb/in Withdrawl Capacity, NDS Equation 11.2-1
W' = CD x Ct x W =229 lb/in Adjusted withdrawl value
Pallow = Dpen x W' =573 lbs
Roof Zone 1 2e 2r Zone 3
DEMAND =144 lbs 206 lbs 282 lbs 206 lbs
CAPACITY =573 lbs 573 lbs 573 lbs 573 lbs
up to72in ok up to72in ok up to72in ok up to72in ok
This analysis calculates the
capacity of the lag screws
only. For capacity of the
complete mounting system,
please see manufacturer's
recommendations.
Spruce-Pine-Fir
Wind Uplift
Rooftop Solar Panels Parallel to Roof Surface
ASCE 7-16, Section 29.4.4
Signed 6/12/2024
122 N Bewley St
8/6/2024
Expedited Permit Process for PV Systems - Micro-Inverter1
Expedited Permit Process for PV Systems
Micro-Inverter
The Solar America Board for Codes and Standards (Solar ABCs) Expedited Permit Pro-
cess provides a means to differentiate systems that can be permitted quickly and easily
due to their similarity with the majority of small-scale PV systems. Those systems with
unique characteristics may be handled with small additions to this Expedited Permit
Process or may require much more information, depending on the uniqueness of the
installation.
The following pages contain forms for the Micro-Inverter to use with the Expedited Per-
mit Process. The Standard String, AC Module, and Supply-Side Connection forms
are also available as interactive PDF files at www.solarabcs.org/permitting. In jurisdic-
tions that have adopted the Expedited Permit Process for PV Systems, these forms can
be filled out electronically and submitted in either printed form and via email. An elec-
tronic format is used so that the supplied information is standardized and legible for the
local jurisdiction.
122 N Bewley St
8/6/2024
Expedited Permit Process for PV Systems — Micro-Inverter 2
Expedited Permit Process for Small-Scale PV Systems
Micro-Inverter
The information in this guideline is intended to help local jurisdictions and contractors identify when PV system installations
are simple, needing only a basic review, and when an installation is more complex. It is likely that 50%-75% of all residential
systems will comply with these simple criteria. For projects that fail to meet the simple criteria, resolution steps have been
suggested to provide as a path to permit approval.
Required Information for Permit:
1. Site plan showing location of major components on the property. This drawing need not be exactly to scale, but it
should represent relative location of components at site (see supplied example site plan). PV arrays on dwellings
with a 3’ perimeter space at ridge and sides may not need separate fire service review.
2. Electrical diagram showing PV array configuration, wiring system, overcurrent protection, inverter, disconnects,
required signs, and ac connection to building (see supplied standard electrical diagram).
3. Specification sheets and installation manuals (if available) for all manufactured components including, but not
limited to, PV modules, inverter(s), combiner box, disconnects, and mounting system.
Step 1: Structural Review of PV Array Mounting System
Is the array to be mounted on a defined, permitted roof structure? l Yes l No
If No due to non-compliant roof or a ground mount, submit completed worksheet for the structure WKS1.
Roof Information:
1. Is the roofing type lightweight (Yes = composition, lightweight masonry, metal, etc…)__________________________
____________________________________________________________________________________________________
If No, submit completed worksheet for roof structure WKS1 (No = heavy masonry, slate, etc…).
2. Does the roof have a single roof covering? l Yes l No
If No, submit completed worksheet for roof structure WKS1.
3. Provide method and type of weatherproofing roof penetrations (e.g. flashing, caulk).____________________________
Mounting System Information:
1. Is the mounting structure an engineered product designed to mount PV modules with no more than an 18” gap
beneath the module frames? l Yes l No
If No, provide details of structural attachment certified by a design professional.
2. For manufactured mounting systems, fill out information on the mounting system below:
a. Mounting System Manufacturer ___________Product Name and Model#________________________________
b. Total Weight of PV Modules and Rails ___________lbs
c. Total Number of Attachment Points____________
d. Weight per Attachment Point (b÷c)_________________lbs (if greater than 45 lbs, see WKS1)
e. Maximum Spacing Between Attachment Points on a Rail ______________inches (see product manual for
maximum spacing allowed based on maximum design wind speed)
f. Total Surface Area of PV Modules (square feet)_________________ ft2
g. Distributed Weight of PV Module on Roof (b÷f)_______________ lbs/ft2
If distributed weight of the PV system is greater than 5 lbs/ft2, see WKS1.
Step 2: Electrical Review of PV System (Calculations for Electrical Diagram)
In order for a PV system to be considered for an expedited permit process, the following must apply:
1. PV modules, utility-interactive inverters, and combiner boxes are identified for use in PV systems.
2. The PV array is composed of 4 series strings or less per inverter.
3. The total inverter capacity has a continuous ac power output 13,440 Watts or less
4. The ac interconnection point is on the load side of service disconnecting means (690.64(B)).
5. One of the standard electrical diagrams (E1.1, E1.1a, E1.1b, or E1.1c) can be used to accurately represent the PV
system. Interactive PDF diagrams are available at www.solarabcs.org/permitting.
Fill out the standard electrical diagram completely. A guide to the electrical diagram is provided to help the applicant
understand each blank to fill in. If the electrical system is more complex than the standard electrical diagram can effectively
communicate, provide an alternative diagram with appropriate detail.
122 N Bewley St
8/6/2024
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Micro-Inverter Site Plan
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Micro-Inverter Electrical Diagram
Contractor Name,
Address and Phone:One-Line Standard Electrical Diagram
for Micro-Inverter PV Systems
Site Name:
Site Address:
System AC Size:
SIZE FSCM NO DWG NO REV
E1.1a
SCALE NTS Date: SHEET
Drawn By:
Checked By:
DESCRIPTION OR CONDUCTOR TYPE
USE-2 or PV WIRE
GEC EGC X ALL THAT APPLY
EXTERIOR CABLE LISTED W/ INV.
THWN-2 or XHHW-2 or RHW-2
GEC EGC X ALL THAT APPLY
NO DC GEC IF 690.35 SYSTEM
THWN-2 or XHHW-2 or RHW-2
GEC EGC X ALL THAT APPLY
TAG
1
2
3
4
5
CONDUIT AND CONDUCTOR SCHEDULE
COND.
GAUGE
MFG
MFG
NUMBER OF
CONDUCTORS
MFG Cable
MFG Cable
CONDUIT
TYPE
N/A
N/A
N/A
SAME
SAME
CONDUIT
SIZE
N/A
N/A
N/A
SAME
SAME
DESCRIPTION
PV DC or AC MODULE
DC/AC INVERTER (MICRO)
J-BOX (IF USED)
PV ARRAY
AC COMB. PANEL (IF USED)
GEN METER (IF USED)
AC DISCONNECT (IF USED)
SERVICE PANEL
TAG
1
2
3
4
5
6
7
8
PART NUMBER NOTES
FOR UNUSED MODULES
PUT "N/A” in BLANK ABOVE
1
1
3
2
3
EQUIPMENT SCHEDULE
2
_____
MICRO-INVERTERS
IN BRANCH-
CIRCUIT
MOD
____
DC
AC
MOD
____
DC
AC
MOD
____
DC
AC
MOD
____
DC
AC
MOD
____
DC
AC
MOD
____
DC
AC
J-BOX
4
AC DISCO
M
BUILDING
GROUNDING
ELECTRODE
G
M
UTILITY
SERVICE
MAIN SERVICE PANEL
MAIN
OCPD
INVERTER
OCPD
6
7
8
5
4 5
G
SEE GUIDE APPENDIX D FOR
INFORMATION ON MODULE AND
ARRAY GROUNDING
AC COMBINER
PANEL
G
____
MICRO-INVERTERS
IN BRANCH-
CIRCUIT
122 N Bewley St
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Contractor Name,
Address and Phone:Notes for One-Line Standard Electrical
Diagram for Single-Phase PV Systems
Site Name:
Site Address:
System AC Size:
SIZE FSCM NO DWG NO REV
E1.2a
SCALE NTS Date: SHEET
Drawn By:
Checked By:
MAX POWER-POINT CURRENT (IMP)
MAX POWER-POINT VOLTAGE (VMP)
OPEN-CIRCUIT VOLTAGE (VOC)
SHORT-CIRCUIT CURRENT (ISC)
MAX SERIES FUSE (OCPD)
MAXIMUM POWER (PMAX)
MAX VOLTAGE (TYP 600VDC)
VOC TEMP COEFF (mV/oC or %/oC )
IF COEFF SUPPLIED, CIRCLE UNITS
MODULE MAKE
MODULE MODEL
PV MODULE RATINGS @ STC (Guide Section 5)
MAX DC VOLT RATING
MAX POWER @ 40oC
NOMINAL AC VOLTAGE
MAX AC CURRENT
MAX OCPD RATING
INVERTER MAKE
INVERTER MODEL
INVERTER RATINGS (Guide Section 4)
1) IF UTILITY REQUIRES A VISIBLE-BREAK SWITCH, DOES THIS SWITCH MEET THE REQUIREMENT? YES NO N/A
2) IF GENERATION METER REQUIRED, DOES THIS METER SOCKET MEET THE REQUIREMENT? YES NO N/A
3) SIZE PHOTOVOLTAIC POWER SOURCE (DC) CONDUCTORS BASED ON MAX CURRENT ON NEC 690.53 SIGN OR OCPD RATING AT DISCONNECT
4) SIZE INVERTER OUTPUT CIRCUIT (AC) CONDUCTORS ACCORDING TO INVERTER OCPD AMPERE RATING. (See Guide Section 9)
5) TOTAL OF ______ INVERTER OUTPUT CIRCUIT OCPD(s), ONE FOR EACH MICRO-INVERTER CIRCUIT. DOES TOTAL SUPPLY BREAKERS COMPLY WITH 120% BUSBAR EXCEPTION IN 690.64(B)(2)(a)? YES NO
NOTES FOR INVERTER CIRCUITS (Guide Section 8 and 9):
1.) LOWEST EXPECT AMBIENT TEMPERATURE BASED ON ASHRAE MINIMUM MEAN EXTREME DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TO INSTALLATION LOCATION. LOWEST EXPECTED AMBIENT TEMP ____oC
2.) HIGHEST CONTINUOUS AMBIENT TEMPERATURE BASED ON ASHRAE HIGHEST MONTH 2% DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TO INSTALLATION LOCATION. HIGHEST CONTINUOUS TEMPERATURE ____oC
2.) 2009 ASHRAE FUNDAMENTALS 2% DESIGN TEMPERATURES DO NOT EXCEED 47oC IN THE UNITED STATES (PALM SPRINGS, CA IS 44.1oC). FOR LESS THAN 9 CURRENT-CARRYING CONDUCTORS IN ROOF-MOUNTED SUNLIT CONDUIT AT LEAST 0.5" ABOVE ROOF AND USING THE OUTDOOR DESIGN TEMPERATURE OF 47oC OR LESS (ALL OF UNITED STATES),
a) 12 AWG, 90oC CONDUCTORS ARE GENERALLY ACCEPTABLE FOR MODULES WITH Isc OF 7.68 AMPS OR LESS WHEN PROTECTED BY A 12-AMP OR SMALLER FUSE.b) 10 AWG, 90oC CONDUCTORS ARE GENERALLY ACCEPTABLE FOR MODULES WITH Isc OF 9.6 AMPS OR LESS WHEN PROTECTED BY A 15-AMP OR SMALLER FUSE.
NOTES FOR ARRAY CIRCUIT WIRING (Guide Section 6 and 8 and Appendix E):
OCPD = OVERCURRENT PROTECTION DEVICE
NATIONAL ELECTRICAL CODE®REFERENCES
SHOWN AS (NEC XXX.XX)
NOTES FOR ALL DRAWINGS:
SIGNS–SEE GUIDE SECTION 7
SIGN FOR DC DISCONNECT
SIGN FOR INVERTER OCPD AND AC
DISCONNECT (IF USED)
No sign necessary since 690.51
marking on PV module covers
needed information
AC OUTPUT CURRENT
NOMINAL AC VOLTAGE
SOLAR PV SYSTEM
AC POINT OF CONNECTION
THIS PANEL FED BY MULTIPLE
SOURCES (UTILITY AND SOLAR)
Notes for Micro-Inverter Electrical Diagram 122 N Bewley St
8/6/2024
122 N Bewley St
8/6/2024
122 N Bewley St
8/6/2024
To whom it may concern,
I Lawrence Rey have signed a contract with Solarmax Renewable Energy Provider for the
Installation of (6) Roof mounted solar panels with (6) Micro Inverters = 2.4kW on my home at 122 N
Bewley St Unit 2, Santa Ana, CA 92703. If you have any questions, please feel free to contact me at
(Customers Phone).
Sincerely,
Lawrence Rey
Docusign Envelope ID: B7D59B97-F743-44E5-AFCB-C18F152EE41E
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8/6/2024
Certificate Of Completion
Envelope Id: B7D59B97F74344E5AFCBC18F152EE41E Status: Completed
Subject: Please Sign this document: Solar Panel Layout Approval - Lawrence Rey
Source Envelope:
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Certificate Pages: 2 Initials: 0 Layout Department
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Time Zone: (UTC-08:00) Pacific Time (US & Canada)
3080 12th St
Riverside , CA 92507
layout@solarmaxtech.com
IP Address: 100.43.224.186
Record Tracking
Status: Original
7/26/2024 11:36:39 AM
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layout@solarmaxtech.com
Location: DocuSign
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Lawrence Rey
lvrey431@gmail.com
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122 N Bewley St
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Rev: 2/17/2015
RESIDENTIAL
PHOTOVOLTAIC
SOL-01 CBC 2013
Solar Photovoltaic (PV) Checklist for Detached SINGLE FAMILY RESIDENCES Only
Instructions: The licensed contractor of record shall fill in the address of the project, contractor’s
licensing information and answer questions 1 -10 below. Complete and sign the certification section.
**If answering NO to any of the questions, plan check shall be required.**
Project Address: ________________________________________________________________
Contractor Company Name: _______________________________________________________
Contractor License Number: _______________________________________________________
YES NO Are the following applicable to the proposed project?
1. Will the PV array be flush mounted to the existing roof so that the plane of the
modules (panels) are parallel to the plane of the roof?
2. Will the PV system weigh maximum 3 pounds per square feet or less?
3. Will the PV system be installed where the modules do not overhang any roof edges
(such as eaves, gabled ends, ridges and hips)?
4. Will the PV system be installed with a space of 2” minimum to 10” maximum between
the underside of modules and the surface of the roof?
5. Will the PV system be installed without using any ballast system or counter-weight
system?
6. Will the PV system be installed on a roof having only one roofing layer with no
overlays?
7. Will the PV system layout provide a three-foot wide clear access pathway per the
latest edition of “Guideline for Fire Safety Elements of Solar Photovoltaic Systems”
by OCFA? (Guideline available on the OCFA website: http://www.ocfa.org)
8. Do the plans show a maximum horizontal anchor spacing of 6 feet?
9. Do the plans show a minimum of 2-1/2 inch lag screw embedment into roof rafters?
10. Are ALL the structural pages of the plans WET stamped and signed by a California
licensed professional engineer? (including project specific site plan, PV layout,
anchorage spacing, anchorage details and manufacturer’s PV support information.)
I certify under penalty of perjury under the laws of the State of California that the above is true:
Print name: ________________________________ Signature: _________________________
Phone Number: _____________________________ Date: _____________________________
Email Address: _________________________________________________________________
Planning & Building Agency
Building Safety Division
20 Civic Center Plaza
P.O. Box 1988 (M-19)
Santa Ana, CA 92702
(714) 647-5800
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TOOLKIT DOCUMENT #5
Structural Criteria for Residential
Rooftop Solar Energy Installations
Your City
logo here
Use of this document
This toolkit document includes a one-page list of structural criteria for over-the-counter or online approval, as
well as attached tables and figures that supplement the criteria and explain their use.
This document applies to flush-mounted solar arrays installed on the roofs of wood-framed one- and two-
family dwellings. “Flush-mounted” means the modules are installed parallel to, and relatively close to, the roof
surface (see the “Solar Array Check” section of the Structural Criteria for specific qualifying requirements).
This list is intended to be a simple pre-installation check to gain reasonable assurance that the design of the
solar array complies with the structural provisions of the 2013 California Building Code (CBC) and 2013
California Residential Code (CRC). It is not intended to provide post-installation inspection criteria.
Currently Used Expedited Solar Permitting Approaches
This document is intended for jurisdictions without an expedited process for residential solar structural
permitting, and is not intended to replace or supplant procedures for jurisdictions with an expedited process
already in place. Good examples from jurisdictions with provisions for expedited structural permitting include
the City of Los Angeles, which exempts residential solar installations from structural permitting if five simple
requirements are met, and the East Bay Green Corridor’s streamlined solar permitting process, which uses
structural criteria tailored to typical conditions for that consortium of nine cities.
Regional and Site Assumptions
This document is based on the following regional and site assumptions:
• The dwelling is located in a ZERO snow load area (see Map 1).
• The dwelling is not in Wind Exposure D (within 200 yards of the ocean or a large coastal bay).
• If in Wind Exposure B (urban, suburban or wooded areas), the dwelling may be located:
– in a Special Wind Region (see Map 2) with design wind speeds between 110 and 130 mph, or
– on a tall hill, provided average slope is no steeper than 15%.
• If in Wind Exposure C (within 500 yards of large open fields or grasslands), the dwelling is:
– in a standard 110 mph design wind speed region, and
– not on a hill with a grade steeper than 5%.
Additional Options
The Chief Building Official (CBO) may consider adding rows to the structural criteria, based on personal
judgment and their jurisdiction’s conditions and history. Possible additional questions include:
• Regional and Site Checks
– If the jurisdiction is in a mixed snow load area, with zero snow load only at lower elevations, consider
asking “is the dwelling lower than elevation ___ feet?”
(Introductory text provided for jurisdiction’s reference only. Do not attach to Criteria that follow.)
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– If the jurisdiction is in a coastal region, consider asking “is the dwelling farther than 200 yards from
the ocean or a large coastal bay?” to verify the dwelling is not in Wind Exposure D.
– If the jurisdiction is in a Special Wind Region with design wind speeds between 115 and 130 mph,
consider verifying that the dwelling is in Wind Exposure B by asking “is the dwelling in an urban,
suburban or wooded area, and not within 500 yards of open fields and grasslands?”
–If the jurisdiction is in a Special Wind Region with design wind speeds between 115 and 130 mph,
consider verifying that there are no significant topographic wind speed-up effects by asking “is the
dwelling in a relatively flat area (grade less than 5%) and not within 500 yards of the crest of a tall hill?”
• Roof Check
– Based on the jurisdiction’s one- and two-family housing stock and code compliance history, many
CBOs will find it reasonable to assume that most dwellings’ roof structures were designed to the
building code in effect at the time the houses were built. If so, the roof structure code compliance
check consists of the Contractor’s visual roof audit, checking for unusual sagging or deterioration,
without requiring additional measurements of existing rafters to check against span tables.
– For CBOs of jurisdictions with evidence of structurally deficient one- and two-family housing stock
or poor structural code compliance history, the CBO may elect to add the rafter span check option
described in the criteria.
The Structural Toolkit and CRC Wind Speeds
The 2013 CRC contains an inconsistency related to wind speeds. Despite referencing ASCE 7-10 as its
standard, the 2013 CRC’s text and tables use outdated ASCE 7-05 wind speeds. Under the old ASCE 7-05
/ CBC 2010, the basic design wind speed in most regions of the state was 85 mph (max. 3 second gust in
50 years). Under ASCE 7-10 / CBC 2013, the design wind speed has increased to 110 mph (max. 3 second
gust in 700 years). Despite the different definitions of wind speed, design wind pressures remain essentially
unchanged.
Because the Toolkit’s structural document is intended to be forward looking, all wind speeds in the Toolkit
document are based on the ASCE 7-10. This is clearly stated in the caption to the state wind speed map, and in
the Table 1 footnotes. This anticipates an obvious and expected correction to the CRC; otherwise the Toolkit
would become immediately outdated when the CRC is amended to change the base design wind speed from 85
mph to 110 mph.
2013 CRC text (ASCE 7-05) wind speeds equivalent to the 2013 CRC and CBC Reference Standard (ASCE
7-10) are shown below. See ASCE 7-10 Table C26.5-6 for additional information.
2013 CRC text 2013 CRC and CBC Referenced Standard
ASCE 7-05 ASCE 7-10
85 mph 110 mph
90 mph 115 mph
95 mph 120 mph
100 mph 126 mph
105 mph 133 mph
(Introductory text provided for jurisdiction’s reference only. Do not attach to Criteria that follow.)
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Structural Technical Appendix
This toolkit document is supported by a Structural Technical Appendix that describes the technical analysis
behind these criteria, which are based on structural engineering principles and the California Building
and Residential Codes. The Technical Appendix also provides some additional guidance to address non-
conforming items, such as when an anchor layout is not based on a solar support component manufacturer’s
guidelines, or when a coastal site is located within 200 yards of the ocean (Exposure D). This document can be
found online.
Probability of Code Compliance
The Structural Technical Appendix includes a section that examines the probabilities associated with the
assumptions behind Table 1 that allows six feet cross-slope anchor spacing in some circumstances. That
statistical analysis estimates that the probability of code noncompliance for six feet anchor spacing is only 2 in
a thousand installations (0.2%). Note that probability of structural failure is orders of magnitude lower than
the probability of code noncompliance.
(Introductory text provided for jurisdiction’s reference only. Do not attach to Criteria that follow.)
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31
Map 2. California Ground Snow Load Map (Ref: ASCE 7-10).
Numbers in parentheses represent the upper elevation limits in feet for the ground snow load in psf
listed below the elevation. Example: (2400) ZERO in the south San Francisco bay area indicates that
zero ground snow loads occur from sea level up to an elevation of 2400 feet. CS indicates "Case
Studies" where extreme local variations in ground snow loads occur. Non-zero snow load areas and
Case Study (CS) areas are excluded from the Expedited Solar Permitting Process. See the Technical
Appendix for additional information.
Map 1. California Ground Snow Load Map (Ref: ASCE 7-10).
The numbers in parentheses represent the upper elevation limits in feet for the ground snow load in psf listed
below the elevation. Example: (2400) ZERO in the South San Francisco bay area indicates that zero ground
snow loads occur from sea level up to an elevation of 2400 feet. CS indicates “Case Studies” where extreme
local variations in ground snow loads occur. Non-zero snow load areas and Case Study (CS) areas are excluded
from the use of this structural toolkit document. See the Technical Appendix for additional information.
(Map provided for jurisdiction’s reference only. Do not attach to Criteria that follow.)
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Map 1. California Design Wind Speed Map (Ref: ASCE 7-10).
As shown on the map, typical design wind speed is 110 mph (3 second gust in 700 years). The grey
shaded areas on the map indicate special wind regions with higher wind speeds that are excluded
from the Expedited Solar Permitting Process. See the Technical Appendix for additional information.
Map 2. California Design Wind Speed Map (Ref: ASCE 7-10).
The number outside the parentheses represents the design wind speed in mph. Typical design wind speed is
110 mph. The grey shaded areas on the map indicate “special wind regions” where higher wind speeds may
apply. When the project is in a grey shaded area, contact the local building department for the design wind
speed.
(Map provided for jurisdiction’s reference only. Do not attach to Criteria that follow.)
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STRUCTURAL CRITERIA FOR RESIDENTIAL FLUSH-MOUNTED SOLAR ARRAYS
1. ROOF CHECKS
A. Visual Review/Contractor’s Site Audit of Existing Conditions:
1)Is the roof a single roof without a reroof overlay? Y N
2) Does the roof structure appear structurally sound, without signs of alterations
or significant structural deterioration or sagging, as illustrated in Figure 1? Y N
B. Roof Structure Data:
1) Measured roof slope (e.g. 6:12):________:12
2) Measured rafter spacing (center-to-center):_______ inch
3) Type of roof framing (rafter or manufactured truss): Rafter Truss
2. SOLAR ARRAY CHECKS
A. Flush-mounted Solar Array:
1) Is the plane of the modules (panels) parallel to the plane of the roof? Y N
2) Is there a 2” to 10” gap between underside of module and the roof surface? Y N
3) Modules do not overhang any roof edges (ridges, hops, gable ends, eaves)? Y N
B. Do the modules plus support componenets weigh no more than:
4 psf for photovoltaic arrays or 5 psf for solar thermal arrays? Y N
C. Does the array cover no more than half of the toal roof area (all roof planes)? Y N
D. Are solar support component manufacturer’s project-specific completed worksheets,
tables with relevant cells circled, or web-based calculator results attached? Y N
E. Is a roof plan of the module and anchor layout attached? (see Figure 2) Y N
F. Downward Load Check (Anchor Layout Check):
1) Proposed anchor horizontal spacing (see Figure 2):____’ - ____”ft-in
2) Horizontal anchor spacing per Table 1:____’ - ____”ft-in
3) Is proposed anchor horizontal spacing less than Table 1 spacing? Y N
G. Wind Uplift Check (Anchor Fastener Check):
1) Anchor fastener data (see Figure 3):
a. Diameter of lag screw, hanger bolt or self-drilling screw:_______ inch
b. Embedment depth of rafter:_______ inch
c. Number of screws per anchor (typically one):_______
d. Are 5/16” diameter lag screws with 2.5” embedment into the rafter
used, OR does the anchor fastener meet the manufacturer’s guidelines? Y N
3. SUMMARY
A. All items above are checked YES. No additional calculations are required.
B. One or more items are checked NO. Attach project-specific drawings and calculations stamped and signed by a
California-licensed Civil or Structural Engineer.
Job Address: ___________________________________________ Permit #: ________________________
Contractor/Installer: _____________________________________ License # & Class: _________________
Signature: ____________________________ Date: ____________ Phone #: ________________________
Optional Additional Rafter Span Check Criteria
[ At option of CBO, insert rows (4) to (7) below into table above after row 1.B.(3) ]
1. ROOF CHECKS
B. Roof Structure Data:
4) Measured rafter size (e.g. 13/4 x 33/4, not 2x4):____ x ____ inch
5) Measured rafter horizontal span (see Figure 4):____’ - ____”ft-in
6) Horizontal rafter span per Table 2:____’ - ____”ft-in
7) Is measured horizontal rafter span less than Table 2 span? Y N Truss
(Jurisdictions may delete “Optional Additional Rafter Span Check” at bottom of this page, or incorporate into main list of Structural Criteria above)
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Table 1. Maximum Horizontal Anchor Spacing
Roof Slope Rafter Spacing
16” o.c.24” o.c.32” o.c.
Photovoltaic Arrays (4 psf max)
Flat to 6:12 0° to 26°5’-4”6’-0”5’-4”
7:12 to 12:12 27° to 45°1’-4”2’-0”2’-8”
13:12 to 24:12 46° to 63°1’-4”2’-0”2’-8”
Solar Thermal Arrays (5 psf max)
Flat to 6:12 0° to 26°4’-0”4’-0”5’-4”
7:12 to 12:12 27° to 45°1’-4”2’-0”2’-8”
13:12 to 24:12 46° to 63° Calc. Req’d Calc. Req’d Calc. Req’d
Solar support component manufacturer’s guidelines may be relied upon to ensure the array above the roof is
properly designed, but manufacturer’s guidelines typically do NOT check to ensure that the roof itself can support
the concentrated loads from the solar array. Table 1 assumes that the roof complied with the building code in
effect at the time of construction, and places limits on anchor horizontal spacing to ensure that a roof structure is
not overloaded under either downward loads or wind uplift loads. Note 4 below lists the basic assumptions upon
which this table is based.
Table 1 Notes:
1. Anchors are also known as “stand-offs”, “feet”, “mounts” or “points of attachment”. Horizontal anchor
spacing is also known as “cross-slope” or “east-west” anchor spacing (see Figure 2).
2. If anchors are staggered from row-to-row going up the roof, the anchor spacing may be twice that shown
above, but no greater than 6’-0”.
3. For manufactured plated wood trusses at slopes of flat to 6:12, the horizontal anchor spacing shall not
exceed 4’-0” and anchors in adjacent rows shall be staggered.
4. This table is based on the following assumptions:
• The roof structure conformed to building code requirements at the time it was built.
• The attached list of criteria are met.
• Mean roof height is not greater than 40 feet.
• Roof sheathing is at least 7/16” thick oriented strand board or plywood. 1x skip sheathing is acceptable.
• If the dwelling is in Wind Exposure B (typical urban, suburban or wooded areas farther than 500
yards from large open fields), no more than one of the following conditions apply:
– The dwelling is located in a special wind region with design wind speed between 115 and 130
mph per ASCE 7-10, or
– The dwelling is located on the top half of a tall hill, provided average slope steeper is less than
15%.
• If the dwelling is In Wind Exposure C (within 500 yards of large open fields or grasslands), all of the
following conditions apply:
– Design wind speed is 110 mph or less (not in a Special Wind Region), and
– The dwelling is not located on the top half of a tall hill.
• The solar array displaces roof live loads (temporary construction loads) that the roof was originally
designed to carry.
• The Structural Technical Appendix provides additional information about analysis assumptions.
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Table 2. Roof Rafter Maximum Horizontal Span (feet - inches)1
Assumed
Vintage
Nominal
Size
Actual
Size
Non-Tile Roof2 Tile Roof3
Rafter Spacing
16” o.c. 24” o.c. 32” o.c. 16” o.c. 24” o.c. 32” o.c.
Post-1960
2x4 1½”x3½” 9’-10” 8’-0” 6’-6” 8’-6” 6’-11” 5’-6”
2x6 1½”x5½” 14’-4” 11’-9” 9’-6” 12’-5” 10’-2” 8’-0”
2x8 1½”x7¼” 18’-2” 14’-10” 12’-0” 15’-9” 12’-10” 10’-3”
Pre-1960
2x4 1¾”x3¾” 11’-3” 9’-9” 7’-9” 10’-3” 8’-6” 6’-9”
2x6 1¾”x5¾” 17’-0” 14’-0” 11’-3” 14’-9” 12’-0” 9’-9”
2x8 1¾”x7¾” 22’-3” 18’-0” 14’-6” 19’-0” 15’-6” 12’-6”
Beyond a visual review by the Contractor checking for unusual sagging or deterioration, some CBOs may want
additional assurance that the roof structure complies with structural building code requirements. Table 2 is an
optional table some CBOs may elect to use to provide additional assurance by requiring a check of existing roof
rafter spans, and supports optional criteria 1.B.5 and 1.B.6. For post-1960 construction, these span tables match
the rafter span tables found in the 2013 California Building and Residential codes. For pre-1960 construction, the
rafter span tables are based on structural calculations with lumber sizes and wood species & grade appropriate for
older construction. Note 5 below lists the basic assumptions upon which this table is based.
Table 2 Notes:
1. See Figure 4 for definition of roof rafter maximum horizontal span.
2. “Non-tile Roof” = asphalt shingle, wood shingle & wood shake, with an assumed roof assembly weight of
10 psf.
3. “Tile Roof” = clay tile or cement tile, with an assumed roof assembly weight of 20psf
4. Unaltered manufactured plated-wood trusses may be assumed to be code compliant and meet intent of
Table 2.
5. This table is based on the following assumptions:
• Span/deflection ratio is equal to or greater than 180.
• For post-1960 construction, wood species and grade is Douglas Fir-Larch No. 2.
• For pre-1960 construction, wood species and grade is Douglas Fir-Larch No. 1.
• Other wood species and/or grade are also acceptable if allowable bending stress is equal or greater to
that listed above.
(Attach Table 2 ONLY if the Optional Additional Rafter Span Check is added to the list of Structural Criteria)
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Figure 1. Roof Visual Structural Review (Contractor’s Site Audit) of Existing Conditions.
The site auditor should verify the following:
1. No visually apparent disallowed rafter holes, notches and truss modifications as shown above.
2. No visually apparent structural decay or un-repaired fire damage.
3. Roof sag, measured in inches, is not more than the rafter or ridge beam length in feet divided by 20.
Rafters that fail the above criteria should not be used to support solar arrays unless they are first strengthened.
Figure 2. Sample Solar Panel Array and Anchor Layout Diagram (Roof Plan).
34
32
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Figure 3. Typical Anchor with Lag Screw Attachment.
Figure 4. Definition of Rafter Horizontal Span.
34
Figure 3. Sample Photovoltaic Module and Anchor Layout Diagram.
Figure 4. Typical Anchor with Lag Screw Attachment.
(Attach Figure 4 ONLY if the Optional Additional Rafter Span Check is added to the list of Structural Criteria)
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MODULE SPEC SHEET
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INVERTER SPEC SHEET
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COMBINER SPEC SHEET
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Q CABLE ACCESSORIES SPEC SHEET
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AC DISCONNECT SPEC SHEET
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ATTACHMENT SPEC SHEET
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RACKING SPEC SHEET
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GROUNDING AND BONDING SPEC SHEET
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ENGINEERING LETTER
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ENGINEERING LETTER
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