HomeMy WebLinkAbout2327 N Spurgeon St - Plan2327 N Spurgeon
St11/17/22
Rev: 7/15/2021
RESIDENTIAL
PHOTOVOLTAIC
CHECKLIST
SOL-01 CBC 2019
Solar Photovoltaic (PV) Checklist for Detached SINGLE FAMILY RESIDENCES Only
Instructions: The licensed contractor of record shall complete all sections, answer the ten questions and
sign the certification section below. A copy of this form shall be attached to each of TWO sets of plans, of
minimum 11” x 17” size. 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 system layout provide the required three-foot wide clear access pathways
per Section 605.11 of the California Fire Code, and is this shown on the roof plan?
2. Will the PV system be installed on a roof having only one roofing layer with no
overlays?
3. 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?
4. Will the PV system weigh maximum 4 pounds per square feet or less?
5. Will the PV system be installed where the modules do not overhang any roof edges
(such as eaves, gabled ends, ridges and hips)?
6. 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?
7. Will the PV system be installed without using any ballast system or counter-weight
system?
8. Will the anchors be installed with a maximum horizontal anchor spacing of 6 feet
and is this maximum horizontal spacing shown on the plans?
9. Will the minimum 5/16” lag screws be installed with a minimum of 2-1/2 inch
embedment into roof rafters (with pre-drilled holes) and is this minimum embedment
shown on the plans?
10. Are ALL the structural pages of the plans 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
www.santa-ana.org
Jay Faulk
2327 N Spurgeon
St11/17/22
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.
2327 N Spurgeon
St11/17/22
Expedited Permit Process for PV Systems — Micro-Inverter2
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:
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)_________________ ft 2
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.
1. Is the roofing type lightweight (Yes = composition, lightweight masonry, metal, etc…)__________________________
____________________________________________________________________________________________________
2327 N Spurgeon
St11/17/22
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Micro-Inverter Site Plan
Solar 360 Building Services
Cantor Energy
1586 N Batavia Ave
Orange, CA 92869 2327 N Spurgeon St
9.25
2327 N Spurgeon
St11/17/22
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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
Solar 360 Building Services
1586 N Batavia Ave
Orange, CA 92869
Cantor Energy
9.25
2327 N Spurgeon St
2327 N Spurgeon
St11/17/22
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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 44.1 oC). 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, 90 oC 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:
SIGNSSEE 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
Solar 360 Building Services
1586 N Batavia Ave
Orange, CA 92869
Cantor Energy
2327 N Spurgeon St
9.25
2327 N Spurgeon
St11/17/22
0
PV SYSTEM
AS INDICATED
SEPTEMBER 13, 2022
JOSHUA CANTOR
2327 N SPURGEON ST
SANTA ANA, CA 92706
Current Insight, LLC
2852 W. Amini Way
South Jordan, UT
84095
Drafted By:
Solar 360
Building Services, Inc
Address:
1586 N. Batavia St.
Orange , CA 92867
Phone Number:
888-688-4946
info@solar-360.com
License #: 985010-B
Drawn By : Narek A.
CONTRACTOR
COVER PAGE
1. ALL ELECTRICAL MATERIALS SHALL BE NEW AND LISTED BY RECOGNIZED ELECTRICAL TESTING LABORATORY CUSTOM MADE EQUIPMENT SHALL HAVE
COMPLETE TEST DATA SUBMITTED BY THE MANUFACTURER ATTESTING TO ITS SAFETY
2. OUTDOOR EQUIPMENT SHALL BE AT LEAST NEMA 3R RATED
3. ALL METALLIC EQUIPMENT SHALL BE GROUNDED
4. ALL SPECIFIC WIRING IS BASED ON THE USE OF COPPER.
5.CONTRACTOR SHALL OBTAIN ELECTRICAL PERMITS PRIOR TO INSTALLATION AND SHALL COORDINATE ALL INSPECTIONS, TESTING
COMMISSIONING AND ACCEPTANCE WITH THE CLIENT, UTILITY CO. AND CITY INSPECTORS AS NEEDED.
6.THE ELECTRICAL CONTRACTOR SHALL VERIFY THE EXACT LOCATIONS OF SERVICE POINTS AND SERVICE SIZES WITH THE SERVING UTILITY COMPANY
AND COMPLY WITH ALL UTILITY COMPANIES REQUIREMENTS. IF THE SOLAR BACK FED BREAKER IS OVER THE BUSS SIZE 20% LIMIT, CONTRACTOR SHALL
INCLUDE THE COST TO REPLACE MAIN BREAKER OR ENLARGE MAIN CAPACITY.
7. DRAWINGS ARE DIAGRAMMATIC ONLY, ROUTING OF RACEWAYS SHALL BE OPTION OF THE CONTRACTOR UNLESS OTHERWISE NOTED AND SHALL BE
COORDINATED WITH OTHER TRADES.
8. IF THE ROOF MATERIAL OR ROOF STRUCTURE NOT ADEQUATE FOR PV INSTALLATION, CALL ENGINEER PRIOR TO INSTALL. THE CONTRACTOR IS
RESPONSIBLE TO VERIFY THAT THE ROOF IS CAPABLE OF WITHSTANDING THE EXTRA WEIGHT.
9. IF THE DISTANCES FOR CABLE RUNS ARE DIFFERENT THAN SHOWN, THE CONTRACTOR SHALL NOTIFY THE ELECTRICAL ENGINEER TO VALIDATE THE
WIRE SIZE. FINAL DRAWINGS WILL BE RED-LINED AND UPDATED AS APPROPRIATE.
10. WHENEVER A DISCREPANCY IN QUALITY OF EQUIPMENT ARISES ON THE DRAWING OR SPECIFICATIONS, THE CONTRACTOR SHALL BE RESPONSIBLE FOR
PROVIDING AND INSTALLING ALL MATERIAL AND SERVICES REQUIRED BY THE STRICTEST CONDITIONS NOTED ON THE DRAWINGS OR IN THE
SPECIFICATIONS TO ENSURE COMPLETE COMPLIANCE AND LONGEVITY OF THE OPERABLE SYSTEM REQUIRED BY THE ARCHITECT/ENGINEERS.
OWNER
SCOPE
PROJECT
ADDRESS
PROJECT DATA GENERAL NOTES VICINITY MAP
SHEET INDEX
0 COVER PAGE
PHOTOVOLTAIC NOTES
SATELLITE VIEW
BUILDING
INFORMATION:
SINGLE LINE DIAGRAM
CODE REQUIRED SIGNAGE
3
4
ATTACHMENT LAYOUT5
INVERTER DATA SHEET
D1 MODULE DATA SHEET
RACKING DATA SHEET
MODULE & RACKING CERTIFICATE
ATTACHMENT DATA SHEET
ELECTRICAL
INFORMATION
MAIN SERVICE PANEL
BUSBAR RATING
MAIN SERVICE
BREAKER RATING
1ɸ, 3W, 120/240V
ROOF PLAN
RACKING
INFORMATION
Main Service Panel
Solar Module
Micro Inverter /
Optimizer
EMT / FMT / PVC
/ RMC type conduit/
Romex NM Cable/
FNMT (Fluid non-metalic tube)
36'' SetbackInverter
Utility Meter
Production Meter
PV Load Center
IQ Combiner Box
Junction Box
Sunpower PV Supervisor
18'' Setback
EV Outlet
CONSTRUCTION TYPE: V-B
ROOF
TYPE
AHJ
APN
LOT AREA
LIVING AREA
MSP
UM
PM
INV
PV
PVS6
IQ
J/B
EV
JOSHUA CANTOR
25
25 ENPHASE
IQ8PLUS-72-2-US
2327 N SPURGEON ST
SANTA ANA, CA 92706
AC DisconnectACD
SSP Service Sub Panel
ROLLED COMP
1,599 SQFT
00307229
CITY OF SANTA ANA
WIRE SIZE CALCULATIONS
D2
D3
D4
D5
D6
GROUNDING SPECSD7
ROOF MOUNT INSTALLATION OF
DC PHOTOVOLTAIC SYSTEM
10.00 KW DC
10.00 KW
9.25 KW AC
EXISTING
1. ROOFTOP MOUNTED PHOTOVOLTAIC PANELS AND MODULES SHALL BE TESTED, LISTED AND IDENTIFIED UL 1703.
2. SOLAR SYSTEM SHALL NOT COVER ANY PLUMBING OR MECHANICAL VENTS
3. MODULES AND SUPPORT STRUCTURES SHALL BE GROUNDED.
4. SOLAR INVERTER MUST HAVE A MANUFACTURE INSTALLED DISCONNECTING MEANS THAT PREVENTS PARALLEL FEEDING UTILITY LINES DURING POWER
OUTAGE.
5. REMOVAL OF AN INTERACTIVE INVERTER OR OTHER EQUIPMENT SHALL NOT DISCONNECT THE BONDING CONNECTION BETWEEN THE GROUNDING
ELECTRODE CONDUCTOR AND THE PHOTOVOLTAIC SOURCE AND/OR OUTPUT CIRCUIT GROUNDED CONDUCTORS.
6. ALL PV MODULES AND ASSOCIATED EQUIPMENT AND WIRING SHALL BE PROTECTED FROM ANY PHYSICAL DAMAGE.
7. LIVE PARTS OF PV SOURCE CIRCUITS AND PV OUTPUT CIRCUITS OVER 150V TO GROUND SHALL NOT BE
ACCESSIBLE TO OTHER THAN QUALIFIED PERSONS WHILE ENERGIZED.
8 .INVERTER IS EQUIPPED W/ INTEGRATED GFCI, THUS PROVIDING GROUND FAULT PROTECTION
9. ALL CONDUCTORS SHALL BE COPPER AND 90 DEG RATED
10. ALL ELECTRICAL EQUIPMENT SHALL BE LISTED BY A RECOGNIZED ELECTRICAL TESTING LABORATORY OR APPROVED BY THE DEPARTMENT.
11. THE OUTPUT OF A UTILITY INTERACTIVE-INVERTER SHALL BE PERMITTED TO BE CONNECTED TO THE SUPPLY SIDE OF THE SERVICE DISCONNECTING
MEANS AS PER 230.82(6)
12. A SINGLE CONDUCTOR SHALL BE PERMITTED TO BE USED TO PERFORM THE MULTIPLE FUNCTIONS OF DC GROUNDING, AC GROUNDING
AND BONDING BETWEEN AC AND DC SYSTEMS SIZED AS PER SEC 250.122
13. EQUIPMENT GROUND CONDUCTOR REQUIRED IN RACEWAYS SIZED PER CEC 250-122.
14. PER ART 250.92. NON-CURRENT CARRYING METAL PARTS OF EQUIPMENT SHALL BE EFFECTIVELY BONDED TOGETHER. BOND BOTH ENDS OF RACEWAYS
2019 CALIFORNIA ELECTRICAL CODE
2019 CALIFORNIA BUILDING CODE
2019 CALIFORNIA GREEN BUILDING STANDARDS
CODE
2019 CALIFORNIA ENERGY CODE
2019 CALIFORNIA MECHANICAL CODE
2019 CALIFORNIA PLUMBING CODE
2019 CALIFORNIA RESIDENTIAL CODE
2019 CALIFORNIA FIRE CODE
ALL OTHER ORDINANCE ADOPTED BY THE
LOCAL GOVERNING AGENCIES
THE INSTALLATION OF SOLAR ARRAYS AND
PHOTOVOLTAIC POWER SYSTEMS SHALL COMPLY
WITH THE FOLLOWING CODES:
1
2
7,500 SQFT 1.1 SITE PLAN
Battery BackupBB
Auto TransformerAT
Solar Edge Meter EnclosureSEM
Distribution PanelDP
Rapid Shutdown Controller RSC
Rapid Shutdown Box RSB
Itron MeterIM
UNIT INDEX
CODE REFERENCES
UNIRAC SOLAR MOUNT
2"X4" @ 24" O.CFRAMING
OCCUPANCY: R
ONE STORY BUILDING
125A
125A
REC SOLAR 400W
REC400AA PURE
61730 (don't delete this note)
IQ COMBINER BOX DATA SHEET
GMA SPEC SHEETD8
BLDG #101112784 ISS. 11/17/2022
ELEC #20177977 ISS. 11/17/2022
2327 N Spurgeon St
11/17/22
1
ROOF PLAN
PV SYSTEM
AS INDICATED
SEPTEMBER 13, 2022
JOSHUA CANTOR
2327 N SPURGEON ST
SANTA ANA, CA 92706
Current Insight, LLC
2852 W. Amini Way
South Jordan, UT
84095
Drafted By:
Solar 360
Building Services, Inc
Address:
1586 N. Batavia St.
Orange , CA 92867
Phone Number:
888-688-4946
info@solar-360.com
License #: 985010-B
Drawn By : Narek A.
CONTRACTOR
N
0°
S
180°
E
90°
W
270°
SCALE
0 51 10ft
PHOTOVOLTAIC SYSTEM
25 Enphase Energy Microinverters
(IQ8PLUS-72-2-US)
FROM JUNCTION BOX TO ROOF EAVE EMT TYPE CONDUIT WILL RUN OVER
THE ROOF AT 1 1/2" HEIGHT, THEN UNDER THE EAVE TO PV EQUIPMENT10.00 KW DC
25 Rec Solar 400W Modules (REC400AA Pure)
HOUSE ROOF AREA CALCULATIONS
FIRE SPRINKLERS - NO
TOTAL ROOF AREA (SQ.FT.) - 1,970
SOLAR AREA (SQ.FT.) - 360
% OF COVERED AREA - 18.3%
NOTE: PVC conduit and fittings directly buried
in earth at a depth not less than 18"
FILL AND COMPACT
SOIL IN TRENCH ON
TOP OF CONDUIT
WARNING RIBBON
12" ABOVE CONDUIT
SCHEDULE 40 PVC
CONDUIT BURIED MINIMUM 18"
CONDUIT BURIAL DETAIL
GROUND LEVELGROUND LEVEL
CONDUIT BURIAL DETAIL
SCHEDULE 40 PVC
CONDUIT BURIED MINIMUM 18"
WARNING RIBBON
12" ABOVE CONDUIT
MSP
Slope Change Line
36'' fire setback
36'' fire setback
36'' fire setback
36'' fire setback 36'' fire setback
36
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36
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36
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36
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Solar Array 3
4 REC 400W Modules
4 IQ8+ Microinverters
Pitch: 5 Deg
Azimuth 180 Deg
Solar Array 1
7 REC 400W Modules
7 IQ8+ Microinverters
Pitch: 5 Deg
Azimuth: 180 Deg
Solar Array 3
10 REC 400W Modules
10 IQ8+ Microinverters
Pitch: 5 Deg
Azimuth: 0 Deg
Solar Array 2
4 REC 400W Modules
4 IQ8+ Microinverters
Pitch: 5 Deg
Azimuth 180 Deg
N
S
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S
t
ACD#2
IQ
ACD#1
J/B#1
J/B#2
SCH 40 PVC Conduit Through
Underground Trench ~ 5 feet
a a a a
aa a
b
bb
b
b
c
b
c
b
c
b
c
b
c
c c
c c
(E) GARAGE
(E) HOUSE
GARAGE ROOF AREA CALCULATIONS
FIRE SPRINKLERS - NO
TOTAL ROOF AREA (SQ.FT.) - 305
SOLAR AREA (SQ.FT.) - 140
% OF COVERED AREA - 45.9%
2327 N Spurgeon
St11/17/22
1.1
PV SYSTEM
AS INDICATED
SEPTEMBER 13, 2022
JOSHUA CANTOR
2327 N SPURGEON ST
SANTA ANA, CA 92706
Current Insight, LLC
2852 W. Amini Way
South Jordan, UT
84095
Drafted By:
Solar 360
Building Services, Inc
Address:
1586 N. Batavia St.
Orange , CA 92867
Phone Number:
888-688-4946
info@solar-360.com
License #: 985010-B
Drawn By : Narek A.
CONTRACTOR
SITE PLAN
PROPERTY LINE
N
0°
S
180°
E
90°
W
270°
SCALE
20ft105 0
MSP
N
S
p
u
r
g
e
o
n
S
t
ACD#2
IQ
ACD#1
Driveway
Pu
b
l
i
c
S
i
d
e
w
a
l
k
150'
50'
6'
44'
7'
53'
68'
16'
95'
33'
(E) GARAGE
(E) HOUSE
2327 N Spurgeon
St11/17/22
2
SINGLE LINE
DIAGRAM
PV SYSTEM
AS INDICATED
SEPTEMBER 13, 2022
JOSHUA CANTOR
2327 N SPURGEON ST
SANTA ANA, CA 92706
Current Insight, LLC
2852 W. Amini Way
South Jordan, UT
84095
Drafted By:
Solar 360
Building Services, Inc
Address:
1586 N. Batavia St.
Orange , CA 92867
Phone Number:
888-688-4946
info@solar-360.com
License #: 985010-B
Drawn By : Narek A.
CONTRACTOR
ITEM DESCRIPTION QTY#
PV MODULE
MAIN SERVICE PANEL
MAIN SERVICE PANEL
& UTILITY METER
BUSBAR RATING
BREAKER RATING
1
ITEM DESCRIPTION QTY #
PVC JUNCTION BOX 4"x4"x2" UL LISTED WATER TIGHT NEMA TYPE 3
1
2
1
4
3
1.2
8
15A 6
M
MAIN
SERVICE
PANEL
120/240V
1P,3W
2
EXISTING
GROUNDING SYSTEM
UTILITY
SCE INSTALLED GMA
4
5
2
3
INVERTER
PEAK PWR TRACKING VOLTAGE
CEC EFFICIENCY
PROTECTION RATING:
MAXIMUM INPUT CURRENT
MAXIMUM OUTPUT CURRENT
MAXIMUM INPUT POWER
MAXIMUM CONTINUOUS OUTPUT POWER
4 25
Enphase Energy Microinverters (IQ8PLUS-72-2-US)
29-45 V
97.0 %
NEMA 6
15.0 A
1.21 A
235-440 W
290 W
IQ COMBINER
INSTALL 15A PV 2-POLE C/B
INSTALL 20A PV 2-POLE C/B
0
3
8 1
15A PV 2-POLE C/B
(2)#14 AWG THWN-2 (L1+L2)
(1)#14 AWG-NEUTRAL
IQ GATEWAY
INFORMATION
ENPHASE IQ COMBINER BOX WITH ENPHASE IQ GATEWAY
120/240V, NEMA 3R MODEL# X-IQ-AM1-240-(4/4C)
30A AC DISCONNECT NON FUSED AC DISCONNECT LOCKABLE,
BLADE TYPE, NEMA 3R, 120/240V 16
EXISTING
EXISTING
PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN
AND COMPLIANT WITH NEC 690.12
2.2
1
(E)125A
3
125A
125A
125A
FOR WIRE SIZE CALCULATIONS PLEASE SEE PAGE #3
25
Rec Solar 400W
REC400AA Pure
Voc = 48.8V
Vmp = 42.1V
Isc = 10.28A
Imp = 9.51A
20A
20A
Branches b,c: (9) Modules, (9) Microinverters
#2
#1
1.1
1
4
3
#2
#1
2.1
6
2.1
#1
AC DISCONNECT 16
FUSED AC DISCONNECT LOCKABLE,
NEMA 3R, 120/240V, 2X40A FUSES
#2
60A
20A
Branch a: (7) Modules, (7) Microinverters
2327 N Spurgeon
St11/17/22
97%
0.97
1.21
1.21
25 IQ8PLUS-72-2-US (CEC)
FROM JBOX TO IQ COMBINER BOX
FROM IQ COMBINER BOX TO FUSED DISCONNECT
1 1/2''
TEMP. DERATE FACTOR (TEMP - 39 + 22 = 61C)0.58
RACEWAY HEIGHT FROM ROOF
PV SYSTEM
AS INDICATED
SEPTEMBER 13, 2022
JOSHUA CANTOR
2327 N SPURGEON ST
SANTA ANA, CA 92706
Current Insight, LLC
2852 W. Amini Way
South Jordan, UT
84095
Drafted By:
Solar 360
Building Services, Inc
Address:
1586 N. Batavia St.
Orange , CA 92867
Phone Number:
888-688-4946
info@solar-360.com
License #: 985010-B
Drawn By : Narek A.
CONTRACTOR
3
WIRE SIZE
CALCULATIONSFROM PV MODULES TO JBOX1
#12 AWG Q-CABLE, PV WIRE(2) 1.1
(1) #6 AWG BARE CU EGC
2.1
(3)
3
(1)
MAXIMUM INVERTER OUTPUT CURRENT
WALL TEMPERATURE FACTOR
OUTPUT CALCULATIONS
PV SYSTEM MAX DC OUTPUT
PV SYSTEM MAX AC OUTPUT
1.25
0.91
(2)
(1)
25
Pmax (PTC Rating)
#10 AWG THWN-2
WIRE CHART WIRE CHART
a b c
3 BRANCH CIRCUITS
INVERTER OUTPUT MAX CURRENT
COEFFICIENT 1.25
7
BRANCH CIRCUIT CURRENT a: 7 BREAKER SIZE PER BRANCH CRCT
20A
0.8ADJST. FACTOR (4 thru 6 WIRES)
**1.257 1.21 10.6A
ADJUSTED CONDUCTOR AMPACITY
/ / 13.6 0.58 0.8 29.3A
NUMBER OF MICROINVERTERS
10.00KW
9.25KW
FROM FUSED DISCONNECT TO MAIN SERVICE PANEL
#6 AWG PV WIRE, 3/4'' LIQUID TIGHT FLEXIBLE NON-METALIC (LFNC) CONDUIT(3)
(1) #6 AWG CU EGC SEPARATE EMT CONDUIT
4
5
EGC WILL RUN IN A SEPARATE EMT CONDUIT TO GROUND BAR 1/2'' EMT CONDUIT
WIRE CHART
QTY
CONSIDER CONTINUOUS COEFFICIENT
CONSIDER CONTINUOUS (A)1.25**25 1.21 37.8
*1.25 / 0.91*25 1.21 41.6
#8 AWG THWN-2
TEMPERATURE ADJUSTMENT (A)
25
Attention!!!!!!!
Need Calculation
(don't delete this note)
25
25
400W
* 400
381.5W
* 381.5 *
REC400AA PURE
#8 AWG CU EGC,
#8 AWG CU EGC, 3/4'' EMT TYPE CONDUIT
1'' PVC TYPE CONDUIT
Voltage drop: 0.59
Voltage drop percentage: 0.24%
Voltage at the end: 239.41
(4)
(1)
#10 AWG THWN-2
#8 AWG CU EGC,
2.2
FROM PV MODULES TO JBOX2
#12 AWG Q-CABLE, PV WIRE(4) 1.2
(1) #6 AWG BARE CU EGC
9 9
BRANCH CIRCUIT CURRENT b,c: 9 BREAKER SIZE PER BRANCH CRCT
20A**1.259 1.21 13.6A
3/4'' EMT TYPE CONDUIT 3/4'' EMT TYPE CONDUIT
2327 N Spurgeon
St11/17/22
10.28 A
CODE REQUIRED
SIGNAGE
4
PV SYSTEM
AS INDICATED
SEPTEMBER 13, 2022
JOSHUA CANTOR
2327 N SPURGEON ST
SANTA ANA, CA 92706
Current Insight, LLC
2852 W. Amini Way
South Jordan, UT
84095
Drafted By:
Solar 360
Building Services, Inc
Address:
1586 N. Batavia St.
Orange , CA 92867
Phone Number:
888-688-4946
info@solar-360.com
License #: 985010-B
Drawn By : Narek A.
CONTRACTOR
60 Hz
290 W
N/A
CAUTION
NEC 705.10(B) & NEC 690.56(B)
Permanent directory or plaque providing location of service disconnecting means and
photovoltaic system disconnecting means, if not located at the same location. (Plaques shall
be metal or plastic, with engraved or machine printed letters, or electro-photo plating, in a
contrasting color to the plaque. Plaques shall be permanently attached to the equipmenq or in the
required location using an approved method that is suitable to withstand the environment to which it
is exposed. Plaques and signage shall meet legibility, defacemet, exposure and adhesion
requirements of Underwriters Laboratories marking and labeling system 969(UL969).
Plaques will have red background & white lettering.
N
0°
S
180°
E
90°
W
270°
POWER TO THIS BUILDING IS ALSO SUPPLIED
FROM THE FOLLOWING SOURCES WITH
DISCONNECTS LOCATED AS SHOWN:
JB
B
O
X
WARNING
ELECTRICAL SHOCK HAZARD
TERMINALS ON THE LINE AND
LOAD SIDES MAY BE ENERGIZED
IN THE OPEN POSITION
NEC 690.13(B)
TURN OFF PHOTOVOLTAIC
AC DISCONNECT PRIOR TO
WORKING INSIDE PANEL
NEC 110.27(C) & OSHA 1910.145(f)(7)
DC
D
i
s
c
o
n
n
e
c
t
ELECTRICAL SHOCK HAZARD
TERMINALS ON THE LINE AND
LOAD SIDES MAY BE ENERGIZED
IN THE OPEN POSITION
NEC 690.13(B)
DC VOLTAGE IS ALWAYS PRESENT
WHEN SOLAR MODULES
ARE EXPOSED TO SUNLIGHT NEC 690.53
NEC 690.13(B)
In
v
e
r
t
e
r
/
P
V
L
o
a
d
WARNING
THE DISCONNECTION OF THE
GROUNDING CONDUCTOR(S)
MAY RESULT IN OVERVOLTAGE
ON THE EQUIPMENT
NEC 690.31(I)
NEC 690.54
AC
D
i
s
c
o
n
n
e
c
t
NEC 690.54
NEC 690.52
WARNING
ELECTRICAL SHOCK HAZARD
TERMINALS ON THE LINE AND
LOAD SIDES MAY BE ENERGIZED
IN THE OPEN POSITION
NEC 690.13(B)
PM
M
E
T
E
R
NEC 705.12(D)(3) & NEC 690.59
Ma
i
n
/
S
u
b
P
a
n
e
l
NEC 690.54
NEC 690.13 (F), NEC 705.12(B)(3-4) & NEC 690.59
NEC 705.12(D)(3) & NEC 690.59
NEC 690.15 (C) & NEC 690.33(E)(2)
NEC 690.13(B)
SINGLE 120-VOLT SUPPLY
DO NOT CONNECT
MULTIWIRE BRANCH CIRCUIT
NEC 710.15(C) & 692.9 (C)
TURN OFF PHOTOVOLTAIC
AC DISCONNECT PRIOR TO
WORKING INSIDE PANEL
NEC 110.27(C) & OSHA 1910.145(f)(7)
WARNING
ELECTRICAL SHOCK HAZARD
TERMINALS ON THE LINE AND
LOAD SIDES MAY BE ENERGIZED
IN THE OPEN POSITION
NEC 690.13(B)
NEC 705.12 (B)(2)(c)
LABELING REQUIREMENTS FOR ARTICLE 690
NEC 690.13(B) Each PV system disconnecting means shall plainly indicate whether
in the open (off) or closed (on) position and be permanently marked “PV SYSTEM
DISCONNECT” or equivalent. Additional markings shall be permitted based upon
the specific system configuration. For PV system disconnecting means where the
line and load terminals may be energized in the open position, the device shall be
marked with the following words or equivalent.
NEC 690.13(F) Type of Disconnect. A dc PV system disconnecting means shall be
marked for use in PV systems or be suitable for backfeed operation.
NEC 690.15(C) An isolating device shall be rated to open the maximum circuit
current under load or be marked “Do Not Disconnect Under Load” or “Not for
Current Interrupting.”
NEC 690.31(B)(1) PV system circuit conductors shall be identified at all accessible
points of termination, connection and splices. The means of identification shall be
permitted by separate color coding, marking tape, tagging or other approved means.
NEC 690.31(G)(1) Where circuits are embedded in build up, laminate or membrane
roofing materials not covered by PV modules and associated equipment, the location
of the circuits shall be clearly marked.
NEC 690.31(G)(4) PV dc system circuit labels shall appear on every section of the wiring
system that is separated by enclosures, walls, partitions, ceilings, or floors. Spacing between
labels or markings, or between a label and a marking, shall not be more than 3 m (10 ft).
Labels required in this section shall be suitable for the environment where they are installed.
NEC 690.31(I) Solidly-grounded bipolar PV systems shall be clearly marked with a permanent,
legible warning notice indicating that the disconnection of the grounded conductor(s) may
result in overvoltage on the equipment.
NEC 690.33(E)(2) Interruption of Circuit. Connectors shall be a type that requires the use of a
tool to open and marked “Do Not Disconnect Under Load” or “Not for Current Interrupting.”
NEC 690.52 Alternating-current modules shall be marked with identification of terminals or
leads and with identification of the following ratings.
NEC 690.53A permanent label for the dc PV power source indicating items (1) through (3)
shall be provided by the installer at dc PV system disconnecting means and at each dc
equipment disconnecting means required by 690.15. Where a disconnecting means has more
than one dc PV power source, the values in 690.53 (1) through (3) shall be specified for each
source.
NEC 690.54 All interactive system(s) points of interconnection with other
sources shall be marked as an accessible location at the disconnecting
means as a power source and with the rated ac output current and the
nominal operating ac voltage.
NEC 690.55 The PV system output circuit conductors shall be marked to
indicate polarity where connected to energy storage systems.
NEC 690.56(B)Plaques or directories shall be installed in accordance with
705.10.
NEC 690.56(C)(3) A rapid shutdown switch shall have a label located on
or no more than 1 meter (3 ft) from the switch that includes the following
wording.
NEC 690.56(C)(1)(a-b) The type of PV system shall be labeled as described
in a) or b):
NEC 690.59 PV systems connected to other sources shall be installed in
accordance with Parts I and II of Article 705.
SOLAR ELECTRIC
PV PANELS
SOLAR PV SYSTEM EQUIPPED
WITH RAPID SHUTDOWN
TURN RAPID SHUTDOWN
SWITCH ON THE
"OFF" POSITION TO
SHUTDOWN PV SYSTEM
AND REDUCE
SHOCK HAZARD
IN ARRAY
IFC 605.11.3.1(1) & 690.56(C)(1)(a)
NEC 690.56(C)(3)
NEC 690.31(G)(3)(4)
NEC 690.31(G)(1)CO
N
D
U
I
T
RATED AC OUTPUT CURRENT:
NOMINAL OPERATING AC VOLTAGE:
PHOTOVOLTAIC AC DISCONNECT
MAXIMUM VOLTAGE
MAXIMUM CIRCUIT CURRENT
MAX RATED OUTPUT CURRENT OF
THE CHARGE CONTROLLER
OR DC-TO-DC CONVERTER
(IF INSTALLED)
DC DISCONNECT
PHOTOVOLTAIC
WARNING WARNING DUAL POWER SOURCE
SECOND SOURCE IS PHOTOVOLTAIC SYSTEM
RATED AC OUTPUT CURRENT:
NOMINAL OPERATING AC VOLTAGE:
PHOTOVOLTAIC AC DISCONNECT NOMINAL OPERATING AC VOLTAGE
NOMINAL OPERATING AC FREQUENCY
MAXIMUM AC POWER
MAXIMUM AC CURRENT
MAX OVERCURRENT DEVICE RATING
FOR AC MODULE PROTECTION
RATED AC OUTPUT CURRENT:
NOMINAL OPERATING AC VOLTAGE:
PHOTOVOLTAIC AC DISCONNECT WARNING DUAL POWER SOURCE
SECOND SOURCE IS PHOTOVOLTAIC SYSTEM
MAIN PHOTOVOLTAIC
SYSTEM DISCONNECT WARNING
CAUTION
PHOTOVOLTAIC SYSTEM CIRCUIT IS BACKFED
WARNING
POWER SOURCE OUTPUT
CONNECTION. DO NOT
RELOCATE THIS
OVERCURRENT DEVICE.
WARNING
DO NOT DISCONNECT
UNDER LOAD
RAPID SHUT DOWN SWITCH
FOR SOLAR PV SYSTEM
WARNING: PHOTOVOLTAIC
POWER SOURCE
WARNING
PHOTOVOLTAIC POWER SOURCE
DO NOT REMOVE UNLESS REPLACED IN EXACT LOCATION - PV POWER CIRCUIT DIRECTLY BELOW
WARNING
FOR PV SYSTEMS THAT SHUT DOWN THE ARRAY
AND CONDUCTORS LEAVING THE ARRAY: SIGH TO
BE LOCATED ON OR NO MORE THAN 3 FT AWAY
FROM SERVICE DISCONNECTING MEANS TO WHICH
THE PV SYSTEMS ARE CONNECTED AND SHALL
INDICATE THE LOCATION OF ALL IDENTIFIED RAPID
SHUTDOWN SWITCHES IF NOT AT THE SAME
LOCATION. [CEC 690.56(C)(1)(A)]
54.66 V
240 Vac
240 Vac
240 Vac
240 Vac
NEC 690.13(B)
AC DISCONNECT
PHOTOVOLTAIC
N/A
SERVICE POINT &
UTILITY METERING
PV SYSTEM DISCONNECT
FOR UTILITY OPERATION
30.25 A
30.25 A
30.25 A
30.25 A
IQ COMBINER BOX
SOLAR ARRAY
ON THE ROOF
PV SYSTEM DISCONNECT
FOR UTILITY OPERATION
N
S
p
u
r
g
e
o
n
S
t
SOLAR ARRAY
ON THE ROOF
2327 N Spurgeon
St11/17/22
ATTACHMENT
LAYOUT
5
PV SYSTEM
AS INDICATED
SEPTEMBER 13, 2022
JOSHUA CANTOR
2327 N SPURGEON ST
SANTA ANA, CA 92706
Current Insight, LLC
2852 W. Amini Way
South Jordan, UT
84095
Drafted By:
Solar 360
Building Services, Inc
Address:
1586 N. Batavia St.
Orange , CA 92867
Phone Number:
888-688-4946
info@solar-360.com
License #: 985010-B
Drawn By : Narek A.
CONTRACTOR
STRUCTURAL STAMPROOF
PITCH
ROOFING
TYPE
ATTACHMENT
TYPE
FRAMING
TYPE
FRAMING
SIZE
PENETRATION
PATTERN
5°
RACKING
TYPE
MAX
PENETRATION
SPACING
ROOFING
LAYERS
WIND SPEED 9 5 MPH EXPOSURE C
LAG BOLTS MOUNTS AND MOUNTING HARDWARE WILL BE
SEALED WITH CHEM LINK SEALANT OR EQUIVALENT.
MODULE WEIGHT (LBS)
# OF MODULES
TOTAL MODULE WEIGHT (LBS)
RACK WEIGHT (LBS)
TOTAL SYSTEM WEIGHT (LBS)
# OF STANDOFFS
LOADING PER STANDOFF (LBS)
TOTAL MODULE AREA (SQ.FT.)
LOADING (PSF)
WEIGHT LOAD CALCULATION INDEX
ROOF SHEATHED WITH 1/2" PLYWOOD AND UPPER
SURFACE IS FACED WITH FELT PAPER
TOTAL ROOF AREA (Sq. FT)
% OF COVERED AREA
PV MODULE MODEL #
MICROINVERTER WEIGHT (LBS)
7
Roof 1 Layer ROLLED COMP Unirac TRUSS Staggered 64"2"X4" @ 24" O.C Unirac Standoff
5/16" X 3.5" MIN 2.5" EMBEDMENT
RACKING RAIL
ATTACHMENT
ROOF FRAMING
15
140
305
316
63
17
396
26.4
2.83
45.9
ROOF
ASCE 7-16
45.2
REC400AA PURE
SOLAR MODULE
18
GARAGEHOUSE
42
360
1970
814
163
43
1019
24.3
2.83
18.3
Max 3.5''
64" 16"
(E) HOUSE
(E) GARAGE
64" 16"
2327 N Spurgeon
St11/17/22
76 North Meadowbrook Drive
Scott E. Wyssling, PE Alpine, UT 84004
Jon P. Ward, SE, PE office (201) 874-3483
Gregory T. Elvestad, PE swyssling@wysslingconsulting.com
September 21, 2022
Current Insight
2852 W. Amini Way
South Jordan, UT 84095
Re: Engineering Services
Canor Residence
2327 N Spurgeon Street, Santa Ana, CA
10.000 kW System
To Whom It May Concern:
We have received information regarding solar panel installation on the roof of the above referenced
structure. Our evaluation of the structure is to verify the existing capacity of the roof system and its ability
to support the additional loads imposed by the proposed solar system.
A. Site Assessment Information
1. Site visit documentation identifying attic information including size and spacing of framing
for the existing roof structure.
2. Design drawings of the proposed system including a site plan, roof plan and connection
details for the solar panels. This information will be utilized for approval and construction
of the proposed system.
B. Description of Structure:
Roof Framing: Prefabricated wood trusses at 24” on center. All truss members are
constructed of 2x4 dimensional lumber.
Roof Material: Rolled Composite Shingles
Roof Slope: 5 degrees
Attic Access: Accessible
Foundation: Permanent
C. Loading Criteria Used
• Dead Load
o Existing Roofing and framing = 7 psf
o New Solar Panels and Racking = 3 psf
o TOTAL = 10 PSF
• Dead Load
o Existing Roofing and framing = 7 psf
o New Solar Panels and Racking = 3 psf
o TOTAL = 10 psf
• Live Load = 20 psf (reducible) – 0 psf at locations of solar panels
• Ground Snow Load = 0 psf
• Wind Load based on ASCE 7-16
o Ultimate Wind Speed = 95 mph (based on Risk Category II)
o Exposure Category C
Analysis performed of the existing roof structure utilizing the above loading criteria is in accordance
with the 2019 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.
2327 N Spurgeon
St11/17/22
Page 2 of 2
D. Solar Panel Anchorage
1. The solar panels shall be mounted in accordance with the most recent Unirac 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 235 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 centers.
4. Panel supports connections shall be staggered to distribute load to adjacent framing members.
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 2019 California Building Code, current industry standards, 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
2327 N Spurgeon
St11/17/22
Wyssling Consulting
76 N. Meadowbrook Drive
Alpine, UT 84004
(201) 874-3483
swyssling@wysslingconsulting.com
Existing Canor Residence
Roof Dead Load 2327 N Spurgeon Street
2 psf Composite Shingle Santa Ana, CA
1 psf 7/16" Plywood Sheathing
4 psf 2x4 Trusses @ 24 in. o.c.
4 psf Ceiling, Mechanical, Electrical
0 psf Miscellaneous
11 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 = 1.00 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
71435 lbs
Total New Roof Load = (DLROOF + DLADD + Max(LLROOF or S)) AreaROOF
62751 lbs
Change in Demand = (Total New Roof Load - Existing Roof Load) / Existing Roof Load
-12.16%
2018 IEBC Section 807.4 states:
"Existing structural elements supporting any additional gravity loads as a result of the alterations, including the
effects of snow drift , shall comply with the International Building Code. EXCEPTION: 1. Structural elements whose
stress is not increased by more than 5%."
Gravity Loads
Total New Gravity Loads are less than Existing Loads. OK
2327 N Spurgeon
St11/17/22
Wyssling Consulting
76 N. Meadowbrook Drive
Alpine, UT 84004
(201) 874-3483
swyssling@wysslingconsulting.com
V = 95 Basic Wind Speed Canor Residence
Exposure C ASCE 7-16, Section 26.7 2327 N Spurgeon Street
Kz = 0.85 Velocity Pressure Coefficient, ASCE 7-16, Figure 26.10-1 Santa Ana, CA
Kzt = 1 Topographic Factor, ASCE 7-16, Section 26.8.2
Kd = 0.85 Directionality Factor, ASCE 7-16, Section 26.6
Ke = 0.996 Ground Elevation Factor, ASCE 7-16, Section 26.9
qh = 16.6 psf qh = 0.00256KzKztKdKeV2 (ASCE 7-16 Eq. 26.10-1)
Roof Angle = 5 deg
Roof Type Gable
sanchor = 64 in Horizontal spacing of roof anchors
Atrib = 15.93 sf Panel Area tributary to each roof anchor
GCp External Pressure Coefficient, ASCE 7-16, Figure 30.3-2
Roof Zone Zone 1 1' Zone 2 Zone 3
-1.69 -0.90 -2.29 -3.18
ga = 0.77 Pressure Equalization Factor, ASCE 7-16 Figure 29.4.-8
gE = 1.00 Edge Array Factor, ASCE 29.4.3 edges < 0.5*building height, and panel spacing < 4ft.
pnet = qhGCpgEga = Design Wind Pressure, ASCE 7-16, Equation 29.4-7
Roof Zone 1 1' Zone 2 Zone 3
-22 psf -12 psf -29 psf -41 psf Min Pressure = -16 psf
Use 22 psf Use 16 psf Use 29 psf Use 41 psf ULTIMATE
x 0.6 = 16 psf 16 psf 18 psf 25 psf ALLOWABLE
Connection to Existing Roof Framing
F.S. = 1 Additional Factor of Safety applied to withdrawl force, if desired
Atrib = 15.9 ft2
DLpanel = 3 psf
Roof Zone 1 1'Zone 2 Zone 3
Wuplift = 22 psf 16 psf 29 psf 41 psf
Plag = F.S. x Atrib x (0.6D - 0.6W) = Withdrawl force for each roof anchor
Roof Zone 1 1' Zone 2 Zone 3
-183.5 lbs -128.5 lbs -257.0 lbs -366.3 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 = 266 lb/in Withdrawl Capacity, NDS Equation 11.2-1
W' = CD x Ct x W = 298 lb/in Adjusted withdrawl value
Pallow = Dpen x W' = 745 lbs
Roof Zone 1 1' Zone 2 Zone 3
DEMAND = 184 lbs 128 lbs 257 lbs 366 lbs
CAPACITY = 745 lbs 745 lbs 745 lbs 745 lbs
up to72in ok up to72in ok up to72in ok up to72in ok
Douglas Fir-Larch
Wind Uplift
Rooftop Solar Panels Parallel to Roof Surface
ASCE 7-16, Section 29.4.4
This analysis calculates the
capacity of the lag screws
only. For capacity of the
complete mounting system,
please see manufacturer's
recommendations.
2327 N Spurgeon
St11/17/22