HomeMy WebLinkAbout1066 W 3rd St - PlanExpedited 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.
1066 W 3rd St
05/18/23
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:
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)_________________ 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.
1066 W 3rd St
05/18/23
Ex
p
e
d
i
t
e
d
P
e
r
m
i
t
P
r
o
c
e
s
s
f
o
r
P
V
S
y
s
t
e
m
s
3
Micro-Inverter Site Plan
1066 W 3rd St
05/18/23
Ex
p
e
d
i
t
e
d
P
e
r
m
i
t
P
r
o
c
e
s
s
f
o
r
P
V
S
y
s
t
e
m
s
4
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
1066 W 3rd St
05/18/23
Ex
p
e
d
i
t
e
d
P
e
r
m
i
t
P
r
o
c
e
s
s
f
o
r
P
V
S
y
s
t
e
m
s
5
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 (P MAX)
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
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
BLDG # 101115097 ISS. 05/17/2023
ELEC# 20179652 ISS. 05/17/2023
***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. ***
1066 W 3rd St
05/18/23
AC
D
MS
P
UM
CB
JB
~1
2
5
.
0
0
'
~50.00'
~1
2
5
.
0
0
'
~50.00'
17
'
-
8
"
4'-2"
30
'
-
8
"
13'-6"
AC
D
MS
P
UM
CB
SITE PLAN WITH ROOF PLAN
REV
SHEET NAME
SHEET NUMBER
DATE DESCRIPTION
VERSION
PV-1
PROJECT NAME
UR04/08/2023 INITIAL RELEASE
AR
T
U
R
O
V
E
N
E
G
A
S
V
I
L
L
E
G
A
S
10
6
6
W
3
R
D
S
T
,
SA
N
T
A
A
N
A
,
C
A
9
2
7
0
3
U
S
A
UT
I
L
I
T
Y
:
S
C
E
AH
J
:
C
I
T
Y
O
F
S
A
N
T
A
A
N
A
SHEET SIZE
ANSI B
11" X 17"
EMPOWER ELECTRIC SOLAR
1300 E SHAW AVE,173
FRESNO, CA 93710
TEL: (559) 360-9292
CSLB: 1057693
Email : permits@mpwrsolar.com
AP
N
:
4
0
5
1
6
3
0
3
SITE PLAN WITH
ROOF PLAN
1 SCALE: 1/16" = 1'-0"
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 IN
LOCATIONS WHERE THE ACCESS POINT DOES NOT CONFLICT WITH OVERHEAD
OBSTRUCTIONS SUCH AS TREE LIMBS, WIRES OR SIGNS.
NOTE:
A. ALL ELECTRICAL EQUIPMENT, INVERTERS,
DISCONNECTS, MAIN SERVICE PANELS, ETC. SHALL
NOT BE INSTALLED WITHIN 3 OF THE GAS METERS
SUPPLY OR DEMAND PIPING.
NOTE: * 3/4" OR GREATER IMC, RMC, FMC, LFMC, PVC,
HDPE, NUCC, RTRC, LFNC, FMT, ENT OR EMT
CONDUIT RUN EXPOSED CONDUIT RUN SHALL BE
MIN. 7/8" ABOVE ROOF. * ROMEX RUN INSIDE ATTIC
67.79"
44
.
6
4
"
PHOTOVOLTAIC MODULES
JA SOLAR JAM54S31-395/MR (395W)
LEGEND
UTILITY METER
AC DISCONNECT
JUNCTION BOX
UM
ACD
JB
MSP MAIN SERVICE PANEL
ENPHASE IQ COMBINER 3CB
GATE
FENCE
CONDUIT
PROPERTY
TREES
VENT, ATTIC FAN
(ROOFOBSTRUCTION)
(E
)
D
E
T
A
C
H
E
D
GA
R
A
G
E
(N) 3/4" OR GREATER EMT CONDUIT
RUN (7/8 INCHES ABOVE ROOF)
PROPERTY LINE
PR
O
P
E
R
T
Y
L
I
N
E
PROPERTY LINE
PR
O
P
E
R
T
Y
L
I
N
E
W 3RD ST
ROOF ACCESS POINT
ONE- STORY
HOUSE
(E) STRUCTURE (TYP.)
EXISTING
DRIVEWAY
10 Apr 2023
EXP : 30 Sep 2023
STRUCTURAL ONLY
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23
1066 W 3rd St
05/18/23