City of Pomona (CA)

California Authority Having Jurisdiction Solar permitting requirements

NEC Code Version2023

Fire Code Version2018 Building Code

SolarAPP+ StatusAdopted

Wet Stamps RequiredDigital Structural

Fire Setback Enforced1

Codes

NEC Code Version: 2023

Fire Code Version: 2018 Building Code

Code List

2025 CALIFORNIA BUILDING CODE

2025 CALIFORNIA ELECTRICAL CODE

2025 CALIFORNIA FIRE CODE

2025 CALIFORNIA PLUMBING CODE

2025 CALIFORNIA MECHANICAL CODE

2025 CALIFORNIA ENERGY CODE

2025 CALIFORNIA RESIDENTIAL CODE

2025 CALIFORNIA ADMINISTRATIVE CODE

ASCE Code Specification: ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status: Adopted

Date SolarAPP+ Accepted: 45201

Any SolarAPP+ Restrictions: 1

SolarAPP+ Restrictions: Existing Systems,Trenching

How Many Plansets Required: 2

Revision Required: 1

Rough Inspection: None

New Planset Required For Module Swap: 0

Stamps

Ee Stamp Required On SLD: No

Wet Stamps Required: Digital Structural

Structural Calculations Required: Yes

Stamp Location On Plans: Unspecified

Date On Stamps: Expiration Date

Fire setbacks

Fire Setback Enforced: 1

Setback Notes: Standard

Structural & loads

Wind Speed: 110

Wind Notes: Exposure Category B

Snow Load: 0

Snow Load Notes: N/A

Reducible Snow Load Allowed: 1

Max Attachment Spacing: 96

Structural Notes: Provide calculations for the anchorage of the PV modules to the existing roof structure. The calculations should include a shear and uplift check with the shear forces based on the more restrictive of wind and seismic loads

Minimum Ground On Roof: #10

Electrical

Electrical Load Calcs Required: Derates

Allowed POI: Line Side Taps,Meter Adapter,PV Breaker,Load Side Taps

Panel Schedule Required: Partial Home Backup

Temperature Rating: 90

De Rating Ampacity: 0.96

BOS Restrictions: Standard

Battery / ESS

Unique Battery Placards Needed: 0

ESS Notes

[LACOF]

This AHJ follows County of Los Angeles (ESS Requirements) (CA).

Please follow this link to County of Los Angeles (ESS Requirements) (CA)

ESS disconnect required within 6ft of MSP on same wall and not blocked by walls/gates/etc

Separate ESS Disconnect Required: Local Disconnect,ESS Disconnect

ESS Elevation Detail Required: Yes - with dimensions

Plan set

Plan Set Requirements

Fire setbacks can not be crossed whatsoever. If a fire setback is in place and we use jumpers or any pipe along them, pass through them, etc it will not pass inspection. Please opt for an automatic attic run if not run the conduit along the side of the house staying out of fire setback.

A3. R324.6.1 Pathways: Not less than two minimum 36-inchwide pathways on separate roof planes, from the lowest roof edge to the ridge, shall be provided on all buildings. At least one pathway shall be provided on the street or driveway side of the roof. For each roof plane with a photovoltaic array, a minimum 36-inchwide pathway from the 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. Pathways shall be over areas capable of supporting firefighters accessing the roof. Pathways shall be located in areas with minimal obstructions such as vent pipes, conduit, or mechanical equipment.

PROVIDE DIMENSIONS ON THE PLANS FOR MODIFIED SETBACKS:

A4. R324.6.2 Setback at ridge: For photovoltaic arrays occupying not more than 33 percent of the plan view total roof area, not less than an 18-inch clear set back is required on both sides of a horizontal ridge. For photovoltaic arrays occupying more than 33 percent of the plan view total roof area, not less than a 36-inch clear set back is required on both sides of a horizontal ridge.

_PROVIDE THE TOTAL ROOF AREA AND THE TOTAL SQUARE FOOTAGE OF THE ARRAY AREA. NOTE THE PERCENTAGE ON THE PLANS AND LABEL THE SETBACKS ACCORDINGLY_

A5. R324.6.2.1 Alternative setback at ridge: Where an automatic sprinkler system is installed within the dwelling in accordance with NFPA 13D setbacks at ridges shall conform with one of the following:

1. For photovoltaic arrays occupying not more than 66 percent of the plan view total roof area, not less than an 18-inch clear setback 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, not less than a 36-inch clear setback is required on both sides of a horizontal ridge.

Cover Page

Provide a scope of work on cover sheet which includes

Occupancy Group and Construction Type *
Risk Category (Use: DC SYSTEM SIS *
Seismic Design Category *
System DC rating in kW *
# of modules and square footage of array *
Ground or Roof Mount *
Square footage of roof and # of stories, if applicable *
# of inverters *
PV system grounding configuration(s) used [CEC 690.41(A)] - *
Energy storage, type and capacity in kWh -or- No energy storage - *
ESS Location *
Other new equipment to be installed *
Line or Load side interconnection *
Existing service size and whether existing service will be de-rated *
New service size, if applicable *
Whether existing fire sprinklers are present *
Whether existing PV solar is present *
Summary of other electric power production sources, if any, on the premises

Cover Page Notes: All jobs [CONDUCTORS NORMALLY USED TO CARRY CURRENT SHALL BE OF COPPER. FOR ALUMINUM AND COPPER-CLAD ALUMINUM #6 AWG AND LARGER, SEE SEC. 310.15 CEC. EXCEPTION: ALUMINUM CONDUCTORS SMALLER THAN #6 AWG MAY BE USED PROVIDED THE METHOD OF CONNECTION IS APPROVED IN ADVANCE BY THE BUILDING OFFICIAL AND THE INSTALLATION IS MADE UNDER CONTINUOUS SPECIAL INSPECTION. // A SMOKE DETECTOR, APPROVED AND LISTED BY THE STATE FIRE MARSHAL, SHALL BE INSTALLED IN EACH DWELLING WHEN A PERMIT FOR ALTERATIONS, REPAIRS OR ADDITIONS EXCEEDS $1,000.00. A BATTERY POWERED SMOKE DETECTOR SATISFIES THE REQUIREMENTS FOR A SMOKE DETECTOR. (R314.2.2 CRC) // PROVIDE SMOKE ALARMS AT THE FOLLOWING LOCATIONS AND NOTE ON THE PLANS; (R314.3.4 CRC) A. OUTSIDE EACH SEPARATE SLEEPING AREA IN THE IMMEDIATE VICINITY OF BEDROOMS. B. IN EACH ROOM USED FOR SLEEPING PURPOSES. C. IN EACH STORY, INCLUDING BASEMENTS. IN SPLIT LEVEL UNITS WITHOUT AN INTERVENING DOOR BETWEEN ADJACENT LEVELS, A SMOKE ALARM INSTALLED ON THE UPPER LEVEL SHALL SUFFICE PROVIDED THAT THE LOWER LEVEL IS LESS THAN ONE FULL STORY BELOW THE UPPER LEVEL. D. ALARMS SHALL BE INTERCONNECTED SUCH THAT THE ACTUATION OF ONE ALARM SHALL ACTIVATE ALL ALARMS. E. ALARMS SHALL RECEIVE THEIR PRIMARY POWER FROM THE BUILDING WIRING WITH BATTERY BACKUP. F. APPROVED COMBINED SMOKE ALARMS AND CARBON DIOXIDE ALARMS SHALL BE ACCEPTABLE. // WHERE AN ADDITION IS MADE TO AN EXISTING DWELLING, OR A FUEL-BURNING HEATER, APPLIANCE, OR FIREPLACE IS ADDED TO AN EXISTING DWELLING, NOT PREVIOUSLY REQUIRED TO BE PROVIDED WITH CARBON MONOXIDE ALARMS, NEW CARBON MONOXIDE ALARMS SHALL BE INSTALLED IN ACCORDANCE WITH CRC SECTION R315.2.2 // APPLICATIONS FOR WHICH NO PERMIT IS ISSUED WITHIN 180 DAYS FOLLOWING THE DATE OF APPLICATION SHALL AUTOMATICALLY EXPIRE. // EVERY PERMIT ISSUED SHALL BECOME INVALID UNLESS WORK AUTHORIZED IS COMMENCED WITHIN 180 DAYS, A SUCCESSFUL INSPECTION IS NOT OBTAINED WITHIN 180 DAYS, OR IF WORK IS SUSPENDED OR ABANDONED FOR A PERIOD OF 180 DAYS. PERMITS WHICH HAVE BECOME INVALID SHALL PAY A RENEWAL FEE OF 50% OF THE ORIGINAL PERMIT FEE AMOUNT WHEN THE PERMIT HAS BEEN EXPIRED FOR UP TO ONE (1) YEAR. WHEN A PERMIT HAS BEEN EXPIRED FOR A PERIOD IN EXCESS OF ONE (1) YEAR, THE RENEWAL FEE SHALL BE 100% OF THE ORIGINAL PERMIT FEE. // THE CONTRACTOR SHALL PROVIDE A WRITTEN LETTER TO THE BUILDING INSPECTOR STATING THAT ALL INACCESSIBLE STRUCTURAL CONNECTIONS HAVE BEEN INSTALLED IN CONFORMANCE WITH THE REQUIREMENTS OF THE APPROVED PLANS. // PROJECT SHALL COMPLY WITH 2025 CEC, CALIFORNIA ELECTRICAL CODE. // PANELS AND MODULES INSTALLED ON SHALL NOT BE PLACED ON THE PORTION OF THE ROOF THAT IS BELOW AN EMERGENCY ESCAPE AND RESCUE OPENING. A 36" WIDE PATHWAY SHALL BE PROVIDED // the installer LLC. will be installing the system. Business & Professional Code 5536, 5537.2, 5537.4 and 6737.3 // All equipment shall be listed and labeled by a Nationally Recognized Testing Laboratory (NRTL).]

Site

All Jobs

Building type of construction (usually VB).
A. Occupancy group(s) of dwelling and garage (R3 & U)
B. Building height above grade plane/number of stories

GMAs

Disconnect must be grouped with MSP

Roof Plan

Conduit to be run in attic if possible
Show attachment points on the roof plan
Specify the size and spacing of the existing rafters/truss top chords
If installing on a duplex or other multi-unit housing, list the addresses of the attached units.

Electrical Diagram

120% rule allowed per CEC 705.12(B)(2)(3)(d) No electrical equipment allowed within 36" of gas meter

Add "Nema 3R" to junction box

COMMENTS FROM ELECTRICAL If 90°C rated conductors are to be used for ≤100 Amp circuits, please note on plans that terminations of connected equipment shall be rated at 90°C.

CEC 110.14(C) The new main service disconnect shall be marked permanently

CEC 230.70(B) Show voltage drop calculation for all DC and AC circuitries in accordance with the requirements of CEC 210.19(A) and California Energy Code, Sec. 130.5(c)

Demonstrate compliance to CEC 690.7 by showing the calculation of maximum PV system voltage for the strings in the project. CEC Table 690.7 shall be applied for the project location (Pomona, California).

CEC 690.7 The PV system disconnecting means shall have ratings sufficient for the maximum available short-circuit current at the terminals of the PV system disconnect. Please first provide fault current data for the existing electrical system, then match all new (PV equipment) rating with the existing AIC rating.

CEC 690.13(E) The PV system grounding electrode conductor will be bonded to existing building grounded conductor then connected to ground. Please clarify the sizes of existing grounding electrode conductor and the bonding jumper on one-line at location of the main disconnecting means. CEC Table 250.102(c)1 ; CEC Table 250.66 If relocating loads, need to indicate which loads are being moved.

GMA: Fused AC disconnect will become a 2nd SERVICE DISCONNECT. Provide a note that the equipment specified will be listed and marked suitable for use as service equipment.

CEC 110.9 & 230.66. Provide a cut sheet or other evidence that the device is listed and marked as “suitable for use as service equipment”. The new service disconnect must be grouped with the existing MSP.

Ensure Surge Protective Device is illustrated on single line

Electrical Diagram Notes: Grounded DC PV arrays shall be provided with DC ground-fault protection meeting the requirements of 690.41(B)(1) and (2) to reduce fire hazards. CEC 690.41(B)

Label Page

On the placard, add “PV” in front of the AC disconnect to clarify this disconnect is for photovoltaic, not the utility main. CEC 705.10; .CEC 690.13(B)"

Existing System

Do not make a distinction between new and “existing” since all modules will be existing after the project is complete. (Do not label existing modules with (E) on the placard) *
For buildings that have PV systems with both rapid shutdown types or a PV system with a rapid shutdown type and a PV system with no rapid shutdown, a detailed plan view diagram of the roof shall be provided showing each different PV system and a dotted line around areas that remain energized after the rapid shutdown switch is operated.

GMA

Provide a label at the (N) AC disconnect near the MSP marking it as a service disconnect****

Custom Placards Required: 1

Ground mount

Ground Mount Fencing Required: Mesh/Scrim