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City of Hercules (CA)

California Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
SolarAPP+ StatusAdopted
Wet Stamps RequiredNone
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
45240
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
Existing Systems,Trenching,Derate
How Many Plansets Required
3
Revision Required
0
New Planset Required For Module Swap
0

Stamps

Wet Stamps Required
None
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
Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Structural Notes

Standard

Minimum Ground On Roof
#10

Electrical

AC Disconnect Required
Yes
Electrical Load Calcs Required
Derates
Allowed POI
Line Side Taps,PV Breaker,Load Side Taps,Meter Adapter
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
1

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

Standard

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Plan Set Requirements

Batteries None are listed. Building-wire type cables used? [Chapter 3] NOTE: Welding cables, marine, locomotive (DLO), and auto battery cables don’️t meet the NEC. Flexible, listed USE, RHW, or THW cables are available. Article 400 flexible cables larger than 2/0 AWG are o.k. for battery cell connections, but not in conduit or through walls. [690.74 and 400.8] Flexible fine stranded cables require very limited, specially listed terminals. See stand-alone inverters for ampacity calculations. Access limited? [690.71(b)] Installed in well ventilated areas (garages, basements, out buildings, and not living areas)? NOTE: Manifolds, power venting, and single exterior vents to the outside are not required and should be avoided. Cables to inverters, dc load centers, and/or charge controllers in conduit? Conduit enters the battery enclosure below the tops of the batteries? [300.4] NOTE: There are no listed battery boxes. Lockable heavy-duty plastic polyethylene tool boxes are usually acceptable.

Site

Secondary disco needed if battery is not in line of site of MSP


  •  County of Contra Costa requires a disconnect in line sight of MSP + An additional disconnect in line sight of ESS if ESS is not in line sight of MSP - Does not count internal PW3 disconnect as emergency disconnect
  • If equipment is installed behind fence/gate or not in line sight of MSP, an additional disconnect should be installed next to the equipment
Electrical Diagram

1. CONTRA COSTA STAMPS THIS SLD, SO PLEASE LEAVE ROOM FOR CONTRA COSTA'S 3.5 x 5 stamp.

Custom Placards Required
1
Placards Notes

Permanent placards from placard page of plan set

Non Standard Planset Requirements
Single Line Diagram

Ground mount

Ground Mount Fencing Required
Mesh/Scrim
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the City of Hercules (CA) building department before you rely on this, and treat it as a research head start, not a ruling. Getting quotes? Run them through the quote checker first.