City of Lake Forest (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

IEBC Accepted: 1

ASCE Code Specification: ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status: Adopted

Date SolarAPP+ Accepted: 45153

Any SolarAPP+ Restrictions: 1

SolarAPP+ Restrictions: Existing Systems,Trenching,MPU

How Many Plansets Required: 3

Revision Required: 1

Rough Inspection: None

New Planset Required For Module Swap: 0

Stamps

Ee Stamp Required On SLD: Yes - 10kW+

Wet Stamps Required: Digital Structural

Structural Calculations Required: Yes

Ee Stamp Notes

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: SE digital stamps on corresponding PV pages, PE Letter & Calcs. PE calcs should specify the size, # and embedment of the lag screws.

Minimum Ground On Roof: #10

Electrical

AC Disconnect Required: Yes

Electrical Load Calcs Required: Derates

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

Panel Schedule Required: Partial Home Backup

Temperature Rating: 90

De Rating Ampacity: 1

Battery / ESS

Unique Battery Placards Needed: 0

ESS Notes

Standard

ESS disconnect required within line of site of ESS on same wall and not blocked by walls/gates/etc

Separate ESS Disconnect Required: ESS Disconnect

ESS Elevation Detail Required: No

Plan set

Plan Set Requirements

Plans should include the percentage of sq. footage of the roof vs. percentage of the sq. foot of the array as per new fire regulation

Cover Page: Show number of stories on cover page

Cover Page Notes

Battery [Heat detector to be interconnected to the smoke detector system]

(Note only required when battery is interior)

Attachment Detail: * Specify the size and # of the lag screws

Electrical Diagram: If adding a subpanel, provide a panel schedule for the sub.

Label Page

On the Area placard: please specify if the system is equipped with rapid shutdown, if not provide a dotted line around the area that remains energized after the rapid shut down switch is operated

2017 LABELS

Label Page Notes: include street name/address on placard Include the RSD label with an image of a home on it. An image of required label is in the files below.

Custom Placards Required: 1

Placards Notes

ESS PROJECTS - ALL PLACARDS MUST INCLUDE 'ESS DISCONNECT' SPECIFIED ON DISCONNECT PLACARD

NOTE - FOR ALL EXISTING SYSTEMS - EXISTING SYSTEM AND NEW SYSTEM MUST BE SEPARATED WITH SEPARATE 'SYSTEM A' AND 'SYSTEM B' LABELS, AND MAIN PLACARD MUST DIFFERENTIATE BETWEEN SYSTEM A & B

Ground mount

Ground Mount Fencing Required: No