County of Lake (CA)

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

Any SolarAPP+ Restrictions

1

SolarAPP+ Restrictions

Existing Systems,Trenching,MPU,Derate

How Many Plansets Required

2

Revision Required

0

Rough Inspection

None

New Planset Required For Module Swap

0

Stamps

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

85

Wind Notes

Exposure Category B

Snow Load

5

Reducible Snow Load Allowed

1

Max Attachment Spacing

96

Minimum Ground On Roof

#10

Electrical

Electrical Load Calcs Required

Derates

Allowed POI

Meter Adapter,PV Breaker,Line Side Taps,Load Side Taps

Panel Schedule Required

Partial Home Backup

Temperature Rating

90

De Rating Ampacity

0.96

Battery / ESS

Unique Battery Placards Needed

0

ESS Notes

All Jobs

AHJ is very particular about ESS Elevation and clearance. Make sure ESS Elevation includes dimensions of:

• Entire wall/walls where equipment will be mounted.
• Distances between all equipment.
• Horizontal distances between ESS and closest wall openings, AC units, doors, windows, dryer exhaust vents, crawl space vents. ESS MUST maintain 3' from all of these items. (Vertical or diagonal measurements between ESS and wall opening will prompt a rejection.)
• The ESS itself (PW3: 43.25" X 24", PW2: 45.3" X 29.7", Enphase 5P: 38.6" X 21.7" Enphase 10T: 50.5" X 30.5", SolarEdge Energy Bank: 46.4" X 31.1")
• If you have to encroach into the 3' HORIZONTAL measurement between ESS and Crawl Space/Attic vents there is an exception that we can use. Add a M-Leader pointing to the Crawl Space/Attic vents that are within the 3' clearance stating "SELF-SEALING/FIRE RESISTANT VENTS TO BE ADDED". Create a Ticket assigned to branch management to acquire " XX# of Self-Sealing Fire-Resistant Attic/Crawl Space Vents are needed. " Please block Inspection Scheduling with this ticket.

Separate ESS Disconnect Required

ESS Disconnect

ESS Elevation Detail Required

Yes - with dimensions

Plan set

Plan Set Requirements

• If project qualifies for SolarApp, all equipment locations must still be called out
• Buildings located within 1,000 feet of Clear Lake - Exposure C on the side facing the lake only. Buildings located on ridges, in exposed valleys, or on exposed hillsides.
• 2/19/24 if property is in a flood zone and there are batteries being proposed, you need a temporary benchmark from a surveyor

Roof Plan

All Jobs:

• Include the dimensions of the entire roof as well as the dimension of the arrays. Example in files section (This includes projects qualified for SolarApp)

Electrical Diagram

120% allowed from center fed mains

Electrical Diagram Notes

Battery [Producer's storage device(s) will not cause the Host Load to exceed its normal peak demand. Normal peak demand is defined as the highest amount of power required from the Distribution System by Producer's complete facilities without the influence or use of the energy storage device(s).]

Custom Placards Required

1

Ground mount

Ground Mount Fencing Required

Situational

Ground Mount Notes

• Fencing is required on a case-by-case basis. Call ahead with the property address/APN to confirm requirements for a specific project location. Fencing is generally not required in less-developed areas or agricultural zones without animals.
• Minimum soil bearing capacity: 1,000 PSF. A soils report is required for values greater than this.
• Site plans must include the locations of any wells, septic systems, and leach lines. Property lines must match the APN.