Independent Educational Guide: California residential solar permit facts, sourced, dated, and confidence-scored. Not legal, engineering, or permit advice.

Willits Solar Permit Guide

Pacific Gas & Electric (PG&E) territory · Mendocino County

Willits Solar Permit Checklist
Printed from mygridpermit.com/california/willits/solar-permit-guide/ · Last verified 2026-08-09 · City of Willits Building & Safety / PG&E · Verify current requirements before relying on this checklist. Programs and fees change.
✓ Last verified 2026-08-096 official sources
Informational only. This page is not legal, engineering, or permit advice. Every fact below links to the official source it came from and shows how confident we are in it. Verify current requirements with City of Willits Building & Safety and PG&E before making a decision.

Overview

GridPermit collects California residential solar and permitting facts directly from official sources (city, county, and state government sites, utilities, and public utilities commissions) and shows only what we can verify, with a confidence score and a link to where it came from. Nothing here is estimated or inferred beyond what's stated below. See our methodology for the rules this page follows.

Battery/solar incentive program on record

California SGIP - current category and budget check required

New applications and waitlist applications for ratepayer-funded SGIP budgets closed on December 30, 2025. New AB 209 applications have a June 30, 2028 deadline. The 2026 SGIP rate table publishes $3.10/W for solar and $1.10/Wh for storage in applicable Residential Solar and Storage Equity categories. Household eligibility and live budget availability vary by category and program administrator; check the official Program Metrics tracker before relying on an incentive.

Status on file: unknown. Verify current status before relying on this.

Confidence: High (0.9)

Source(s): About, 2026 Self-Generation Incentive Program Handbook, SGIP Program Metrics and Incentive Step Tracker

Permit fees

Not yet verified.

Rebates

Not yet verified.

Utility and generation supplier

Utility

Pacific Gas & Electric (PG&E)

Confidence: High (0.85)

Source(s): Building & Safety

Generation supplier

Sonoma Clean Power (SCP) (Community Choice Aggregator)

Directly re-verified this session via Sonoma Clean Power's own 'Who We Are' page, which explicitly states: 'Here in Sonoma and Mendocino Counties, our local CCA is Sonoma Clean Power (SCP)' and 'SCP replaced PG&E's power sources for electric customers in Sonoma and Mendocino County' -- a whole-county coverage statement, not a partial/unincorporated-only claim. Willits, a Mendocino County city, is therefore served by SCP. PG&E continues to deliver the power and provide billing/customer service.

Confidence: High (0.85)

Source(s): Who We Are

Interconnection

https://www.pge.com/en/save-energy-and-money/rebates-and-incentives/nem.html

PG&E's own utility-wide Net Energy Metering (NEM) program page.

Confidence: Medium (0.55)

Permit authority

City of Willits Building & Safety

Confidence: High (0.85)

Source(s): Building & Safety

Permit page: https://cityofwillits.org/141/Building-Safety

Required documents

  • Standardized residential rooftop PV submittal (Residential Rooftop Photovoltaic Guide) (required when: always)

Confidence: Medium (0.6)

Source(s): Building & Safety

Inspection steps

  • Inspections conducted Mondays-Thursdays 10am-4pm; requests must be made at least 24 hours in advance by counter, phone, or email

Confidence: Medium (0.7)

Source(s): Building & Safety

Eligibility constraints

  • Property types: residential
  • Max system size (AC): Not yet verified.
  • Max system size (DC): Not yet verified.
  • Max thermal capacity: Not yet verified.
  • Program/pathway: Standardized permit submittal for residential (one- and two-family dwellings and legally permitted accessory buildings) roof-mounted PV systems
  • Other conditions:
    • Additional requirements apply if the project is in a historical district, subject to a homeowner's association, or is a ground-mount system

Confidence: Medium (0.65)

Source(s): Building & Safety

Official contacts

Confidence: High (0.85)

Need a solar installer who handles permits in Willits?

EnergySage is an independent solar marketplace where you can request property-specific pricing from installers familiar with local permitting.

Compare quotes from solar installers →

You'll continue on EnergySage's website. GridPermit has a partner relationship with EnergySage; this link is not currently tracked, and whether the partnership results in compensation to GridPermit has not yet been confirmed.

Sources

Frequently Asked Questions

What utility serves solar customers in Willits, California?

Pacific Gas & Electric (PG&E) is the interconnection and distribution utility for Willits. The default electricity generation supplier is Sonoma Clean Power (SCP), a Community Choice Aggregator (CCA), separate from Pacific Gas & Electric (PG&E).

What documents are required for a solar permit in Willits?

Commonly required documents include: Standardized residential rooftop PV submittal (Residential Rooftop Photovoltaic Guide).

Who do I contact about solar permits in Willits?

City of Willits Building Department, phone 707-459-7112, email aojeda@cityofwillits.org.

Disclaimers: This page is for informational purposes only and is not legal, engineering, financial, tax, or permit advice. GridPermit is not a solar installer, contractor, engineering firm, public utility, or government agency. Requirements, fees, and program terms change. Verify current requirements with City of Willits Building & Safety and PG&E before starting a project. Last verified 2026-08-09.

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