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

Sonoma Solar Permit Guide

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

Sonoma Solar Permit Checklist
Printed from mygridpermit.com/california/sonoma/solar-permit-guide/ · Last verified 2026-08-08 · City of Sonoma Building Department / PG&E · Verify current requirements before relying on this checklist. Programs and fees change.
✓ Last verified 2026-08-083 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 Sonoma Building Department 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.

Permit timeline

2–5 days

Standard permitting usually takes 2 to 5 business days after complete submission; SolarAPP+ offers instantaneous automated plan review for eligible systems.

Confidence: High (0.85)

Source(s): Expedited Solar Permitting for One & Two-Family Dwellings

Battery/solar incentive program on record

No battery/storage incentive program is on record for this locality.

Permit fees

Not yet verified.

Rebates

Not yet verified.

Utility and generation supplier

Utility

Pacific Gas & Electric (PG&E)

Confidence: High (0.9)

Source(s): Expedited Solar Permitting for One & Two-Family Dwellings

Generation supplier

Sonoma Clean Power (Community Choice Aggregator)

Sonoma Clean Power is the public power provider for Sonoma and Mendocino counties, serving all incorporated cities in Sonoma County except Healdsburg (its own municipal utility) and Ukiah (Mendocino County). PG&E continues to deliver the power and provide billing/customer service.

Confidence: Medium (0.7)

Source(s): Home

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 Sonoma Building Department

Confidence: High (0.9)

Source(s): Expedited Solar Permitting for One & Two-Family Dwellings

Permit page: https://www.sonomacity.org/expedited-solar-permitting-one-two-family-dwellings/

Required documents

  • Expedited Solar Photovoltaic (PV) Permit forms (required when: conditional)
  • Expedited Solar Domestic Water Heating Permit forms (required when: conditional)
  • Expedited Solar Pool Heating Permit forms (required when: conditional)
  • SolarAPP+ Inspection Checklist and Specification Sheets (required when: conditional)
  • Electronic Digital Signature Disclosure Form (required when: conditional)

Confidence: High (0.85)

Source(s): Expedited Solar Permitting for One & Two-Family Dwellings

Inspection steps

  • Schedule by calling 707-938-3681 with permit number, address, inspection type, and preferred date/time
  • Inspections typically available the next business day
  • Permit documentation must remain on-site during the active permit period

Confidence: High (0.85)

Source(s): Expedited Solar Permitting for One & Two-Family Dwellings

Eligibility constraints

  • Property types: residential
  • Max system size (AC): 10 kW
  • Max system size (DC): Not yet verified.
  • Max thermal capacity: 30 kW
  • Program/pathway: Expedited Solar Permitting for One & Two-Family Dwellings
  • Other conditions:
    • Applies to systems 10kW AC nameplate or less, or 30kW thermal

Confidence: High (0.85)

Source(s): Expedited Solar Permitting for One & Two-Family Dwellings

Official contacts

Confidence: High (0.9)

Need a solar installer who handles permits in Sonoma?

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 Sonoma, California?

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

How long does a residential solar permit take in Sonoma?

Standard permitting usually takes 2 to 5 business days after complete submission; SolarAPP+ offers instantaneous automated plan review for eligible systems.

What documents are required for a solar permit in Sonoma?

Commonly required documents include: Expedited Solar Photovoltaic (PV) Permit forms; Expedited Solar Domestic Water Heating Permit forms; Expedited Solar Pool Heating Permit forms; SolarAPP+ Inspection Checklist and Specification Sheets; Electronic Digital Signature Disclosure Form.

Who do I contact about solar permits in Sonoma?

City of Sonoma Building Department, phone 707-938-3681, email Building@sonomacity.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 Sonoma Building Department and PG&E before starting a project. Last verified 2026-08-08.

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