California / Local permit guide
Windsor Solar Permit Guide
Your local requirements. The official sources. A clearer next step.
- Permit authority
- Town of Windsor Building DivisionSource linked
- Electric utility
- Pacific Gas & Electric (PG&E)Source linked
- Local pathway
- Symbium automated permitting platformProject-specific eligibility conditions apply.
- Review time
- 1–3 daysSee source scope and conditions below.
Sonoma County · Explore related utility guides
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Your permit path,
at a glance.
This shows what GridPermit has verified for Windsor. It does not show the status of a specific project.
01 / Know your path
Two approvals.
One project.
A local permit and utility permission to operate are different approvals. Check the local sequence and requirements below.
How to read this guide
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
1–3 days
Applications not submitted via Symbium are subject to plan review ranging from 1-3 business days; Symbium submissions receive instantaneous code-compliance review.
Sources & confidence
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.
Sources & confidence
02 / Prepare your application
What you need.
Not yet verified.
Permit fees
Not yet verified.
Rebates on record
Rebates on record
Not yet verified.
Utility and generation supplier
Utility
Pacific Gas & Electric (PG&E)
Windsor is a well-documented Sonoma County city within PG&E's core Northern California service territory.
Sources & confidence
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.
Sources & confidence
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.
Inspection steps
- It is the permit holder's responsibility to request inspections from the Building Division as the project progresses
- Inspections are performed Monday through Thursday, 8:30 a.m. to 4:30 p.m.
- Schedule via SelecTXT: text 'SCHEDULE' (or the express command format) to 877-813-1904 with the permit number, inspection code, and date/AM-PM, or call Building at 707-522-8346
This is the Town's general Building Inspections process (the same page covers all building permit types, including solar); the Town's page does not describe a separate, solar-specific inspection sequence.
Sources & confidence
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: Symbium automated permitting platform
- Other conditions:
- Solar collection systems may be added to roofs or sides of existing structures, provided they comply with applicable height limits
- All contractors performing work in the Town of Windsor must hold an active business license prior to permit issuance
Sources & confidence
Official contacts
Official contacts
- Town of Windsor Building Division, official website
Need a solar installer who handles permits in Windsor?
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 links to EnergySage as an independent third-party resource. This link is not currently tracked for compensation.
Official sources
Official sources
- Residential Solar Applications, Town of Windsor (government). Accessed 2026-08-08.
- Net Energy Metering (NEM), Pacific Gas & Electric (utility). Accessed 2026-08-08.
- Home, Sonoma Clean Power (other_official). Accessed 2026-08-08.
- About, Self-Generation Incentive Program (SGIP) (cpuc). Accessed 2026-08-09.
- Inspections, Town of Windsor (government). Accessed 2026-08-09.
- 2026 Self-Generation Incentive Program Handbook, Self-Generation Incentive Program Program Administrators (program_administrator). Accessed 2026-08-26.
- SGIP Program Metrics and Incentive Step Tracker, Self-Generation Incentive Program Program Administrators (program_administrator). Accessed 2026-08-26.
Frequently Asked Questions
What utility serves solar customers in Windsor, California?
Pacific Gas & Electric (PG&E) is the interconnection and distribution utility for Windsor. 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 Windsor?
Applications not submitted via Symbium are subject to plan review ranging from 1-3 business days; Symbium submissions receive instantaneous code-compliance review.
Who do I contact about solar permits in Windsor?
Town of Windsor Building Division.
Related cities
Related cities
Other verified cities related to Windsor. See all cities on the California solar permit guide index.
- Cotati, Pacific Gas & Electric (PG&E)
- Healdsburg, City of Healdsburg Electric Department
- Petaluma, Pacific Gas & Electric (PG&E)
- Rohnert Park, Pacific Gas & Electric (PG&E)
- Santa Rosa, Pacific Gas and Electric Company (PG&E)
- Sebastopol, Pacific Gas & Electric (PG&E)