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California / Local permit guide

Suisun City Solar Permit Guide

Your local requirements. The official sources. A clearer next step.

Permit authority
Suisun City Building DepartmentSource linked
Electric utility
Pacific Gas & Electric (PG&E)Source linked
Review time
0–3 daysSee source scope and conditions below.
See your permit path

Solano County · Explore related utility guides

Source healthLast verified 2026-08-118 official sources5 of 6 core facts verified
Jump to a section
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 Suisun City Building Department and PG&E before making a decision.

Research coverage

Your permit path,
at a glance.

This shows what GridPermit has verified for Suisun City. It does not show the status of a specific project.

  1. 01Permit authoritySuisun City Building DepartmentAuthority sourced
  2. 02DocumentsChecklist includes conditional itemsConditions apply
  3. 03InspectionInspection guidance for Suisun CitySteps sourced
  4. 04Utility & PTOPacific Gas & Electric (PG&E)Utility path sourced

01 / Know your path

Two approvals.
One project.

Local authority

Permit & inspection

Suisun City Building Department

Local requirements
Electric utility

Interconnection & PTO

Pacific Gas & Electric (PG&E)

Utility requirements

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

0–3 days

Suisun City Municipal Code Section 15.04.390(F)(1): 'The building official shall issue a building permit or other nondiscretionary permit the same day for applications that meet the requirements of the approved checklist or within three business days for electronic applications after receipt of a complete application.'

Sources & confidence

Confidence: High (0.85)

Source(s): Section 15.04.390 - Residential solar projects (Suisun City Municipal Code, Title 15 - Buildings and Construction)

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

Confidence: High (0.9)

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

02 / Prepare your application

What you need.

0 of 1 markedSaved only on this device; not confirmation of permit readiness.

Sources & confidence

Confidence: Medium (0.75)

Source(s): Section 15.04.390 - Residential solar projects (Suisun City Municipal Code, Title 15 - Buildings and Construction)

Permit fees

Not yet verified.

Rebates on record

Rebates on record

Not yet verified.

Utility and generation supplier

Utility

Pacific Gas & Electric (PG&E)

Suisun City is a well-documented Solano County city within PG&E's core Northern California service territory.

Sources & confidence

Confidence: High (0.9)

Source(s): Building Department

Generation supplier

Pacific Gas & Electric (PG&E) (utility)

Suisun City is not among them, and no other CCA was found serving Solano County. PG&E is recorded as both the distribution and generation utility. Some supporting official material could not be independently confirmed from the full source in GridPermit's latest review. Verify the current requirement with the authority before relying on it.

Sources & confidence

Confidence: High (0.8)

Source(s): Service Area

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

Suisun City Building Department

Sources & confidence

Confidence: High (0.9)

Source(s): Building Department

Permit page: https://www.suisun.com/Departments/Development-Services/Building-Department

Inspection steps

  • Inspections may be requested by calling 707-421-7319 or through the online permit portal; scheduling is the responsibility of the permittee
  • The inspection card must be on-site at the time of inspection
  • No work beyond the point of each successive inspection may proceed without prior approval from the Building Division

This is the City's general Building Division inspection process (the same page covers all building permit types, including solar); the City does not publish a separate, solar-specific inspection sequence.

Sources & confidence

Confidence: Medium (0.75)

Source(s): Get a Building Permit

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: Standard solar permitting under the city's Renewable Energy-Solar ordinance (Chapter 18.60)
  • Other conditions:
    • Applies to all zoning districts in the city except Open Space (OS)
    • Solar panels and solar thermal tanks must be mounted no more than 10 inches from the roof surface
    • Based on the city's latitude, fixed-angle solar panels should be mounted at a 31-32 degree angle to horizontal
Sources & confidence

Confidence: Medium (0.7)

Source(s): Building Department

Official contacts

Official contacts

Confidence: High (0.8)

Need a solar installer who handles permits in Suisun City?

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

Frequently Asked Questions

What utility serves solar customers in Suisun City, California?

Pacific Gas & Electric (PG&E) is the interconnection and distribution utility for Suisun City. The same utility is also listed as the default electricity generation supplier.

How long does a residential solar permit take in Suisun City?

Suisun City Municipal Code Section 15.04.390(F)(1): 'The building official shall issue a building permit or other nondiscretionary permit the same day for applications that meet the requirements of the approved checklist or within three business days for electronic applications after receipt of a complete application.'

What documents are required for a solar permit in Suisun City?

Commonly required documents include: Checklist adopted by the Building Official, substantially conforming to the California Solar Permitting Guidebook.

Who do I contact about solar permits in Suisun City?

Suisun City Building Department.