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California / Local permit guide

Atherton Solar Permit Guide

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

Permit authority
Town of Atherton Building DepartmentSource linked
Electric utility
Pacific Gas & Electric (PG&E)Source linked
Local pathway
Expedited review (Atherton PV System Eligibility Checklist)Project-specific eligibility conditions apply.
See your permit path

San Mateo County · Explore related utility guides

Source healthLast verified 2026-08-096 official sources4 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 Town of Atherton Building Department and PG&E before making a decision.

Research coverage

Your permit path,
at a glance.

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

  1. 01Permit authorityTown of Atherton Building DepartmentAuthority sourced
  2. 02DocumentsChecklist includes conditional itemsConditions apply
  3. 03InspectionInspection guidance for AthertonSteps sourced
  4. 04Utility & PTOPacific Gas & Electric (PG&E)Utility path sourced

01 / Know your path

Two approvals.
One project.

Local authority

Permit & inspection

Town of Atherton 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.

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): Building

Permit fees

Not yet verified.

Rebates on record

Rebates on record

Not yet verified.

Utility and generation supplier

Utility

Pacific Gas & Electric (PG&E)

Atherton is a well-documented San Mateo County city within PG&E's core Northern California service territory.

Sources & confidence

Confidence: High (0.9)

Source(s): Building

Generation supplier

WestLight Energy (formerly Peninsula Clean Energy) (Community Choice Aggregator)

WestLight Energy's own site confirms it is San Mateo County's CCA, formed in 2015 after every city council in the county voted to establish it, serving the entire county (all cities/towns, including Atherton) since 2017. PG&E continues to deliver the power and provide billing/customer service.

Sources & confidence

Confidence: High (0.8)

Source(s): In the Community

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

Town of Atherton Building Department

Sources & confidence

Confidence: High (0.85)

Source(s): Building

Permit page: https://www.athertonca.gov/147/Building

Inspection steps

  • Only one inspection is required for a small residential rooftop solar energy system eligible for expedited review
  • May include a consolidated inspection by the building official and fire chief
Sources & confidence

Confidence: High (0.8)

Source(s): Building

Eligibility constraints

  • Property types: residential
  • Max system size (AC): 10 kW
  • Max system size (DC): Not yet verified.
  • Max thermal capacity: Not yet verified.
  • Program/pathway: Expedited review (Atherton PV System Eligibility Checklist)
  • Other conditions:
    • Solar array must be roof-mounted on a one- or two-family dwelling or accessory structure
    • Solar panel/module arrays may not exceed the maximum legal building height
    • Solar facilities are exempt from the minimum 10-foot side yard setback requirement unless the building official finds a specific adverse impact on public health or safety
Sources & confidence

Confidence: High (0.85)

Source(s): Building

Official contacts

Official contacts

Confidence: Medium (0.75)

Need a solar installer who handles permits in Atherton?

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 Atherton, California?

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

What documents are required for a solar permit in Atherton?

Commonly required documents include: Atherton PV System Eligibility Checklist.

Who do I contact about solar permits in Atherton?

Town of Atherton Building Department.