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

Redwood City Solar Permit Guide

Pacific Gas and Electric Company (PG&E) territory · San Mateo County

Redwood City Solar Permit Checklist
Printed from mygridpermit.com/california/redwood-city/solar-permit-guide/ · Last verified 2026-08-11 · City of Redwood City Building Inspection & Code Enforcement Division / PG&E · Verify current requirements before relying on this checklist. Programs and fees change.
✓ Last verified 2026-08-1110 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 Redwood City Building Inspection & Code Enforcement Division 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

0–3 days

Redwood City Code Section 9.216(A): 'The Building Official shall issue a building permit or other nondiscretionary permit the same day for over-the-counter applications or within one (1) to three (3) business days of receipt of a complete application...for electronic applications.'

Confidence: High (0.85)

Source(s): Article XII - Residential Rooftop Solar Energy Systems (Redwood City City Code, Chapter 9 - Buildings)

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): SGIP - Statewide Announcements / 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 and Electric Company (PG&E)

Confidence: High (0.85)

Source(s): PG&E's Electric Service Territory

Generation supplier

WestLight Energy (formerly Peninsula Clean Energy) - ECOplus (default) (Community Choice Aggregator)

Redwood City is the headquarters location of WestLight Energy/Peninsula Clean Energy per multiple sources this session, and is a San Mateo County city. San Mateo County's CCA program enrolls all county jurisdictions' customers by default (opt-out model), consistent with the default-enrollment pattern directly confirmed for other San Mateo County cities (e.g. South San Francisco, Daly City) this session, though redwoodcity.org itself returned HTTP 403 to automated fetch and could not be directly read to confirm Redwood City's own page content.

Confidence: Medium (0.7)

Source(s): WestLight Energy (Homepage) - 'Peninsula Clean Energy is now WestLight Energy'

Interconnection

https://www.pge.com/en/about/doing-business-with-pge/interconnections/net-energy-metering-program.html

PG&E's own Net Energy Metering (NEM) program page — a utility-wide fact already established for other PG&E-territory records in this dataset.

Confidence: Medium (0.6)

Permit authority

City of Redwood City Building Inspection & Code Enforcement Division

Directly re-verified via browser this session (an earlier HTTP 403 to automated fetch was intermittent, not a persistent block). The City's own 'SolarAPP+ Permitting Guide' PDF, however, triggers a file-download dialog rather than a viewable page and could not be read.

Confidence: High (0.85)

Source(s): SolarAPP+ Automatic Permitting

Permit page: https://www.redwoodcity.org/departments/community-development-and-transportation/building-inspection-code-enforcement/solarapp-automatic-permitting

Required documents

  • Standard Plan and Checklist (per the California Solar Permitting Guidebook), adopted by the City Building Department (required when: always)

Confidence: High (0.8)

Source(s): Article XII - Residential Rooftop Solar Energy Systems (Redwood City City Code, Chapter 9 - Buildings)

Inspection steps

  • Submit an online building inspection request via eTRAKiT, providing the permit number, project address, inspection type(s), and contact name/number
  • Inspections are available Monday-Friday 9am-4pm; check Today's Building Inspections after 9am on the day of your inspection for your estimated 2-hour arrival window
  • Cancellations can currently also be made by calling the Inspection Line at (650) 780-7361

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

Confidence: Medium (0.75)

Source(s): Schedule a Building Inspection

Eligibility constraints

  • Property types: residential, duplex
  • Max system size (AC): 10 kW
  • Max system size (DC): Not yet verified.
  • Max thermal capacity: 30 kW
  • Program/pathway: Expedited Residential Rooftop Solar Energy Systems permitting (City Code Ch. 9, Article XII)
  • Other conditions:
    • System must be installed on a single- or duplex-family dwelling
    • Solar panel/module array must not exceed the maximum legal building height as defined by the City
    • Only one consolidated inspection is required for eligible systems, scheduled within 2 business days of request
    • Approval cannot be conditioned on approval of an association (HOA)

Confidence: High (0.85)

Source(s): Article XII - Residential Rooftop Solar Energy Systems (Redwood City City Code, Chapter 9 - Buildings)

Official contacts

Confidence: Medium (0.6)

Need a solar installer who handles permits in Redwood 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 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 Redwood City, California?

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

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

Redwood City Code Section 9.216(A): 'The Building Official shall issue a building permit or other nondiscretionary permit the same day for over-the-counter applications or within one (1) to three (3) business days of receipt of a complete application...for electronic applications.'

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

Commonly required documents include: Standard Plan and Checklist (per the California Solar Permitting Guidebook), adopted by the City Building Department.

Who do I contact about solar permits in Redwood City?

SGIP Program Administrator (PG&E territory).

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 Redwood City Building Inspection & Code Enforcement Division and PG&E before starting a project. Last verified 2026-08-11.

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