Modesto, CA Solar Energy: Expedited Solar Permitting (2026)
Key Facts
- System size cap
- 10 kW AC or 30 kW thermal
- Application review time
- 3 business days
- Inspections required
- 1 consolidated inspection
- Inspection scheduling window
- Within 5 business days
- Governing sections
- Modesto Code §§ 9-1.1801-9-1.1806
- Appeal body
- Planning Commission
Summary
Modesto runs an administrative, nondiscretionary review for small residential rooftop solar systems up to 10 kilowatts AC, reviewing complete applications within three business days and scheduling a single consolidated inspection within five business days, per the Solar Rights Act and Government Code Section 65850.5.
9-1.1801 - Purpose. The purpose of this Ordinance is to adopt an expedited, streamlined solar permitting process for small residential rooftop solar energy systems that complies with the Solar Rights Act and AB 2188, as codified in Government Code section 65850.5... 9-1.1806(a) The Building Official shall review the permit application within three (3) business days upon receipt of a complete application... (g) Only one (1) inspection shall be required and performed by the Building and Safety Services Department for small residential rooftop solar energy systems eligible for expedited review.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 71).
Full Breakdown
5) with a streamlined local process. 1801 states the purpose is an expedited, streamlined solar permitting process for small residential rooftop systems. 1802 defines a qualifying system as no larger than 10 kilowatts AC nameplate rating or 30 kilowatts thermal, installed on a single or duplex-family dwelling, conforming to state and local codes, and not exceeding the city's maximum legal building height. 55, 66015, and 66016 and Health and Safety Code Section 17951. 1806 sets the operating timeline: the Building Official reviews a complete application within three business days, may require a use permit only on substantial evidence of a specific, adverse impact on public health or safety, and such denials are appealable to the Planning Commission.
Only one inspection is required for an eligible system, and it must be scheduled within five business days of a request, targeted to a two-hour window, with the solar contractor present. If an application is incomplete, the Building Official must issue a written correction notice detailing every deficiency rather than a blanket rejection.
Violations & Fines
A use permit denial for specific, adverse health or safety impact must be supported by written findings in the record and can be appealed to the Planning Commission within the timeframe set by the city's appeal procedures. Connecting a system to the utility grid before receiving the utility's own approval, separate from the city permit, is not authorized by the Building Official's sign-off.
Frequently Asked Questions
How fast does Modesto review a residential solar permit?
How many inspections does a small rooftop solar system need?
Can Modesto deny a solar permit outright?
Sources & Official References
Other rules in Modesto
California rules heatmap·Compare Modesto to another location·View the California solar energy overview
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