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Redding, CA Solar Energy: Panel Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

System size cap
10 kW AC or 30 kW thermal
Eligible buildings
Single or duplex family dwellings only
Approval method
Administrative approval by building official
Grid connection
Separate REU approval required
Denial ground
Adverse impact under Gov. Code § 65850.5

Summary

Redding administratively approves a permit for a small residential rooftop solar system, capped at ten kilowatts AC or thirty kilowatts thermal on a single or duplex home, once the building official confirms the application meets the city's published checklist. A separate approval from Redding Electric Utility is required before connecting to the grid.

"Small residential rooftop solar energy system" means all of the following: 1. A solar energy system that is no larger than ten kilowatts alternating current nameplate rating or thirty kilowatts thermal. 2. A solar energy system that conforms to all applicable state fire, structural, electrical, and other building codes as adopted or amended by the city and Civil Code Section 714(c)(3)... 3. A solar energy system that is installed on a single or duplex family dwelling. 4. A solar panel or module array that does not exceed the maximum legal building height. ... Upon confirmation by the building official of the application and supporting documentation being complete and meeting the requirements of the checklist, the building official shall administratively approve the application and issue all required permits. Such approval does not authorize an applicant to connect the small residential rooftop energy system to the Redding Electric Utility (REU) electricity grid. The applicant is responsible for obtaining such approval or permission from REU.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 48).

Full Breakdown

020 defines a small residential rooftop solar energy system as one no larger than ten kilowatts alternating current nameplate rating or thirty kilowatts thermal, installed on a single or duplex family dwelling, that conforms to state fire, structural, and electrical codes and Civil Code Section 714(c)(3), and whose panel array does not exceed the maximum legal building height. Before applying, the applicant must verify, using standard engineering evaluation techniques, that the roof support structure can carry the system's wind, seismic, and dead and live loads, and must verify at their own cost, using standard electrical inspection techniques, that the existing wiring, grounding, bonding, and panel sizing can carry the new photovoltaic load.

Applications may be submitted in person, by mail, or electronically with an electronic signature accepted in place of a wet signature. Once the building official confirms the application and supporting documents satisfy the checklist, the official must administratively approve the application and issue all required permits; that approval does not authorize the applicant to energize or connect the system to the Redding Electric Utility grid, which requires separate REU approval or permission. 5(b)-(c) if the building official finds, based on substantial evidence, that the system could have a specific, adverse impact on public health and safety.

Violations & Fines

An incomplete application does not get denied outright; instead, the building official must issue a written correction notice detailing every deficiency and what is needed to become eligible for permit issuance. Connecting a permitted system to the electric grid without separate Redding Electric Utility approval is not authorized by the building permit alone. Beyond that, unpermitted solar installation work falls under the citywide general penalty: a misdemeanor punishable by up to a $1,000 fine, six months in jail, or both.

Frequently Asked Questions

How big can a Redding rooftop solar system be for administrative approval?
Section 16.03.020 limits a small residential rooftop solar energy system to no larger than ten kilowatts alternating current nameplate rating, or thirty kilowatts thermal, installed on a single or duplex family dwelling and not exceeding the maximum legal building height.
Do I need to check my home's electrical system before applying for a solar permit?
Yes. The applicant must verify, at their own cost using standard electrical inspection techniques, that the existing line, load, ground, and bonding wiring and panel sizes can carry the new photovoltaic electrical loads before submitting the application.
Can I turn on my solar system as soon as Redding issues the building permit?
No. Building permit approval under Section 16.03.020 does not authorize connecting the system to the Redding Electric Utility grid; the applicant must separately obtain REU's approval or permission before energizing the system.
Can Redding deny a residential solar permit application?
Yes. Under Government Code Section 65850.5(b)-(c), as applied through Section 16.03.020, the city may deny a permit if the building official finds, based on substantial evidence in the record, that the system could have a specific, adverse impact on public health and safety.

Sources & Official References

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