Solar Companies in Temecula, CA: Who Installed the Most Systems in 2025

Installers who connected the most home solar systems in Temecula in 2025

Counts from utility records, not a ranking or endorsement. Check each license's status and complaint history on the CSLB's Check a License page (checked Sept. 24, 2026).

Source: California Distributed Generation Statistics (CPUC), Interconnected Project Sites data set, data through May 31, 2026 (checked Sept. 24, 2026).

Home solar in Temecula by the numbers

SCE approved 887 home solar systems in Temecula in 2025, from 103 installers; the top three were named on 45% of them. The busiest year since 2021 was 2023, with 1,991 (2025: -55%). Another 387 were approved from January through May 2026.

2025 mix: 45% leased or on a power purchase agreement, 55% owned by the household; 75% with a battery; median size 7.2 kW DC. Riverside County: 57% leased or PPA, 75% with a battery, median 6.48 kW.

Hiring a solar company in Temecula

Temecula gives solar companies three permit routes: SolarAPP+ with automatic issuance, an expedited 3-business-day review for City Standard Plans, and a 10-to-12-day standard review. SolarAPP+ jobs also need a Fire Department inspection first, and batteries cannot go in a garage without fire sprinklers. Most of Temecula is SCE territory, with a small part in SDG&E's. Compare at least three written bids built on your own bill.

Start with your Temecula electricity bill

Most of Temecula is Southern California Edison territory: the Energy Commission's map puts about 93% of the city's area in SCE's service area and about 7% in SDG&E's, with no community choice provider over either. The two utilities have different solar rules and rates, so confirm from your own bill which one serves your address before comparing any savings estimate.

Temecula's SolarAPP+ steps

SolarAPP+ has been available in Temecula since September 30, 2023. The City's list runs in order: confirm the project qualifies, register for a Citizen Self Service (CSS) account, obtain a City business license, have a valid state contractor's license ready, register with SolarAPP+ and submit the design there for a fee, then apply for the building permit in CSS under SolarAPP+ Photovoltaic with the approved plans uploaded, which carries its own fee.

The last step is specific to Temecula: a Fire Department inspection, booked at 951-308-6363, must be scheduled and passed before the building inspection can be scheduled. The fire inspector needs a certificate of compliance for all materials and parts, and the Fire Prevention Division does not accept an authorization to mark pages in its place; missing paperwork means a failed inspection and possible reinspection fees.

Batteries and the other two routes

Temecula's fire rules shape where a battery can go. Energy storage is not allowed in a garage unless the home has a residential fire sprinkler system, and no heat or smoke detector may be installed in the garage to get around that, since none is currently listed for the purpose. Ask each bidder to show the storage location on its plan.

Projects that do not use SolarAPP+ have two other routes. Systems drawn on the City's Standard Plans qualify for expedited review of about three business days; everything else goes through standard review of 10 to 12 business days, and plans that are not City Standard Plans do not get expedited review. All systems must meet the City's residential photovoltaic and digital submittal requirements, and expanding an existing system rules out both faster routes.

What a Temecula quote needs to explain

A comparison to ask for

If a Temecula bid includes a battery in the garage, ask whether your home has a residential fire sprinkler system. The City's fire rules do not allow energy storage in a garage without one, so a bid that places it there on an unsprinklered house will need a new location before it can pass inspection.

Verify the company behind the Temecula quote

Match the business name and license number on each Temecula proposal to the CSLB record, then use our contractor verification steps, the quote comparison guide and the PPA, loan, lease and cash comparison.

Permit fees and the filing route are on the Temecula solar cost and permit page.

Temecula solar quote questions