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Solar Companies in Manteca, CA: Who Installed the Most Systems in 2025
Utility records show 1,715 home solar systems connected in Manteca in 2025. Sunrun Installation Services Inc was the installer of record on 571 of them, followed by Solara Home Energy LLC (239) and Citadel Roofing and Solar (171). The table lists each company's CSLB license number. It is a count from public records, not a ranking or endorsement: check each license and get at least three quotes.
California Rate Relief is a private solar referral service.
Key facts
- Electric utility
- PG&E
- 33.7¢/kWh average residential rate, CPUC
- CPUC Public Advocates Officechecked Sep 22, 2026
Installers who connected the most home solar systems in Manteca in 2025
| Installer (name as reported) | Systems in 2025 | Jan 2024 to May 2026 | CSLB license |
|---|---|---|---|
| Sunrun Installation Services Inc | 571 | 1,056 | 750184 check |
| Solara Home Energy LLC | 239 | 324 | 1103958 check |
| Citadel Roofing and Solar | 171 | 289 | 647149 check |
| Complete Solar Inc | 120 | 172 | 961988 check |
| California Solar Pros Inc | 93 | 117 | 1103250 check |
| Tesla Energy Operations Inc | 53 | 121 | 888104 check |
| Allen Electric Inc | 47 | 117 | 917826 check |
| Bright Ops | 47 | 81 | 1020761 check |
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 Manteca by the numbers
PG&E approved 1,715 home solar systems in Manteca in 2025, from 90 installers; the top three were named on 57% of them. The busiest year since 2021 was 2022, with 1,841 (2025: -7%). Another 504 were approved from January through May 2026.
2025 mix: 43% leased or on a power purchase agreement, 57% owned by the household; 27% with a battery; median size 5.17 kW DC. San Joaquin County: 52% leased or PPA, 40% with a battery, median 5.64 kW.
| Year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Systems connected | 1,475 | 1,841 | 1,727 | 1,284 | 1,715 |
Who connects a Manteca solar system
PG&E connected every Manteca system in the 2025 records. A new Manteca system on PG&E goes on the CPUC Net Billing Tariff; the key facts above give PG&E's average rate.
Verify the company behind the Manteca quote
Match the business name and license number on each Manteca 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 Manteca solar cost and permit page.
Before you sign anything in Manteca
Two of the contract terms that most often change what a quote really costs.
Frequently asked questions
Which solar companies install the most systems in Manteca?
In 2025 interconnection records, Sunrun Installation Services Inc was the installer on 571 home systems in Manteca, Solara Home Energy LLC on 239 and Citadel Roofing and Solar on 171, out of 1,715. Since January 2024 the same companies were named on 1,056, 324, 289 systems. That is a count, not a ranking.
Do most Manteca homeowners buy or lease their solar?
Of 1,715 home systems connected in Manteca in 2025, 43% were leased or on a power purchase agreement and 27% had a battery; the median size was 5.17 kW DC.
How do I check a Manteca solar company's license?
Look the number up on the CSLB's Check a License page. For the companies named on the most Manteca systems in 2025, the applications list 750184 for Sunrun Installation Services Inc, 1103958 for Solara Home Energy LLC and 647149 for Citadel Roofing and Solar. The CSLB record shows the status, classification and any complaint disclosure.
Ask for a competing quote
Start with the utility on your bill and what you pay in a typical month. Contact details come after that. Submitting does not guarantee that a provider will quote your project.
California Rate Relief is a referral service. We are not a licensed contractor. California Rate Relief is compensated by a solar provider when a homeowner we refer signs an agreement. How we make money
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