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California solar decisions
Solar Companies in Rancho Cucamonga, CA: Who Installed the Most Systems in 2025
Utility records show 376 home solar systems connected in Rancho Cucamonga in 2025. Sunrun was the installer of record on 104 of them, followed by Tesla Energy Operations Inc (51) and Bright Ops (29). 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
- Home solar systems connected, 2025
- 376
- Rancho Cucamonga, SCE customers
- CPUC DG Statschecked Sep 24, 2026
Installers who connected the most home solar systems in Rancho Cucamonga in 2025
| Installer (name as reported) | Systems in 2025 | Jan 2024 to May 2026 | CSLB license |
|---|---|---|---|
| Sunrun | 104 | 222 | 750184 check |
| Tesla Energy Operations Inc | 51 | 119 | 888104 check |
| Bright Ops | 29 | 45 | 1020761 check |
| V3 Electric Inc | 20 | 35 | 1000573 check |
| Daylight Solar Energy Corp | 11 | 12 | 903293 check |
| Freedom Forever Southern California LLC | 9 | 9 | 1124448 check |
| SWSS Electrical | 7 | 10 | 1004667 check |
| Luxor Energy Inc | 7 | 13 | 1102673 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 Rancho Cucamonga by the numbers
SCE approved 376 home solar systems in Rancho Cucamonga in 2025, from 78 installers; the top three were named on 49% of them. The busiest year since 2021 was 2023, with 852 (2025: -56%). Another 173 were approved from January through May 2026.
2025 mix: 53% leased or on a power purchase agreement, 47% owned by the household; 92% with a battery; median size 8.51 kW DC. San Bernardino County: 58% leased or PPA, 75% with a battery, median 6.3 kW.
| Year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Systems connected | 462 | 758 | 852 | 365 | 376 |
Start with your Rancho Cucamonga electricity bill
The City says Southern California Edison is the main electric provider in Rancho Cucamonga, and that its own Rancho Cucamonga Municipal Utility (RCMU) serves over 3,900 metered businesses and residents in a selected area in the southeastern part of the city. Use the provider, rate plan and usage history on the actual electricity account. A proposal should disclose its system-production and remaining-bill assumptions for the property rather than substitute a citywide rate or an advertised savings figure.
What a Rancho Cucamonga quote needs to explain
| Check | Ask each bidder |
|---|---|
| Account-specific model | Use the rate plan and usage history printed on the actual account; ask for the inputs behind the production and remaining-bill model. |
| Permit route | Ask whether the online permit center or SolarAPP+ applies and name who submits the plans, pays the permit fees and schedules inspection. |
| Project scope | List roof work, panel/service changes, storage, backup circuits and warranty responsibility separately from the core solar array. |
A comparison to ask for
Put the same year of usage, roof layout and equipment scope into every proposal. Then separate the solar array, storage, roof work, electrical work, permit/inspection duties, contract total and remaining utility charges. Compare the signed scope, not the headline payment.
Verify the company behind the Rancho Cucamonga quote
Match the business name and license number on each Rancho Cucamonga 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 Rancho Cucamonga solar cost and permit page.
Rancho Cucamonga solar quote questions
Does every Rancho Cucamonga solar project qualify for SolarAPP+?
No. The City describes SolarAPP+ for eligible residential project types and directs other work to the online permit center. Confirm the route for the actual design and property.
What should I compare beyond the quoted payment?
Compare the written total, roof and electrical scope, permit duties, equipment, warranty responsibility, production inputs and remaining utility charges.
Before you sign anything in Rancho Cucamonga
Two of the contract terms that most often change what a quote really costs.
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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