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California solar decisions
Solar Companies in Lake Forest, CA: Who Installed the Most Systems in 2025
Utility records show 288 home solar systems connected in Lake Forest in 2025. Sunrun was the installer of record on 119 of them, followed by Tesla Energy Operations Inc (40) and Orange County Contracting Services (28). 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
- Instant permit
- SolarAPP+ and eLakeForest
- Since September 25, 2023
- City of Lake Forestchecked Sep 23, 2026
- 2024 solar permits
- 341
- 72% with storage, 48% issued online
- California Energy Commission (SB 379 reports)checked Sep 23, 2026
Installers who connected the most home solar systems in Lake Forest in 2025
| Installer (name as reported) | Systems in 2025 | Jan 2024 to May 2026 | CSLB license |
|---|---|---|---|
| Sunrun | 119 | 233 | 750184 check |
| Tesla Energy Operations Inc | 40 | 81 | 888104 check |
| Orange County Contracting Services | 28 | 37 | 1023627 check |
| Freedom Forever | 11 | 34 | 1124448 check |
| Bright Ops | 5 | 9 | 1020761 check |
| Infinity Solar | 5 | 10 | 824287 check |
| N R G Clean Power Inc | 4 | 5 | 1026168 check |
| Freedom Forever Southern California LLC | 4 | 4 | 1124448 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 Lake Forest by the numbers
SCE approved 288 home solar systems in Lake Forest in 2025, from 59 installers; the top three were named on 65% of them. The busiest year since 2021 was 2023, with 879 (2025: -67%). Another 118 were approved from January through May 2026.
2025 mix: 50% leased or on a power purchase agreement, 50% owned by the household; 89% with a battery; median size 7.68 kW DC. Orange County: 40% leased or PPA, 65% with a battery, median 6.75 kW.
| Year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Systems connected | 415 | 757 | 879 | 348 | 288 |
Hiring a solar company in Lake Forest
Solar companies in Lake Forest can get an instant permit through SolarAPP+ and eLakeForest, the City's online permit portal, for eligible rooftop systems on permitted homes, a route open since September 25, 2023. A main panel upgrade needs its own electrical permit, filed with SCE's spot sticker. SCE supplies the power, with no community choice provider. Compare at least three written bids built on your own SCE bill.
Start with your Lake Forest electricity bill
Lake Forest is SCE territory with no community choice provider on the Energy Commission's maps, and it is not a member of the Orange County Power Authority. SCE bills generation and delivery, and its Solar Billing Plan credits exports at hourly values, locks new customers' values for nine years and adds about $0.04 per kWh for eligible customers who enroll before 2028. Have each bidder model that from your bill.
Lake Forest's SolarAPP+ permit
Lake Forest launched SolarAPP+ on September 25, 2023, for appropriately licensed contractors. Eligible projects are main-dwelling rooftop systems on permitted residential structures that match the SolarAPP+ checklist; anything else is submitted for in-house plan check by the City. The contractor submits the design in SolarAPP+, pays the $25 processing fee and downloads the approval documents.
In eLakeForest, the contractor chooses SolarAPP+ Residential Solar Permit, enters the permit details and the SolarAPP+ approval number, and submits. For instant issuance it adds the invoice to the cart and pays through MyGovPay, which charges a 3.29% processing fee, and receives the permit by email. The City warns that inaccurate or incorrect attachments cause delays or revocation of issued permits, with no refunds for revoked permits.
Panel upgrades, inspections and permit numbers
A main panel upgrade is the most common reason a Lake Forest solar job needs a second permit. The City requires a separate application, permit and fees for any change to the main service panel, submitted in person or by emailing the electrical permit application with SCE's spot sticker to the Building Division. Inspections for the solar permit are scheduled in eLakeForest or at (888) 890-6298 once the work is done.
The City's reports to the Energy Commission show 811 residential solar permits in 2023, about 19% issued online and 19% with storage, and 341 in 2024, about 48% online and 72% with storage. More batteries and more instant permits: ask each bidder which route your design takes and whether a panel upgrade is part of it.
What a Lake Forest quote needs to explain
| Check | Ask each bidder |
|---|---|
| Panel upgrade | File any main panel upgrade on a separate electrical permit with SCE's spot sticker. |
| Attachments | Upload accurate SolarAPP+ documents; the City can revoke permits with no refund. |
| Payment fee | Note MyGovPay's 3.29% processing fee in the permit cost. |
| SCE plan | Model SCE's Solar Billing Plan, including the added credit before 2028. |
Related Lake Forest project questions
Use these guides to prepare the specific questions a written bid needs to answer.
A comparison to ask for
Ask each bidder whether your home needs a main panel upgrade. In Lake Forest that is a separate electrical permit, filed in person or by email with SCE's spot sticker, with its own fees and time, and a bid that leaves it out may be understating both. Then compare the SCE bill each design leaves you with.
Verify the company behind the Lake Forest quote
Match the business name and license number on each Lake Forest proposal to the CSLB record, then use our contractor verification steps, the quote comparison guide and the PPA, loan, lease and cash comparison.
Lake Forest solar quote questions
What are the best solar companies in Lake Forest?
This site does not rank them. Shortlist companies with a CSLB license covering solar that are registered with SolarAPP+ and confirm your address in writing, then compare at least three written bids for the same system built on your own SCE bill.
Does a panel upgrade go on the Lake Forest solar permit?
No. The City says any change to the main service panel needs a separate application, permit and fees. You can submit the main panel upgrade permit in person or email the electrical permit application with SCE's spot sticker to the Building Division.
How do I schedule a solar inspection in Lake Forest?
Through the eLakeForest portal or the automated phone line at (888) 890-6298, once the work is complete. Revisions go back through SolarAPP+ first.
How many solar permits does Lake Forest issue?
Lake Forest reported 811 residential solar permits to the California Energy Commission for 2023 and 341 for 2024. Of the 2024 permits, 246, about 72%, included battery storage, and 163, about 48%, were issued online.
Before you sign anything in Lake Forest
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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