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California solar decisions
Solar Companies in San Luis Obispo, CA: Who Installed the Most Systems in 2025
Utility records show 348 home solar systems connected in San Luis Obispo in 2025. Sunrun was the installer of record on 119 of them, followed by Lifestyle Solar Inc (47) and Photon Brothers (27). 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
- SolarAPP+ review fee
- $35 solar, $60 with storage
- City permit fees are separate
- City of San Luis Obispochecked Sep 23, 2026
- Permit issued
- About a minute
- After fees are paid in InfoSLO
- City of San Luis Obispochecked Sep 23, 2026
- 3CE true-up
- Every December
- Generation side; PG&E trues up delivery separately
- Central Coast Community Energychecked Sep 23, 2026
Installers who connected the most home solar systems in San Luis Obispo in 2025
| Installer (name as reported) | Systems in 2025 | Jan 2024 to May 2026 | CSLB license |
|---|---|---|---|
| Sunrun | 119 | 343 | 750184 check |
| Lifestyle Solar Inc | 47 | 75 | 922659 check |
| Photon Brothers | 27 | 41 | 1003044 check |
| Solarponics Inc | 21 | 42 | 391670 check |
| Sunwork Renewable Energy Projects | 16 | 21 | 920732 check |
| Tesla Energy Operations Inc | 13 | 24 | 888104 check |
| Axiom 360 LLC | 12 | 18 | 1078551 check |
| Bright Ops | 10 | 22 | 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 San Luis Obispo by the numbers
PG&E approved 348 home solar systems in San Luis Obispo in 2025, from 42 installers; the top three were named on 55% of them. The busiest year since 2021 was 2023, with 701 (2025: -50%). Another 130 were approved from January through May 2026.
2025 mix: 26% leased or on a power purchase agreement, 74% owned by the household; 48% with a battery; median size 4.69 kW DC. San Luis Obispo County: 45% leased or PPA, 61% with a battery, median 5.12 kW.
| Year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Systems connected | 362 | 605 | 701 | 421 | 348 |
Hiring a solar company in San Luis Obispo
Solar companies in San Luis Obispo get the permit in about a minute: after SolarAPP+ approves the design ($35 for solar, $60 with storage), the contractor pays the City's fees in InfoSLO and the permit is issued automatically. Central Coast Community Energy supplies the city's generation and PG&E delivers it, with 3CE's true-up every December. Compare at least three written bids built on your own 3CE and PG&E bill.
San Luis Obispo's five permit steps
The City lists the path in order. The contractor registers or signs in to SolarAPP+, submits the design and pays SolarAPP+'s review fee: $35 for a solar application or $60 for solar plus storage. It then registers or logs in to InfoSLO, the City's permit portal, and submits the permit with the required documents. Once the permit fees are paid online, the permit is issued automatically in about a minute.
The last step is the inspection, requested in the same portal. The City says requests received by 5:00 p.m. may be scheduled for the following business day. Ask your installer who will make the request and who will be on site when the inspector arrives.
What a San Luis Obispo quote needs to explain
| Check | Ask each bidder |
|---|---|
| SolarAPP+ and InfoSLO | Confirm the job will be approved in SolarAPP+ and permitted in InfoSLO, and who requests the inspection. |
| Storage in the application | Say whether the SolarAPP+ application is solar-only ($35) or solar plus storage ($60). |
| 3CE and PG&E true-ups | Show 3CE's December generation true-up and PG&E's delivery true-up separately. |
| Contract and service | Name the contracting business, its CSLB license and who handles service calls after installation. |
A comparison to ask for
Ask each San Luis Obispo bidder whether it is filing a solar-only or a solar-plus-storage SolarAPP+ application, since the review fee differs ($35 or $60) and so does the equipment. Then ask which month each true-up falls in, PG&E's and 3CE's December one, and what the model expects each to show.
Verify the company behind the San Luis Obispo quote
Match the business name and license number on each San Luis Obispo proposal to the CSLB record, then use our contractor verification steps, the quote comparison guide and the PPA, loan, lease and cash comparison. What you pay the utility today is on the San Luis Obispo rates and bills page.
Permit fees and the filing route are on the San Luis Obispo solar cost and permit page.
San Luis Obispo solar quote questions
How fast is a solar permit in San Luis Obispo?
After SolarAPP+ approval and payment of the City's permit fees in InfoSLO, the City says the permit is issued automatically within about a minute. Inspection requests received by 5:00 p.m. may be scheduled for the next business day.
What does SolarAPP+ cost in San Luis Obispo?
SolarAPP+ charges $35 for a solar application and $60 for solar plus storage. The City's permit fees are separate and paid online in InfoSLO.
When does 3CE true up solar customers?
Every December for the generation side. Net energy metering customers are paid Net Surplus Compensation at 3CE's rate, $0.023 per kWh in PG&E territory since December 1, 2025, and residential customers with at least $200 in combined credits can ask for a check within 45 days.
Before you sign anything in San Luis Obispo
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