Between 2023 and 2025, 2,486 home solar systems were installed in San Francisco by 168 different companies. Luminalt installed the most (436, or 18% of the local market), followed by Sutro Power (183) and All Bay Solar Construction (150). 6% of the systems were leased or financed through a power purchase agreement; the rest were bought outright. Every company in the ranking was still installing in 2025; installers that have since closed are left out.
Top 10 Solar Companies in San Francisco by Home Installations
-
- Most installations
- Mostly sells systems you own
- (415) 640-4000
- luminalt.com
- 10 Carolina Street, San Francisco, CA 94103
- Typical system
- 5.5 kW
- Median price (owned)
- $6.60/W
- Leased / PPA
- 0%
- With battery
- 48%
Luminalt mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs SunPower panels with SunPower inverters. 48% of its systems here include a home battery. Its median price for an owned system, $6.60/W, is 35% above the San Francisco median of $4.89/W. A typical system is 5.5 kW, about 14 panels, and it has installed in San Francisco since 2007.
Phone from its California contractor license, CSLB #845219
- Map & reviews ↗
Sutro Power
- Mostly sells systems you own
- (415) 714-9350
- sutropower.com
- 2259 Shafter Ave, San Francisco, CA 94124
- Typical system
- 5.2 kW
- Median price (owned)
- $4.02/W
- Leased / PPA
- 0%
- With battery
- 32%
Sutro Power mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs REC Group panels with Enphase microinverters. 32% of its systems here include a home battery. Its median price for an owned system, $4.02/W, is 18% below the San Francisco median of $4.89/W. A typical system is 5.2 kW, about 13 panels, and it has installed in San Francisco since 2021.
Phone from its California contractor license, CSLB #1066207
-
- Mostly sells systems you own
- (415) 624-3535
- allbaysolar.com
- 5743 Mission Street, San Francisco, CA 94112
- Typical system
- 5.7 kW
- Median price (owned)
- $4.19/W
- Leased / PPA
- 0%
- With battery
- 27%
All Bay Solar Construction mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs SunPower panels with Enphase microinverters. 27% of its systems here include a home battery. Its median price for an owned system, $4.19/W, is 14% below the San Francisco median of $4.89/W. A typical system is 5.7 kW, about 14 panels, and it has installed in San Francisco since 2014. It is also among the top installers in San Mateo.
Phone from its California contractor license, CSLB #962034
-
Serves San Francisco, CA · no office address listed
- Mostly sells systems you own
- Most battery installs
- Typical system
- 5.3 kW
- Median price (owned)
- $4.96/W
- Leased / PPA
- 0%
- With battery
- 84%
Tesla mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs Hanwha Q CELLS panels with Tesla inverters. 84% of its systems here include a home battery, well above the San Francisco average of 35%. Its median price for an owned system, $4.96/W, is close to the San Francisco median. A typical system is 5.3 kW, about 13 panels, and it has installed in San Francisco since 2001. It is also among the top installers in 84 other cities we rank, including Fremont and Sunnyvale.
- Map & reviews ↗
Solarunion
- Mostly sells systems you own
- (888) 815-6633
- 1700 Montgomery St Ste 108, San Francisco, CA 94111
- Typical system
- 4.8 kW
- Median price (owned)
- $4.39/W
- Leased / PPA
- 0%
- With battery
- 30%
Solarunion mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs Hanwha Q CELLS panels with SolarEdge inverters with power optimizers. 30% of its systems here include a home battery. Its median price for an owned system, $4.39/W, is 10% below the San Francisco median of $4.89/W. A typical system is 4.8 kW, about 12 panels, and it has installed in San Francisco since 2002.
- Map & reviews ↗
Occidental Power
- Mostly sells systems you own
- (415) 681-8861
- oxypower.com
- 5982 Mission Street, San Francisco, CA 94112
- Typical system
- 5.0 kW
- Median price (owned)
- $5.10/W
- Leased / PPA
- 0%
- With battery
- 29%
Occidental Power mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs Solaria panels with SolarEdge inverters with power optimizers. 29% of its systems here include a home battery. Its median price for an owned system, $5.10/W, is close to the San Francisco median. A typical system is 5.0 kW, about 13 panels, and it has installed in San Francisco since 2001.
Phone from its California contractor license, CSLB #591549
-
- Mostly sells systems you own
- (707) 285-7037
- 1740 Corporate Circle, Petaluma, CA 94954
- Typical system
- 6.4 kW
- Median price (owned)
- $4.70/W
- Leased / PPA
- 0%
- With battery
- 34%
Rockin Roofers mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs United Renewable Energy panels with SolarEdge inverters with power optimizers. 34% of its systems here include a home battery. Its median price for an owned system, $4.70/W, is close to the San Francisco median. A typical system is 6.4 kW, about 16 panels, and it has installed in San Francisco since 2013. It also works as a roofing contractor, which helps if the roof needs repairs before the panels go on. It is also among the top installers in 3 other cities we rank, including San Mateo and San Rafael.
Phone from its California contractor license, CSLB #991938
-
- Mostly sells systems you own
- Lowest median price in this list
- (888) 650-4750
- nrgcleanpower.com
- 75 E Santa Clara St, San Jose, CA 95113
- Typical system
- 6.5 kW
- Median price (owned)
- $3.98/W
- Leased / PPA
- 0%
- With battery
- 38%
NRG Clean Energy mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs REC Group panels with Enphase microinverters. 38% of its systems here include a home battery. Its median price for an owned system, $3.98/W, is 19% below the San Francisco median of $4.89/W. A typical system is 6.5 kW, about 16 panels, and it has installed in San Francisco since 2012. It is also among the top installers in 2 other cities we rank, including Oakland and San Jose.
-
- Mostly sells systems you own
- (415) 558-1786
- albionpower.com
- 218 Pierce St, San Francisco, CA 94117
- Typical system
- 7.2 kW
- Median price (owned)
- $5.21/W
- Leased / PPA
- 0%
- With battery
- 40%
Albion Power Company mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs Maxeon Solar panels with Enphase microinverters. 40% of its systems here include a home battery. Its median price for an owned system, $5.21/W, is 7% above the San Francisco median of $4.89/W. A typical system is 7.2 kW, about 18 panels, and it has installed in San Francisco since 2007. It is also among the top installers in Berkeley.
Phone from its California contractor license, CSLB #878027
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Serves San Francisco, CA · no office address listed
Sunrun mostly sells leases and power purchase agreements: 73% of its systems here were leased or on a PPA, so the homeowner pays monthly and doesn't own the panels. Its most common setup here pairs JA Solar panels with SolarEdge inverters with power optimizers. 47% of its systems here include a home battery. A typical system is 5.1 kW, about 13 panels, and it has installed in San Francisco since 2000. It is also among the top installers in 107 other cities we rank, including Bakersfield and San Diego.
Comparing quotes in San Francisco?
Divide each quote's total, before incentives, by the system size in watts. Homeowners in San Francisco who bought their system paid a median of $4.89/W in 2023–2025. Reject any 2026 quote that subtracts a 30% federal tax credit from a purchase: that credit ended in 2025.
How to check a solar quote →Solar Battery Installers in San Francisco
868 of the 2,486 home solar systems installed in San Francisco in 2023–2025 (35%) included a home battery, put in by 92 companies. These installed the most:
| Installer | With battery | Of its installs | Median price | Leased / PPA |
|---|---|---|---|---|
| 1. Luminalt | 208 | 48% | $8.23/W | 0% |
| 2. Tesla | 100 | 84% | $5.29/W | 0% |
| 3. Sutro Power | 59 | 32% | $6.27/W | 0% |
| 4. All Bay Solar Construction | 41 | 27% | $6.00/W | 0% |
| 5. Solarunion | 30 | 30% | — | 0% |
- Most common battery: Tesla (61% of those with a known brand), then Enphase Energy (14%).
- What a battery adds: owned systems with one had a median of $6.39/W, against $4.89/W for all home systems in San Francisco. The recorded price includes the battery, so the gap (+1.50 $/W on a 5.8 kW system) is roughly what it cost.
- Battery on most of their jobs: Tesla (84%). The others add one on some jobs, not by default.
- Lowest median price among them: NRG Clean Energy, at $4.84/W for systems the homeowner bought.
Ask whether a battery quote backs up the whole house or only a subpanel, and size it from your bills: one 13 kWh battery covers essentials overnight, not central air. Under California's Net Billing Tariff (from April 2023) exported solar earns little, so storing it for evening use is what makes a battery pay. More in Tesla Powerwall installation.
Home Solar in San Francisco by the Numbers
Based on 2,486 residential systems installed in San Francisco between 2023 and 2025, as reported to utilities and state agencies.
Most-installed panel brands
- SunPower
- Hanwha Q CELLS
- REC Group
Most-installed inverter brands
- Enphase Energy
- SolarEdge
- SunPower
How these brands compare nationwide: share, price and leasing →
Home installations per year
Median price of owned systems by year: 2020: $4.75/W · 2021: $4.60/W · 2022: $4.68/W · 2023: $4.68/W · 2024: $4.88/W · 2025: $5.69/W.
Solar Panel Repair in San Francisco
When a system stops producing, the best first call is an established local company. The companies ranked above installed systems in San Francisco through 2025, so they know the equipment on local roofs. Many will service a system they didn't install, but not all — ask before you book, and expect a diagnostic fee.
35% of the home systems installed here in 2023–2025 use Enphase Energy inverters, followed by SolarEdge (23%). Enphase systems use a microinverter under each panel, so one failure usually knocks out a single panel and the monitoring app shows which one. Systems with a central (string) inverter — SolarEdge and others — stop producing entirely when that inverter fails; a dark screen or an error code on the unit on your wall is the usual sign.
Checks to do before you call anyone: solar troubleshooting guide. Storm damage, a roof leak or a burning smell: what to do first.
Installers That Closed or Went Bankrupt in San Francisco
At least 1,264 home solar systems in San Francisco were installed by companies that have since closed, liquidated or filed for bankruptcy. They are left out of the ranking above. If one of them installed your system, its workmanship warranty is likely gone — but panel and inverter warranties come from the manufacturer and usually survive the installer.
- Sungevity419 systems in San Francisco
Sungevity filed for Chapter 11 bankruptcy in March 2017. Source: Solar Power World
- SunPower376 systems in San Francisco
Filed for Chapter 11 bankruptcy in August 2024. Its assets were sold off. The SunPower brand now belongs to Complete Solaria, a different company that renamed itself SunPower in 2025. Source: Utility Dive
- RGS Energy208 systems in San Francisco
Exited home solar installation in 2019 and filed for Chapter 7 bankruptcy in 2020. Source: Solar Power World
- Freedom Forever87 systems in San Francisco
Filed for Chapter 11 in April 2026; converted to Chapter 7 liquidation in August 2026. Source: pv magazine USA
- Infinity Energy52 systems in San Francisco
Ceased operations in 2023. Source: Forme Solar
- PetersenDean51 systems in San Francisco
Filed for Chapter 11 bankruptcy in June 2020; its assets were sold in 2021. Source: Solar Power World
- American Solar Direct37 systems in San Francisco
Filed for Chapter 7 bankruptcy in June 2017. Source: pv magazine USA
- Titan Solar34 systems in San Francisco
Ceased operations and filed for Chapter 7 in June 2024. Source: PV Tech
- Skytech Solar792 systems in San Francisco
No installations recorded anywhere in California after 2024 (records run through 2025). That does not by itself mean the company closed — check before relying on it for service.
- Allbay Solar162 systems in San Francisco
No installations recorded anywhere in California after 2019 (records run through 2025). That does not by itself mean the company closed — check before relying on it for service.
- Golden Gate Solar136 systems in San Francisco
No installations recorded anywhere in California after 2022 (records run through 2025). That does not by itself mean the company closed — check before relying on it for service.
- Fidelity Home Energy107 systems in San Francisco
No installations recorded anywhere in California after 2024 (records run through 2025). That does not by itself mean the company closed — check before relying on it for service.
See the full list of solar companies that went out of business and what still works if yours is one of them.
Solar in San Francisco: Common Questions
Who installs the most solar panels in San Francisco?
In the most recent three years of records (2023–2025), Luminalt installed 436 home systems in San Francisco, more than any other company. Sutro Power (183) and All Bay Solar Construction (150) came next. Volume shows local experience, not workmanship, so compare quotes and reviews before choosing.
How much does a solar system cost in San Francisco?
Homeowners who bought their system outright paid a median of $4.89/W before incentives, and the typical system was 5.5 kW — about $27,000 in total. Prices vary by installer: in the ranking above, the median ranges from $3.98/W to $6.60/W.
Do most people in San Francisco buy or lease their panels?
94% bought their system and 6% leased it or signed a power purchase agreement (PPA). With a lease or PPA you pay little upfront, but you don't own the panels and the savings are smaller over the contract. Some installers sell almost only one way — check the "Leased / PPA" figure for each company in the ranking.
Who repairs solar panels in San Francisco?
Start with the companies in the ranking above: Luminalt, Sutro Power and All Bay Solar Construction did the most work here, and an installer that knows the equipment on local roofs can usually diagnose a fault faster. If your system was leased or is on a PPA, call the company you pay each month first — maintenance is normally its job.
Can I still get the federal solar tax credit in 2026?
Not as a homeowner buying the system: the 30% residential credit (Section 25D) ended on December 31, 2025. Be wary of any quote that still subtracts it from the price. See our 2026 solar tax credit guide for what's left.
What if my solar installer went out of business?
Your panels and inverters are still covered by their manufacturers' warranties; what you lose is the installer's workmanship and roof-leak warranty. If the system is leased or on a PPA, the company you pay each month is usually responsible for repairs, and any active company in the ranking can take over service. See the installers that closed in San Francisco and what still works when an installer closes.
What do homeowners in San Francisco pay for electricity?
Residential customers in California pay an average of 34.74¢ per kWh, 99% above the national average. The higher the rate, the faster solar pays for itself. Source: EIA, Electric Power Monthly, Table 5.6.A.
No company pays to be listed or to rank higher, and any ad on this site is labeled. Before you sign, confirm the contractor license, insurance and recent reviews, and get at least three quotes. If a company in San Francisco has closed, moved or changed its phone number, tell us and we'll check it.
How This Ranking Works
Companies are ranked by the home solar systems they installed here in 2023–2025, from utility and state records; each needs at least 10 local installations and must still have been installing in 2025. Closed or bankrupt companies are removed and listed separately. The count shows local experience, not workmanship or service.
Source: Tracking the Sun, Lawrence Berkeley National Laboratory (2026 edition), licensed CC BY 4.0. In New York and New Jersey, recent years come from the state programs' own records (NYSERDA and New Jersey's Clean Energy Program). Company names were standardized and closures checked against news reports by Solar Power Fix. More about our methodology.
Solar system not producing in San Francisco?
The checks to do before you call anyone: the inverter screen, the breakers, the monitoring app and what each error code means.