Where Clean Solar Ranks
Position among installers of home solar in each city, by installations in the most recent three years of records, and how Clean Solar compares with the local market there.
Its strongest market is Sunnyvale, where it accounts for 2% of the home systems with a known installer.
| City | Rank | Installations | Local share | Price vs. local median | Leased (city average) |
|---|---|---|---|---|---|
| Sunnyvale, California | #6 | 40 | 2% | 15% higher | 0% (15%) |
| San Jose, California | #9 | 251 | 2% | 7% higher | 0% (23%) |
What Clean Solar Installs
- Typical system size
- 7.3 kW
- Leased or on a PPA
- <1%
- Installed with a battery
- 49%
Mostly sells systems the homeowner owns, paid in cash or with a loan.
Panel brands
- REC Group (50%)
- LG Electronics (12%)
- SunPower (9%)
Inverter brands
- Enphase Energy (35%)
- SolarEdge (30%)
- Tesla (23%)
Clean Solar Prices Compared With the State
Median price per watt of systems the homeowner bought outright, before incentives.
| State | Clean Solar | State median | Difference |
|---|---|---|---|
| California (2023–2025) | $4.78/W | $4.25/W | 12% higher |
Home Installations per Year
Records for the most recent year can be incomplete while utilities finish reporting.
Where Clean Solar Installs Most
| City | Installations (2023–2025) |
|---|---|
| San Jose, CA | 251 |
| Redwood City, CA | 45 |
| Los Altos, CA | 44 |
| Sunnyvale, CA | 40 |
| Menlo Park, CA | 37 |
| Cupertino, CA | 31 |
| Oakland, CA | 31 |
| San Carlos, CA | 30 |
| Los Gatos, CA | 26 |
| Fremont, CA | 22 |
| Morgan Hill, CA | 22 |
| Saratoga, CA | 21 |
| Mountain View, CA | 19 |
| San Mateo, CA | 19 |
| Campbell, CA | 18 |
Specialist Rankings
Where Clean Solar ranks among the companies that install the most systems with a battery or with a given inverter brand.
- SolarEdge Installers in San Jose, CA: #5 (75 systems)
- Solar Battery Installers in San Jose, CA: #9 (125 systems)
- Solar Battery Installers in Sunnyvale, CA: #9 (16 systems)
Other Top Installers in Sunnyvale
The companies ranked next to Clean Solar in Sunnyvale, by home installations in 2023–2025.
| Company | Installations | Median price | Leased / PPA |
|---|---|---|---|
| Tesla | 264 | $4.72/W | 0% |
| Sunrun | 246 | $4.05/W | 82% |
| Cinnamon Solar | 51 | $5.81/W | 0% |
| Citadel Roofing and Solar | 43 | $2.53/W | 0% |
| Solar Optimum Design Electrical | 43 | $3.01/W | 0% |
| Infinium Solar | 38 | $4.25/W | 0% |
Clean Solar: Common Questions
Is Clean Solar still in business?
Clean Solar was still installing home solar in 2025, the latest year in the public records we use, and it is not on our list of installers that closed or went bankrupt. Records lag a year or two, so confirm before you sign: recent Google reviews show whether it is still answering customers.
Does Clean Solar lease solar panels or sell them?
<1% of its home systems in 2023–2025 were leased or on a power purchase agreement, and 99% were bought by the homeowner. Mostly sells systems the homeowner owns, paid in cash or with a loan.
What solar panels and inverters does Clean Solar install?
Panels: REC Group (50%), LG Electronics (12%) and SunPower (9%). Inverters: Enphase Energy (35%), SolarEdge (30%) and Tesla (23%). Shares of its home systems in 2023–2025 with a known brand.
How much does Clean Solar charge for solar?
In California (2023–2025), homeowners who bought a system from Clean Solar paid a median of $4.78/W before incentives — 12% higher than the state median of $4.25/W. For its typical 7.3 kW system, that is about $35,000. By city: 15% higher than the Sunnyvale median; 7% higher than the San Jose median.
Does Clean Solar install solar batteries?
49% of its home systems in 2023–2025 included a battery. It ranks among the top battery installers in San Jose, CA, Sunnyvale, CA.
Where does Clean Solar install solar?
Most of its recent work is in San Jose (251), Redwood City (45), Los Altos (44), Sunnyvale (40) and Menlo Park (37). It is ranked in 2 cities in California.
Before You Sign With Clean Solar
- California license: ask for the license number and look it up on the CSLB site; solar work needs a C-46, C-10 or B license.
- Reviews and contact details: call (888) 551-7652 or see Clean Solar on Google Maps, where recent reviews tell you more than any ranking.
- Quotes: get at least three, and compare price per watt, equipment brands and the workmanship warranty — not just the monthly payment.
Compare Clean Solar with other installers
The Sunnyvale ranking puts Clean Solar next to the other companies that install the most there, with each one's price and leasing share.
Top solar installers in Sunnyvale →Where These Numbers Come From
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.