Where Ambrose Solar Ranks
Position among installers of home solar in each city, by installations in the most recent three years of records, and how Ambrose Solar compares with the local market there.
Its strongest market is Fairfield, where it accounts for 6% of the home systems with a known installer.
| City | Rank | Installations | Local share | Price vs. local median | Leased (city average) |
|---|---|---|---|---|---|
| Fairfield, California | #3 | 195 | 6% | 12% higher | 1% (35%) |
| Vallejo, California | #4 | 66 | 4% | 3% higher | 0% (50%) |
| Richmond, California | #8 | 21 | 1% | 8% higher | 0% (33%) |
| Concord, California | #9 | 42 | 2% | 10% higher | 0% (34%) |
What Ambrose Solar Installs
- Typical system size
- 8.5 kW
- Leased or on a PPA
- <1%
- Installed with a battery
- 62%
Mostly sells systems the homeowner owns, paid in cash or with a loan.
Panel brands
- SunPower (45%)
- REC Group (33%)
- Waaree Energies Limited (6%)
Inverter brands
- Enphase Energy (45%)
- Tesla (33%)
- Enphase Energy (15%)
Ambrose Solar Prices Compared With the State
Median price per watt of systems the homeowner bought outright, before incentives.
| State | Ambrose Solar | State median | Difference |
|---|---|---|---|
| California (2023–2025) | $4.88/W | $4.25/W | 15% higher |
Home Installations per Year
Records for the most recent year can be incomplete while utilities finish reporting.
Where Ambrose Solar Installs Most
| City | Installations (2023–2025) |
|---|---|
| Vacaville, CA | 503 |
| Fairfield, CA | 195 |
| Napa, CA | 84 |
| Vallejo, CA | 66 |
| Dixon, CA | 62 |
| Davis, CA | 58 |
| Walnut Creek, CA | 48 |
| Concord, CA | 42 |
| Lafayette, CA | 37 |
| Woodland, CA | 35 |
| Winters, CA | 33 |
| Novato, CA | 30 |
| West Sacramento, CA | 27 |
| Benicia, CA | 26 |
| Suisun City, CA | 26 |
Specialist Rankings
Where Ambrose Solar ranks among the companies that install the most systems with a battery or with a given inverter brand.
- Solar Battery Installers in Fairfield, CA: #3 (119 systems)
- Solar Battery Installers in Vallejo, CA: #4 (38 systems)
- Solar Battery Installers in Richmond, CA: #6 (12 systems)
- Solar Battery Installers in Concord, CA: #9 (22 systems)
Other Top Installers in Fairfield
The companies ranked next to Ambrose Solar in Fairfield, by home installations in 2023–2025.
| Company | Installations | Median price | Leased / PPA |
|---|---|---|---|
| Sunrun | 531 | $4.44/W | 86% |
| Citadel Roofing and Solar | 416 | $2.81/W | <1% |
| North Valley | 191 | — | 98% |
| Bright Planet Solar | 111 | $5.58/W | 64% |
| Tesla | 100 | $4.46/W | 0% |
| V3 Electric | 64 | — | 75% |
Ambrose Solar: Common Questions
Is Ambrose Solar still in business?
Ambrose 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: its California license (CSLB #979872) shows whether it is active, and recent Google reviews show whether it is still answering customers.
Does Ambrose 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 Ambrose Solar install?
Panels: SunPower (45%), REC Group (33%) and Waaree Energies Limited (6%). Inverters: Enphase Energy (45%), Tesla (33%) and Enphase Energy (15%). Shares of its home systems in 2023–2025 with a known brand.
How much does Ambrose Solar charge for solar?
In California (2023–2025), homeowners who bought a system from Ambrose Solar paid a median of $4.88/W before incentives — 15% higher than the state median of $4.25/W. For its typical 8.5 kW system, that is about $41,500. By city: 12% higher than the Fairfield median; 3% higher than the Vallejo median; 8% higher than the Richmond median.
Does Ambrose Solar install solar batteries?
62% of its home systems in 2023–2025 included a battery. It ranks among the top battery installers in Fairfield, CA, Vallejo, CA, Richmond, CA.
Where does Ambrose Solar install solar?
Most of its recent work is in Vacaville (503), Fairfield (195), Napa (84), Vallejo (66) and Dixon (62). It is ranked in 4 cities in California.
Before You Sign With Ambrose Solar
- California license: CSLB #979872 (B, C-10), issued 01/02/2013, registered to AMBROSE SOLAR in Vacaville. It appears in the state's list of active licenses. Check its current status on the CSLB site.
- Reviews and contact details: call (707) 999-8036 (the number on its license) or see Ambrose 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 Ambrose Solar with other installers
The Fairfield ranking puts Ambrose Solar next to the other companies that install the most there, with each one's price and leasing share.
Top solar installers in Fairfield →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.