Between 2023 and 2025, 13,592 home solar systems were installed in San Jose by 398 different companies. Sunrun installed the most (2,259, or 17% of the local market), followed by Tesla (2,040) and Bright Planet Solar (721). 23% 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 Jose by Home Installations
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Serves San Jose, CA · no office address listed
- Most installations
- Mostly leases & PPAs
- Typical system
- 5.7 kW
- Median price (owned)
- $4.49/W
- Leased / PPA
- 79%
- With battery
- 66%
Sunrun mostly sells leases and power purchase agreements: 79% 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. 66% of its systems here include a home battery. Its median price for an owned system, $4.49/W, is close to the San Jose median. A typical system is 5.7 kW, about 14 panels, and it has installed in San Jose since 2000. It is also among the top installers in 107 other cities we rank, including Bakersfield and San Diego.
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Serves San Jose, CA · no office address listed
- Mostly sells systems you own
- Most battery installs
- Typical system
- 7.3 kW
- Median price (owned)
- $4.55/W
- Leased / PPA
- <1%
- With battery
- 78%
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. 78% of its systems here include a home battery. Its median price for an owned system, $4.55/W, is close to the San Jose median. A typical system is 7.3 kW, about 18 panels, and it has installed in San Jose since 2001. It is also among the top installers in 84 other cities we rank, including Fremont and Sunnyvale.
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Serves San Jose, CA · no office address listed
- Mostly leases & PPAs
- Typical system
- 5.7 kW
- Median price (owned)
- $6.46/W
- Leased / PPA
- 75%
- With battery
- 58%
Bright Planet Solar mostly sells leases and power purchase agreements: 75% 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 Hanwha Q CELLS panels with SolarEdge inverters with power optimizers. 58% of its systems here include a home battery. Its median price for an owned system, $6.46/W, is 48% above the San Jose median of $4.37/W. A typical system is 5.7 kW, about 14 panels, and it has installed in San Jose since 2001. It is also among the top installers in 69 other cities we rank, including Stockton and Chula Vista.
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- Mostly sells systems you own
- (408) 883-7000
- cinnamon.energy
- 809 University Ave, Los Gatos, CA 95032
- Typical system
- 7.2 kW
- Median price (owned)
- $5.44/W
- Leased / PPA
- 0%
- With battery
- 69%
Cinnamon Solar mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs REC Group panels with SolarEdge inverters with power optimizers. 69% of its systems here include a home battery. Its median price for an owned system, $5.44/W, is 24% above the San Jose median of $4.37/W. A typical system is 7.2 kW, about 18 panels, and it has installed in San Jose since 2013. It is also among the top installers in Sunnyvale.
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- Mostly sells systems you own
- (888) 373-9379
- betterearth.solar
- 16720 Marquardt Avenue, Cerritos, CA 90703
- Typical system
- 6.6 kW
- Median price (owned)
- $3.94/W
- Leased / PPA
- 6%
- With battery
- 12%
Better Earth 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. 12% of its systems here include a home battery. Its median price for an owned system, $3.94/W, is 10% below the San Jose median of $4.37/W. A typical system is 6.6 kW, about 17 panels, and it has installed in San Jose since 2018. It is also among the top installers in 44 other cities we rank, including Fremont and San Bernardino.
Phone from its California contractor license, CSLB #1024460
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Serves San Jose, CA · no office address listed
- Mostly sells systems you own
- Lowest median price in this list
- Typical system
- 7.2 kW
- Median price (owned)
- $3.05/W
- Leased / PPA
- 0%
- With battery
- 47%
Solar Optimum Design Electrical mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs Panasonic panels with Enphase microinverters. 47% of its systems here include a home battery. Its median price for an owned system, $3.05/W, is 30% below the San Jose median of $4.37/W. A typical system is 7.2 kW, about 18 panels, and it has installed in San Jose since 2011. It is also among the top installers in 19 other cities we rank, including Torrance and Costa Mesa.
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- Mostly sells systems you own
- (619) 715-4054
- sempersolaris.com
- 1805 John Towers Avenue, El Cajon, CA 92020
- Typical system
- 6.0 kW
- Median price (owned)
- $5.15/W
- Leased / PPA
- 3%
- With battery
- 62%
Semper Solaris mostly sells systems the homeowner owns, paid in cash or with a loan. Its most common setup here pairs Hanwha Q CELLS panels with Enphase microinverters. 62% of its systems here include a home battery. Its median price for an owned system, $5.15/W, is 18% above the San Jose median of $4.37/W. A typical system is 6.0 kW, about 15 panels, and it has installed in San Jose since 2013. It is also among the top installers in 24 other cities we rank, including Oceanside and San Diego.
Phone from its California contractor license, CSLB #978152
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- Mostly sells systems you own
- (408) 583-8101
- infinium.inc
- 1190 Dell Ave Unit O, Campbell, CA 95008
- Typical system
- 7.0 kW
- Median price (owned)
- $4.46/W
- Leased / PPA
- 0%
- With battery
- 51%
Infinium Solar 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. 51% of its systems here include a home battery. Its median price for an owned system, $4.46/W, is close to the San Jose median. A typical system is 7.0 kW, about 17 panels, and it has installed in San Jose since 2018. It is also among the top installers in Sunnyvale.
Phone from its California contractor license, CSLB #1031953
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- Mostly sells systems you own
- (888) 551-7652
- cleansolar.com
- 1445 Koll Cir, San Jose, CA 95112
- Typical system
- 6.8 kW
- Median price (owned)
- $4.67/W
- Leased / PPA
- 0%
- With battery
- 50%
Clean Solar 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. 50% of its systems here include a home battery. Its median price for an owned system, $4.67/W, is 7% above the San Jose median of $4.37/W. A typical system is 6.8 kW, about 17 panels, and it has installed in San Jose since 2007. It is also among the top installers in Sunnyvale.
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- Mostly sells systems you own
- (888) 650-4750
- nrgcleanpower.com
- 75 E Santa Clara St, San Jose, CA 95113
- Typical system
- 7.2 kW
- Median price (owned)
- $3.92/W
- Leased / PPA
- 0%
- With battery
- 52%
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. 52% of its systems here include a home battery. Its median price for an owned system, $3.92/W, is 10% below the San Jose median of $4.37/W. A typical system is 7.2 kW, about 18 panels, and it has installed in San Jose since 2012. It is also among the top installers in 2 other cities we rank, including Oakland and San Francisco.
Comparing quotes in San Jose?
Divide each quote's total, before incentives, by the system size in watts. Homeowners in San Jose who bought their system paid a median of $4.37/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 Jose
6,803 of the 13,592 home solar systems installed in San Jose in 2023–2025 (50%) included a home battery, put in by 260 companies. These installed the most:
| Installer | With battery | Of its installs | Median price | Leased / PPA |
|---|---|---|---|---|
| 1. Tesla | 1,594 | 78% | $4.84/W | <1% |
| 2. Sunrun | 1,481 | 66% | $4.71/W | 90% |
| 3. Bright Planet Solar | 419 | 58% | $6.68/W | 68% |
| 4. Cinnamon Solar | 259 | 69% | $6.10/W | 0% |
| 5. Richard Heath Associates | 183 | 100% | — | 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 $5.20/W, against $4.37/W for all home systems in San Jose. The recorded price includes the battery, so the gap (+0.83 $/W on a 6.8 kW system) is roughly what it cost.
- Battery on most of their jobs: Tesla (78%), Sunrun (66%), Bright Planet Solar (58%), Cinnamon Solar (69%), Richard Heath Associates (100%), Semper Solaris (62%), Infinium Solar (51%), NRG Clean Energy (52%). The others add one on some jobs, not by default.
- Lowest median price among them: Solar Optimum Design Electrical, at $2.67/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.
Enphase Installers in San Jose
4,680 of the 13,592 home solar systems installed in San Jose in 2023–2025 (34%) used Enphase inverters, put in by 284 companies. These installed the most:
| Installer | With Enphase | Of its installs | Median price | Leased / PPA |
|---|---|---|---|---|
| 1. Solar Optimum Design Electrical | 221 | 75% | $3.11/W | 0% |
| 2. Infinium Solar | 218 | 82% | $4.22/W | 0% |
| 3. Semper Solaris | 159 | 59% | $4.61/W | 1% |
| 4. SWSS Electrical | 157 | 88% | $3.37/W | 29% |
| 5. Citadel Roofing and Solar | 146 | 93% | $2.78/W | 0% |
- Typical Enphase system: 6.4 kW at a median $3.97/W when bought, most often with Hanwha Q CELLS panels.
- Enphase on most of their jobs: Solar Optimum Design Electrical (75%), Infinium Solar (82%), Semper Solaris (59%), SWSS Electrical (88%), Citadel Roofing and Solar (93%), NRG Clean Energy (61%), Your Energy Solutions (62%), Sunternal Solar (76%), American Array Solar (66%). The others use Enphase on some jobs, not by default.
- Lowest median price among them: Citadel Roofing and Solar, at $2.78/W for systems the homeowner bought.
Enphase puts a microinverter under each panel, with a 25-year limited warranty; if one fails, only that panel stops. If your installer has closed, any of these companies can take over the system.
SolarEdge Installers in San Jose
3,036 of the 13,592 home solar systems installed in San Jose in 2023–2025 (22%) used SolarEdge inverters, put in by 136 companies. These installed the most:
| Installer | With SolarEdge | Of its installs | Median price | Leased / PPA |
|---|---|---|---|---|
| 1. Sunrun | 981 | 43% | $4.52/W | 68% |
| 2. Bright Planet Solar | 691 | 96% | $6.47/W | 75% |
| 3. Better Earth | 282 | 94% | $3.93/W | 5% |
| 4. Cinnamon Solar | 125 | 33% | $4.59/W | 0% |
| 5. Clean Solar | 75 | 30% | $4.47/W | 0% |
- Typical SolarEdge system: 6.0 kW at a median $4.45/W when bought, most often with JA Solar panels.
- SolarEdge on most of their jobs: Bright Planet Solar (96%), Better Earth (94%), Rockin Roofers (74%), Nabu Energy (61%), Nt Electric (74%). The others use SolarEdge on some jobs, not by default.
- Lowest median price among them: Nabu Energy, at $3.27/W for systems the homeowner bought.
SolarEdge pairs an optimizer under each panel with one inverter on the wall, warranted for 12 years (optimizers 25), so plan for one inverter replacement over the life of the panels. If your installer has closed, any of these companies can file the claim.
Home Solar in San Jose by the Numbers
Based on 13,592 residential systems installed in San Jose between 2023 and 2025, as reported to utilities and state agencies.
Most-installed panel brands
- Hanwha Q CELLS
- JA Solar
- REC Group
Most-installed inverter brands
- Enphase Energy
- SolarEdge
- Tesla
How these brands compare nationwide: share, price and leasing →
Home installations per year
Median price of owned systems by year: 2020: $3.97/W · 2021: $3.79/W · 2022: $4.01/W · 2023: $4.15/W · 2024: $4.79/W · 2025: $4.78/W.
Solar Panel Repair in San Jose
When a system stops producing, the best first call is an established local company. The companies ranked above installed systems in San Jose 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.
36% of the home systems installed here in 2023–2025 use Enphase Energy inverters, followed by SolarEdge (25%). 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 Jose
At least 7,205 home solar systems in San Jose 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.
- SunPower2,550 systems in San Jose
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
- PetersenDean1,773 systems in San Jose
Filed for Chapter 11 bankruptcy in June 2020; its assets were sold in 2021. Source: Solar Power World
- Sungevity685 systems in San Jose
Sungevity filed for Chapter 11 bankruptcy in March 2017. Source: Solar Power World
- Freedom Forever616 systems in San Jose
Filed for Chapter 11 in April 2026; converted to Chapter 7 liquidation in August 2026. Source: pv magazine USA
- Infinity Energy526 systems in San Jose
Ceased operations in 2023. Source: Forme Solar
- RGS Energy463 systems in San Jose
Exited home solar installation in 2019 and filed for Chapter 7 bankruptcy in 2020. Source: Solar Power World
- American Solar Direct210 systems in San Jose
Filed for Chapter 7 bankruptcy in June 2017. Source: pv magazine USA
- Titan Solar132 systems in San Jose
Ceased operations and filed for Chapter 7 in June 2024. Source: PV Tech
- Kuubix Energy130 systems in San Jose
Closed; its California contractor license has been revoked. Source: EnergySage
- Verengo84 systems in San Jose
Filed for Chapter 11 bankruptcy in September 2016; its last office closed in 2019. Source: pv magazine
- Solcius36 systems in San Jose
Filed for Chapter 7 bankruptcy in February 2024. Source: Solar Power World
- The Solar Company227 systems in San Jose
No installations recorded anywhere in California after 2018 (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 Jose: Common Questions
Who installs the most solar panels in San Jose?
In the most recent three years of records (2023–2025), Sunrun installed 2,259 home systems in San Jose, more than any other company. Tesla (2,040) and Bright Planet Solar (721) came next. Volume shows local experience, not workmanship, so compare quotes and reviews before choosing.
How much does a solar system cost in San Jose?
Homeowners who bought their system outright paid a median of $4.37/W before incentives, and the typical system was 6.4 kW — about $28,000 in total. Prices vary by installer: in the ranking above, the median ranges from $3.05/W to $6.46/W.
Do most people in San Jose buy or lease their panels?
77% bought their system and 23% 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 Jose?
Start with the companies in the ranking above: Sunrun, Tesla and Bright Planet Solar 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 Jose and what still works when an installer closes.
What do homeowners in San Jose 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 Jose 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 Jose?
The checks to do before you call anyone: the inverter screen, the breakers, the monitoring app and what each error code means.