Best solar companies California Santa Clara County

Best solar companies in Santa Clara County (2026)

Scored installers are ranked by Solar.com Score. Not-yet-scored active companies remain listed below them by recent Santa Clara County installs, with public records beside every score.

86,450verified Santa Clara County systems
50established companies listed
$4.58/Wmedian reported cost, owned systemsSolar.com base price: $2.57/WMedian is self-reported installed cost on owned-system public interconnection records. Solar.com base price is a starting price before site-specific adders (roof complexity, electrical work, etc.); final quotes vary.
370installers active in 2025

Santa Clara County installers, ranked

Solar.com Score leads. Not-yet-scored active companies stay below by recent local installs.

Every company with 250 or more verified Santa Clara County installs is included. Scored companies receive the numbered rank; unscored rows show a dash.

Install counts: Santa Clara County only
#Installer
1Highlight Solar57 recent installs968 verifiedActive since 20120.0% leased5796820120.0%8.8303 reviewsGet a direct bid
2Nabu Energy84 recent installs319 verifiedActive since 20190.0% leased8431920190.0%8.7219 reviewsGet a direct bid
3Cinnamon Energy Systems366 recent installs1,456 verifiedActive since 20130.3% leased3661,45620130.3%8.7205 reviewsGet a direct bid
4Infinium Solar274 recent installs992 verifiedActive since 20180.0% leased27499220180.0%8.7450 reviewsGet a direct bid
5Sunwork Renewable Energy Projects37 recent installs478 verifiedActive since 20100.0% leased3747820100.0%8.697 reviewsGet a direct bid
6West Coast Solar5 recent installs400 verifiedActive since 201112.8% leased5400201112.8%8.62,516 reviewsGet a direct bid
7Green Solar34 recent installs268 verifiedActive since 20160.0% leased3426820160.0%8.560 reviewsGet a direct bid
8Cobalt Power Systems172 recent installs1,789 verifiedActive since 20030.0% leased1721,78920030.0%8.5131 reviewsGet a direct bid
9Clean Solar141 recent installs2,051 verifiedActive since 20080.0% leased1412,05120080.0%8.5550 reviewsGet a direct bid
10Simmitri22 recent installs311 verifiedActive since 20150.6% leased2231120150.6%8.4151 reviewsGet a direct bid
11Citadel Roofing And Solar270 recent installs1,075 verifiedActive since 20185.8% leased2701,07520185.8%8.4730 reviewsGet a direct bid
12Solar Technologies63 recent installs821 verifiedActive since 20020.0% leased6382120020.0%8.3210 reviewsGet a direct bid
13Your Energy Solutions134 recent installs901 verifiedActive since 20100.0% leased13490120100.0%8.3768 reviewsGet a direct bid
14Earth Electric Incorporated48 recent installs534 verifiedActive since 20110.0% leased4853420110.0%8.249 reviewsGet a direct bid
15Freedom Green Construction32 recent installs255 verifiedActive since 20190.0% leased3225520190.0%8.297 reviewsGet a direct bid
16Solar Optimum Design & Electrical146 recent installs1,031 verifiedActive since 20190.0% leased1461,03120190.0%8.2410 reviewsGet a direct bid
17American Array Solar Electric72 recent installs486 verifiedActive since 20150.0% leased7248620150.0%8.0358 reviewsGet a direct bid
18Simply Solar86 recent installs493 verifiedActive since 20162.0% leased8649320162.0%7.7258 reviewsGet a direct bid
19Hooked On Solar44 recent installs279 verifiedActive since 20160.7% leased4427920160.7%7.5410 reviewsGet a direct bid
20Nrg Clean Power197 recent installs1,018 verifiedActive since 20160.2% leased1971,01820160.2%7.4473 reviewsGet a direct bid

Solar.com Scores are live for 37 of the 50 listed companies. Companies marked “Not yet scored” have fewer than 20 analyzed review texts or are still being analyzed; scores appear as each company's full review record is processed. Select up to 4 companies to compare them category by category.

What this data covers: These counts come from PG&E interconnection records, the investor-owned utility service in Santa Clara County. Homes served by municipal or cooperative utilities interconnect through their local utility instead and do not appear in these records, so installers focused on those areas show fewer installs here than they actually build.

All install columns are Santa Clara County-specific. The county's 370 active installers in 2025 include smaller and occasional operations below the table floor. Acquired brands count under their current parent: SolarCity under Tesla Energy, Vivint Solar under Sunrun. No per-installer price is published in the table.

Solar.com Score

Every published customer review of each company, read in full and scored 0-10 across six categories. Under 20 analyzed review texts: not yet scored. Never for sale. How scores work →

Recent installs

Santa Clara County installs recorded in 2025 and 2026. A big historical name with thin recent activity is a different signal than a company building every week.

Verified installs

Residential systems in Santa Clara County public records listing that company as installer of record, all time. Real local activity, not review stars.

% leased

The share of that company's Santa Clara County systems recorded as third party owned, a lease or power purchase agreement. Ownership mix, not quality.

% leased counts systems recorded as third party owned, meaning a lease or power purchase agreement. The remainder are customer owned. Active installer counts include every company that filed an interconnection that year, down to small and occasional operations. Counts come from PG&E, SCE, and SDG&E interconnection records; homes served by municipal utilities like LADWP, SMUD, and city power departments interconnect through their local utility instead, so companies focused on those territories show fewer records here. The Solar.com Score is computed from the full text of each company's published customer reviews (star ratings and review counts sourced from Google and Yelp), plus verified public-record track record; it drives the default ranking for scored companies and is never for sale.

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Where solar.com fits in

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Same crews. Different price.

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Median installed price ($/W) - public records$4.58/W
Solar.com base price$2.57/W44% below median
How to read these pricesMedian is self-reported installed cost on owned-system public interconnection records. Solar.com base price is a starting price before site-specific adders (roof complexity, electrical work, etc.); final quotes vary.
50established companies ranked in the county

Cities in Santa Clara County

6 city guides from the same public-record dataset.

FAQ

Who has the best solar company reviews in Santa Clara County?

The Solar.com Score column ranks review evidence directly: we read the full text of every published customer review of the county's established installers and score what reviewers actually report, 0-10, across sales integrity, price transparency, communication, timeline reliability, workmanship, and after-install support. Sort the table by Solar.com Score or select companies to compare their reviews side by side.

Who is the best solar company in Santa Clara County?

The best company depends on your roof, utility, equipment needs, and whether you want to own the system or use a lease-style agreement. The table ranks scored installers by Solar.com Score, keeps unscored active companies below them, and shows verified Santa Clara County interconnection activity beside the score.

How are Santa Clara County installers ranked here?

The list includes every company with at least 250 verified Santa Clara County installs in CPUC Rule 21 public records through May 2026. Companies with a Solar.com Score are ranked by that score; companies not yet scored show a dash in the rank column and appear below the scored cohort, ordered by recent 2025-26 activity. Every install column is Santa Clara County-specific. Acquired brands are combined with their current parent, so SolarCity records count under Tesla Energy and Vivint Solar records count under Sunrun.

What does % leased (TPO) mean?

% leased (TPO) is the share of that installer's recorded systems that appear as third-party owned. It helps you see whether an installer historically skews toward owned systems, leases, or a mix.

How does solar.com pricing compare in Santa Clara County?

Santa Clara County has a median reported install cost of $4.58/W on owned-system CPUC records. Run your address through solar.com to see direct bids for your home, backed by the Best Price Guarantee.

Does being listed mean solar.com recommends that installer?

No. The public table reports verified installation volume only. The companies that bid on your home are separately vetted before they can compete through solar.com, and nobody can buy public placement here.

How we built this data

Methodology: Counts are residential PV interconnections in investor-owned-utility territory (PG&E, SCE, SDG&E) per CPUC Rule 21 public records through May 2026. Postal and name variants are merged. Municipal utility territory such as LADWP, Glendale, Pasadena, Burbank, Anaheim, and Riverside Public Utilities is not included in those CPUC counts. Counts show recorded installations, not quality ratings. Reported costs are self-reported on owned-system interconnections. No installer can pay for placement.

Who we are: Solar.com is a solar marketplace — we connect homeowners with installers and earn a fee when projects move forward. These rankings and scores are computed from public installation records and published customer reviews. No installer can pay for placement, and no installer — including those we work with — can pay to change a score.