Best solar companies California San Diego County San Diego
Verified San Diego installs, review-backed Solar.com Scores, and the broader county market in one place. Public data, not paid placement.
What this data covers: counts come from investor-owned-utility interconnection records for San Diego service addresses. Homes served by municipal utilities interconnect through their city utility instead and do not appear here. Companies with fewer than 10 recorded local installs are not listed; many also build across San Diego County and beyond. See the full San Diego County ranking →
| # | Installer | |||||||
|---|---|---|---|---|---|---|---|---|
| 1 | Aloha Solar Power220 recent installs608 verifiedActive since 20200.0% leased | 220 | 608 | 2020 | 0.0% | 9.2 | Get a direct bid | |
| 2 | New Day Solar16 recent installs219 verifiedActive since 20130.0% leased | 16 | 219 | 2013 | 0.0% | 9.1 | Get a direct bid | |
| 3 | Cosmic Solar34 recent installs262 verifiedActive since 20110.4% leased | 34 | 262 | 2011 | 0.4% | 9.0 | Get a direct bid | |
| 4 | San Diego County Solar27 recent installs191 verifiedActive since 20121.0% leased | 27 | 191 | 2012 | 1.0% | 8.9 | Get a direct bid | |
| 5 | Stellar Solar205 recent installs3,037 verifiedActive since 20050.5% leased | 205 | 3,037 | 2005 | 0.5% | 8.9 | Get a direct bid | |
| 6 | San Diego Solar Install6 recent installs166 verifiedActive since 20100.0% leased | 6 | 166 | 2010 | 0.0% | 8.8 | Get a direct bid | |
| 7 | Sunline Energy154 recent installs2,322 verifiedActive since 20120.0% leased | 154 | 2,322 | 2012 | 0.0% | 8.7 | Get a direct bid | |
| 8 | Pacific Sun Technologies7 recent installs41 verifiedActive since 20150.0% leased | 7 | 41 | 2015 | 0.0% | 8.6 | Get a direct bid | |
| 9 | Solarfuze13 recent installs155 verifiedActive since 20140.0% leased | 13 | 155 | 2014 | 0.0% | 8.6 | Get a direct bid | |
| 10 | Green Energy Epc By Makello8 recent installs178 verifiedActive since 20140.0% leased | 8 | 178 | 2014 | 0.0% | 8.6 | Get a direct bid | |
| 11 | Jamar Power System17 recent installs234 verifiedActive since 20070.9% leased | 17 | 234 | 2007 | 0.9% | 8.6 | Get a direct bid | |
| 12 | West Coast Solar65 recent installs906 verifiedActive since 20100.2% leased | 65 | 906 | 2010 | 0.2% | 8.6 | Get a direct bid | |
| 13 | Alltech Solar32 recent installs447 verifiedActive since 20100.0% leased | 32 | 447 | 2010 | 0.0% | 8.6 | Get a direct bid | |
| 14 | Solhome18 recent installs18 verifiedActive since 20250.0% leased | 18 | 18 | 2025 | 0.0% | 8.5 | Get a direct bid | |
| 15 | Incentive Electric13 recent installs86 verifiedActive since 20160.0% leased | 13 | 86 | 2016 | 0.0% | 8.5 | Get a direct bid | |
| 16 | Alive Industries20 recent installs141 verifiedActive since 20140.0% leased | 20 | 141 | 2014 | 0.0% | 8.5 | Get a direct bid | |
| 17 | Sungenia Solar Solutions14 recent installs121 verifiedActive since 20160.0% leased | 14 | 121 | 2016 | 0.0% | 8.5 | Get a direct bid | |
| 18 | Wave Electric Energy15 recent installs136 verifiedActive since 20200.0% leased | 15 | 136 | 2020 | 0.0% | 8.5 | Get a direct bid | |
| 19 | Sattler Engineering32 recent installs306 verifiedActive since 20170.0% leased | 32 | 306 | 2017 | 0.0% | 8.5 | Get a direct bid | |
| 20 | Orange County Contracting Services20 recent installs21 verifiedActive since 20230.0% leased | 20 | 21 | 2023 | 0.0% | 8.4 | Get a direct bid |
Solar.com Scores are live for 64 of the 100 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.
% 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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Need the local solar math? The San Diego guide covers utility rates, incentives, and what changes the bid.
Read the San Diego solar guide →The table ranks scored companies by Solar.com Score, computed from customer review evidence and verified track record; 64 companies in this city currently carry a score. Companies not yet scored remain visible below the scored cohort by recent San Diego install activity. The best company for your home also depends on your roof, utility, and bid, which is why the same companies compete on price through solar.com.
Companies with enough review evidence are ranked by Solar.com Score. Not-yet-scored companies show a dash in the rank column and sit below them, ordered by recent 2025-26 installation activity recorded for San Diego addresses in CPUC interconnection records. No company can pay for placement.
Where a company clears the 20 analyzed-review floor, its Solar.com Score summarizes substantive customer review texts, weighted by reviewer credibility and recency. Select companies in the table to compare their review scores category by category, from sales integrity to long-term support.
Run your address through solar.com. Vetted installers compete on one identical scope for your home, pricing is locked online, and the Best Price Guarantee backs the winning number in writing.
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.