1
Semper Solaris Editor's pick
Best for: Solar plus battery backup
Veteran-owned and a Tesla Powerwall Certified Premier Installer; one of California's most awarded contractors.
Est. 2012✓ CSLB #978152San Diego
Best Solar Installers in San Diego (2026)
With high electricity rates and abundant sun, California remains one of the best markets for home solar — but under NEM 3.0, pairing panels with a battery matters more than ever, so we favored installers with strong storage credentials. Every installer below holds an active CSLB license and a verifiable review record across the San Diego area.
At a glance
| # | Company | Rating | Reviews | Since | Best for |
|---|---|---|---|---|---|
| 1 | Semper SolarisSan Diego | ★★★★★ | 1,510 | 2012 | Solar plus battery backup |
| 2 | Stellar SolarOceanside | ★★★★★ | 680 | 1998 | Long track record and premium equipment |
| 3 | SolarTechEl Cajon | ★★★★★ | 800 | 2001 | Full-service solar plus roofing and maintenance |
| 4 | Sunline EnergySan Diego | ★★★★★ | 207 | 2012 | Solar with EV charging and storage |
| 5 | Baker Home EnergyEscondido | ★★★★★ | 776 | 1938 | Established whole-home energy provider |
| 6 | Action SolarSan Diego | ★★★★★ | 100 | 1975 | A long-established local installer |
Ordered by our editorial score. Ratings reflect public review data as of June 2026. See how we rank →
The 6 best solar installers in San Diego
2
Stellar Solar
Best for: Long track record and premium equipment
San Diego's original solar installer (since 1998) with 16,000+ installs and SunPower Master Dealer status.
Est. 1998✓ CSLB (C-10)Oceanside
3
SolarTech
Best for: Full-service solar plus roofing and maintenance
Named a Top Solar Contractor in the US (2025); 20+ years of residential and commercial solar.
Est. 2001✓ CSLB #865321 (C-46)El Cajon
4
Sunline Energy
Best for: Solar with EV charging and storage
Tesla Powerwall Certified Installer with in-house crews; 3,000+ installs and 80%+ referral business.
Est. 2012✓ CSLB #971708San Diego
5
Baker Home Energy
Best for: Established whole-home energy provider
Family-rooted Southern California contractor since 1938 with 15,000+ home-energy customers.
Est. 1938Escondido
6
Action Solar
Best for: A long-established local installer
Serving Southern California since 1975 with 45+ years of solar and electrical experience.
Est. 1975✓ CSLB #1083840San Diego
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What to look for in a San Diego solar installer
- An active CSLB contractor's license with the right classification for solar installation — verify it free at https://www.cslb.ca.gov/.
- Battery certification (Tesla Powerwall Certified, Enphase) given NEM 3.0 economics.
- In-house installation crews rather than subcontracted labor, for accountability.
- A clear production guarantee and a workmanship warranty backed by a company likely to last.
What it costs
A typical residential solar system runs in the five figures before incentives, with battery storage such as a Tesla Powerwall adding several thousand more. Compare cash, loan and lease quotes, and confirm who honors the workmanship warranty over time.
Frequently asked questions
Who is the best solar installer in San Diego?
In our 2026 review, Semper Solaris ranks first, with a 4.8-star rating across 1,510+ reviews plus strong licensing and credentials. Stellar Solar and SolarTech round out the top three. See the full ranking and our scoring method below.
How much does solar cost in San Diego?
A typical residential solar system runs in the five figures before incentives, and adding battery storage such as a Tesla Powerwall adds several thousand dollars more. Compare cash, loan and lease options and get at least three quotes.
Is solar still worth it in San Diego under NEM 3.0?
For most homeowners, yes — but the math has shifted. Under NEM 3.0, exported power is worth less, so pairing panels with a battery to store and self-use your production is now key to strong returns. Ask each installer for a NEM 3.0 savings analysis with and without storage.
How did VettedBest choose these solar installers?
We score active CSLB licensing, verified review volume and rating, years in business, and battery/storage credentials such as Tesla Powerwall certification. Placement is never for sale.