Three verified installers cover San Diego, and the two locals have 115 years of operating history between them. The San Diego-specific truth: SDG&E’s rates are among the highest in the country and its customers sell exports under NEM 3.0, so the winning system here pairs panels with a battery and the winning installer proves it will still exist to service both. Longevity is not a nicety in this market; it is the product.
San Diego went first into the era the rest of the country is still reading about. Its utility charges some of the steepest residential rates anywhere, its solar customers were the earliest and loudest adopters, and when NEM 3.0 cut export credits, this market learned fastest that panels alone no longer tell the whole story. It also learned, painfully, that big local names can vanish and take their warranties with them. Our 3 picks are built around those two lessons: battery-era fluency and companies old enough to trust with a 25-year promise.
NEM 3.0 Hit San Diego First and Hardest
- Exports earn little; self-use earns a lot. Under NEM 3.0, power sent to the grid is credited at a fraction of the retail rate, while every kilowatt-hour you use directly avoids some of the country’s highest prices. That flips system design toward batteries and load shifting, and a proposal still modeling one-for-one crediting was written for 2022.
- The battery is a design decision, not an upsell. Sizing storage to your evening usage is engineering; “the biggest battery we sell” is not. Ask to see the load profile behind the recommendation.
- Hold the panel price to $2.77 per watt. California’s competitive installed price per the EcoGen Solar Cost Index puts a 7 kW array near $19,400 before storage. Batteries and panel upgrades belong as named line items on top, each with its own justification.
The San Diego Bench, Oldest First
Baker Electric Home Energy
The longevity answer in company form: a family electrical business wiring San Diego County homes since 1938, headquartered on Wineridge Place in Escondido, with CSLB licence 858088 and four trade classifications printed on its own site. In a market that watched prominent installers fold, an 88-year operating history is the strongest warranty backing on this page.
Stellar Solar
The solar specialist that outlived the shakeout: San Diego-based since 1998 with 16,000+ customers, its CSLB C-10 licence 749095 printed on its site, and Certified Premier Tesla Powerwall installer status, which matters in a battery-first market. Twenty-eight years of local installs also means twenty-eight years of roofs it still answers for; ask to see service response times in writing.
Solar Optimum
The statewide bench: Glendale-headquartered since 2008 with CSLB 972228 printed and a 25-year end-to-end warranty covering panels, inverters, racking, roofing and workmanship. It brings big-operator scheduling capacity to San Diego; the question to settle is which local crew installs and who answers a service call here in year 6.
Three Eras of Installer, One Table
Installer | Operating since | Paperwork you can check | Make them show you |
|---|---|---|---|
Baker Electric Home Energy | 1938 | CSLB 858088, 4 classifications | Battery sizing from your load |
Stellar Solar | 1998 | CSLB C-10 749095 | Service response in writing |
Solar Optimum | 2008 | CSLB 972228 + 25-yr warranty | The named San Diego crew |
Your rates, your evening usage and the honest price band are all measurable before anyone sketches a roof layout. Enter your ZIP code and we will start the math from your side of the meter.
Price a battery-ready system for your San Diego roof
Lessons San Diego Already Paid For
The Battery-Era Questions for San Diego Bidders
What export rate did you model, and where does it come from?
How did you size the battery, and what does it cover in an outage?
What is my panel price per watt before storage?
How long have you operated under this name and licence?
How We Rank Solar Companies
Rankings are built from what we can verify, never from who pays us. For San Diego, five weighted factors:
Frequently Asked Questions
Baker Electric Home Energy, Stellar Solar and Solar Optimum make up our vetted San Diego network for 2026. Baker ranks first: an Escondido family business operating since 1938 with its CSLB licence and four trade classifications printed on its own site.
California’s competitive installed price is $2.77 per watt before incentives, per the EcoGen Solar Cost Index, so a 7 kW array lands near $19,400 before storage. Most San Diego systems now add a battery as a separate named line item, which changes the total but also the savings.
Yes, but the design changed: with exports credited at a fraction of retail and some of the highest electric rates in the country, the value now comes from using your own power, usually with a battery. A well-designed solar-plus-storage system against SDG&E rates remains one of the stronger cases anywhere.
Weigh operating history, a licence number you can look up, and a real service department over promises. San Diego has seen prominent installers close and orphan their warranties, which is why our list leads with companies founded in 1938 and 1998.
For most new systems, yes in economic terms: NEM 3.0 pays little for exports, so storing afternoon production for evening use is where the savings live. The battery should be sized from your actual usage, with the load math shown in the proposal.
Reading the whole state? Our California company rankings cover the NEM 3.0 market statewide, the Los Angeles rankings show the one big exception, and the California cost guide holds the price math.
Buy from a company built to outlast its warranty. Enter your ZIP code and compare the verified San Diego bench.
Compare the verified San Diego companies
Sources
EcoGen America reviewed California Public Utilities Commission Net Billing Tariff resources, SDG&E interconnection and rate resources, the California Contractors State License Board lookup, installer base, licence, warranty and history disclosures stated by the companies themselves, and federal tax guidance for this article. Sources were accessed August 14, 2026, unless another date is listed below.
- California Public Utilities Commission. Net Billing Tariff (NEM 3.0) Resources. The state tariff governing SDG&E solar exports. Accessed August 14, 2026.
- San Diego Gas & Electric (SDG&E). Residential Rate and Interconnection Resources. Utility resource for San Diego meters. Accessed August 14, 2026.
- California Contractors State License Board (CSLB). Licence Lookup. The state’s contractor register. Accessed August 14, 2026.
- Baker Electric Home Energy. Company History, Base and Licence Disclosures. Installer-stated information, including CSLB 858088. Accessed August 14, 2026.
- Stellar Solar. Company History, Licence and Credential Disclosures. Installer-stated information, including CSLB C-10 749095. Accessed August 14, 2026.
- Solar Optimum. Company Base, Licence and Warranty Disclosures. Installer-stated information, including CSLB 972228. Accessed August 14, 2026.
- Internal Revenue Service (IRS). FAQs for Modification of Sections 25C, 25D, 25E, 30C, 30D, 45L, 45W and 179D under Public Law 119-21. Federal guidance confirming termination of the residential clean energy credit for installations completed after December 31, 2025. Accessed August 14, 2026.
