Mon–Fri 8–5 $$$ Phone + online consultation
Specialty: Residential + commercial solar, in-house design and install
One of SD's oldest and most respected locally owned installers; strong reputation for post-install service.
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San Diego Solar Installer Guide
With some of the highest electricity rates in the country from SDG&E, San Diego homeowners have strong reasons to go solar — but choosing the right installer under NEM 3.0 rules matters more than ever. Here's who to call in 2026.
Last updated
Quick answer: A 6 kW rooftop system in San Diego costs $16,000–$22,000 before the 30% federal credit ($11,000–$15,500 after), and adding a battery — nearly required to pencil out under SDG&E's NEM 3.0 — adds $9,000–$15,000. Start with Sullivan Solar Power or Baker Electric Home Energy for locally owned installs, Renova Energy or Sunrun for battery-first systems, and Semper Solaris if financing terms matter most. Get three quotes: the same system varies $5,000–$10,000 between installers.
Local installed pricing lands around $2.70–$3.60 per watt before incentives, so a typical 6 kW system is $16,000–$22,000 and an 8–10 kW system for an all-electric home with an EV is $22,000–$34,000. The 30% federal residential clean energy credit still applies, taking a $20,000 system to about $14,000 net. Cash purchase beats leasing on lifetime savings almost every time in SDG&E territory; a lease or PPA only makes sense if you can't use the tax credit. With SDG&E residential rates among the highest in the nation, most cash-bought systems here pay back in 6–9 years — faster than almost anywhere else in the country.
Under NEM 3.0 the credit for power you export to SDG&E dropped roughly 75%, so exporting midday solar is worth far less than the 4–9 PM power you buy back at peak rates. That flips the math toward batteries: a 10–13 kWh battery ($9,000–$15,000 installed, also eligible for the 30% credit) lets you store the afternoon surplus and cover your own peak window, plus ride out a Santa Ana–season outage. If your budget only stretches to panels, size the array closer to your actual usage rather than oversizing to export.
Confirm the installer is a licensed C-46 or C-10 contractor in good standing, that the crew is in-house rather than subcontracted, and that the workmanship warranty is at least 10 years on top of the 25-year panel warranty. Ask who handles SDG&E interconnection paperwork and city permitting, how long permit-to-power typically takes (6–12 weeks is normal here), and what happens to the warranty if the company is acquired — several national installers have gone bankrupt, which is a real argument for the long-running local firms.
Specialty: Residential + commercial solar, in-house design and install
One of SD's oldest and most respected locally owned installers; strong reputation for post-install service.
Specialty: Solar + battery storage, EV charger installation
North County–based, employee-owned company with decades of San Diego electrical contracting history.
Specialty: Solar, roofing, battery storage, financing-focused
Veteran-founded company combining solar with roofing; competitive financing plans.
Specialty: Solar lease/PPA options, battery storage
Largest national residential solar company; strongest option if you want a $0-down lease instead of buying the system outright.
Specialty: Solar + battery, high-end system design
Strong reputation in North County (Rancho Santa Fe, Encinitas); known for premium system design and Tesla Powerwall installs.
Specialty: Residential solar, employee-owned installer
Employee-owned San Diego company; frequently cited in local 'best of' lists for customer service.
Specialty: Premium high-efficiency panels
Local dealer for SunPower's premium panel line — higher cost but higher per-panel wattage for space-constrained roofs.
Specialty: Residential solar + electrical panel upgrades
Handles electrical panel upgrades alongside solar, useful for older homes needing service panel work before install.
| System size | Budget installer | Standard installer | Premium (SunPower/high-end) |
|---|---|---|---|
| 5kW system (avg. small home) | $13,000–$16,000 | $16,500–$19,500 | $20,000–$24,000 |
| 7kW system (avg. medium home) | $18,000–$22,000 | $22,500–$26,500 | $27,000–$32,000 |
| 10kW system (larger home) | $25,000–$29,000 | $29,500–$34,000 | $35,000–$42,000 |
| Battery storage (e.g. Tesla Powerwall) | $9,000–$11,000 | $11,500–$14,000 | $14,500–$18,000 |
| Federal tax credit (30%) | −30% of total | −30% of total | −30% of total |
Add 20% cash tip on top of posted prices. Most shops add 3–4% surcharge on cards.
North County (Escondido, San Marcos, Encinitas)
Baker Electric Home Energy, Stellar Solar, Renova Energy.
Central San Diego (Kearny Mesa, North Park)
Sullivan Solar Power — closest HQ-based installer to the urban core.
East County (Santee, El Cajon)
Semper Solaris — headquartered in Santee.
South Bay / Chula Vista
Sandbar Solar & Electric — pairs panel upgrades with install.
Countywide (lease/PPA option)
Sunrun — for homeowners who want $0-down financing over ownership.
Under NEM 3.0, SDG&E credits exported solar at a much lower rate than under old NEM 2.0 — battery storage is now essential to maximize savings, not optional.
Get at least 3 quotes for the same system size — pricing varies significantly ($5,000–$10,000+) between installers for comparable equipment.
The 30% federal solar tax credit applies whether you buy outright or finance with a loan, but not with a lease or PPA (the company keeps that credit).
Ask about the installer's own crews vs. subcontractors — locally owned companies like Sullivan Solar and Stellar Solar typically use in-house installation teams, not third parties.
If your roof is older than 10-15 years, budget for roof replacement or reinforcement before or during solar installation — several installers (Semper Solaris, Sandbar) bundle roofing work.
Check the installer's workmanship warranty length (10-25 years) separately from the panel manufacturer's warranty (typically 25 years) — they're not the same thing.
A typical 7kW residential system runs $18,000–$26,500 before the 30% federal tax credit, bringing the net cost to roughly $12,600–$18,500. Premium panel brands like SunPower can push costs 15–25% higher.
Sullivan Solar Power and Baker Electric Home Energy are the most consistently top-rated locally owned installers. Sunrun is the best option if you want a lease/PPA with no upfront cost instead of ownership.
Yes, but the math has changed — NEM 3.0 credits exported energy at a much lower rate, so pairing solar with battery storage (to use your own power in the evening rather than exporting it) is now the standard recommendation for maximizing savings.
From signed contract to activation, expect 2–4 months: about 2–4 weeks for permitting and design, 1–2 days for physical installation, and several weeks for SDG&E inspection and permission-to-operate approval.
Buying (cash or loan) captures the 30% federal tax credit and typically saves more money over 20+ years. Leasing/PPA (offered by Sunrun) requires no upfront cost but the company keeps the tax credit and your long-term savings are lower.
It's not required, but it's increasingly recommended under NEM 3.0's lower export credit rates. A battery like the Tesla Powerwall lets you store excess daytime solar for evening use instead of selling it back to SDG&E at a low rate.
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Published by the Sandi Spots Editorial team at Sleep Coast LLC. Guides combine local perspective and source research. Check the individual guide for firsthand observations and follow official links to confirm current details.