Best Solar Installers in Morgan Hill & Gilroy: 2026 Local Guide
PG&E rates in South Valley are high and climbing, NEM 3.0 changed the math on new systems, and battery-plus-solar is now the conversation most Morgan Hill and Gilroy homeowners want to have. These five companies install the most residential solar in our zip codes and are the ones still answering the phone when something needs warranty service in year four.
We verified every listing below via Yelp, EnergySage, the CSLB license database, and each company's website in April 2026.
1. SV Electric Solar
Known for: Top-rated electrical and solar contractor in Santa Clara County since 2009, owner-operated out of Morgan Hill.
Residential solar design and install, battery backup (including Enphase and Tesla Powerwall), panel upgrades, EV charger install, and general electrical. James and the crew handle the full stack in-house. Design, permit, install, and PG&E interconnection.
Reviewers keep noting they show up on time, keep the driveway clean, and answer the phone five years after the install.
Hours: Mon–Fri 8:00 AM – 5:00 PM. CSLB #1089597.
16840 San Benancio Way, Morgan Hill, CA 95037
2. Simmitri Inc.
Known for: 30 years in the Bay Area, thousands of installs, and one of the few crews that will re-roof and install solar on the same contract.
Full residential and commercial solar, battery storage (Tesla Powerwall certified), and re-roofing with solar. One contract, one crew. They also handle commercial rooftop and government solar projects, which is why their residential work tends to come with grown-up project management.
If your roof needs replacement before panels go on, Simmitri can do both at the same time and write one warranty across the stack. That single-warranty feature is the biggest reason South Valley homeowners over 50 pick them.
Hours: Mon–Fri 9:00 AM – 5:00 PM.
1910 Day Road, Gilroy, CA 95020
3. Sandbar Solar & Electric
Known for: 20+ years in business, 3,000+ installs, and a dedicated Morgan Hill landing page that tells you they are serious about the drive over 152.
Residential and commercial solar, battery storage, and EV chargers across Santa Cruz and south Santa Clara counties. They handle permitting and PG&E interconnection end-to-end.
Well-established warranty operation. If a panel or inverter fails in year seven, they still show up. That is not true of every solar installer you'll talk to.
Hours: Mon–Fri 8:00 AM – 5:00 PM.
2656 Mission St, Santa Cruz, CA 95060 (serves Morgan Hill zip codes 95037 and 95038)
4. Solar Optimum
Known for: EnergySage Installer of the Year 2024 and 2025, with 450+ 5-star reviews across California.
Residential solar and battery at scale, with Panasonic and REC Elite certifications and 25-year workmanship warranties. Their finance menu is broad. Cash, loan, PPA, lease. Useful if you are trying to do solar without pulling a chunk out of savings.
Best in this group for buyers who want an installer with depth, deep product lines, and a real warranty back-office. Not the cheapest quote you'll get. Not the last company standing in 15 years either.
Hours: Mon–Fri 8:00 AM – 6:00 PM, Sat 9:00 AM – 6:00 PM.
Bay Area office: 6012 Egret Ct, Benicia, CA 94510 (main HQ Glendale)
5. TN Electrical and Solar Services
Known for: 5.0 stars on Yelp and the crew South Valley homeowners call when they want to retrofit a battery onto existing panels.
Grid-tied solar, large arrays with complex battery backup, and energy storage retrofits onto existing solar systems. They handle both the electrical and the solar permitting, so you are not coordinating two contractors.
The right call if you already have solar and want to add a battery or inverter upgrade. The retrofit work they get right better than most.
Hours: Mon–Fri 8:00 AM – 5:00 PM.
1150 Murphy Ave, San Jose, CA 95131 (serves Gilroy and Morgan Hill)
How We Picked These
We started with EnergySage's 2026 Morgan Hill and Gilroy installer pages, cross-referenced Yelp and Google Maps, confirmed each company's CSLB C-10 (electrical) or C-46 (solar) license, and verified 2024 and 2025 review velocity. We do not trust a listing that went dark in 2023. We also filtered for companies that service Morgan Hill or Gilroy specifically, not just the broader "Bay Area."
FAQ
How much does residential solar cost in Morgan Hill and Gilroy in 2026?
A typical 6–8 kW grid-tied system runs $18,000 to $28,000 before incentives. Add a battery and you are usually $12,000 to $18,000 on top. The federal solar tax credit (30%) and California's SGIP battery rebate can shave meaningful money off. Ask for an itemized quote with and without the credit.
Is solar still worth it under NEM 3.0?
Mostly yes, but the economics now favor solar plus a battery rather than solar alone. Payback on solar-only has stretched to 10–12 years in South Valley; solar plus battery is typically 7–9 depending on your time-of-use behavior.
Do I need a permit to install solar?
Yes. Morgan Hill and Gilroy both require building and electrical permits for solar and battery installs. Your installer should pull them. If they ask you to, walk away. The City of Morgan Hill publishes permit info for solar PV and EV charging stations online; Gilroy does the same through the Building Division.
What about batteries like Tesla Powerwall or Enphase IQ?
Both are common in South Valley. Powerwall is the right pick if you already own a Tesla or plan to; Enphase IQ tends to pair well with Enphase microinverter installs. Ask the installer which option they are an authorized dealer for. Warranty coverage flows through the dealer.
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Last verified: April 20, 2026.