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TRUSTED BY VACAVILLE, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon93
    Verified solar panel services reviews

Top-Rated Solar panel pros in Vacaville - Updated Nov 2026

Avatar for NRG Clean Power
NRG Clean Power
4.6(
52
)
Solar Panel Install

Serving Vacaville, CA and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"We are so excited that NRG helped us to install Solar Panels on our house in San Francisco! Their entire team was wonderful from their first presentation providing us with all the information to the completion of the installation. Their installation staff was wonderful and completed the project without a hitch. Nicole Greenwood our customer service rep kept us informed of each step along the way and made everything easy. We had gotten estimates from two other companies and are glad we went with NRG. No worries and a wonderful experience. We will recommend NRG without reservation. Thanks to your whole team! Marge B."
Rooftop Solar
Solar Installation
Solar Panel Install
Home Solar Install
Solar System Install

+5

21 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for LEGENDARY ELECTRIC, LLC
LEGENDARY ELECTRIC, LLC
5.0(
19
)
Solar Panel InstallSolar Panels For Electric System - Install - For Business

Serving Vacaville, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Jeff was great to work with. He took the extra time to discuss questions we had while making sure our solar project was managed seamlessly from start to finish. Everything was planned for and taken care of, down to the small details where his crew took the time to color match the new electrical conduit on the roof as well as on the exterior wall of the house. The entire process was completed in a timely matter, from the initial planning stages, through permits, installation and inspections."
Brian P
Brian P
Brian P
Brian P
roof top solar

+1

10 neighbors recently requested a quote
Avatar for SOLARSESAME INC
SOLARSESAME INC
5.0(
6
)
Solar Panel Install

Serving Vacaville, CA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I had a wonderful experience with Solar Sesame. My salesperson Emanuel was professional, courteous and truly awesome to work with... Thank you guys so much..."
11.21 kW, Shingle Roof
11.21 kW, Shingle Roof
11.21 kW, Shingle Roof
Solar Panel Install
Solar Panel Install

+20

Response time5 hrs
Response rate100%
31 neighbors recently requested a quote
Avatar for Power On Solar
Power On Solar
4.6(
5
)
Solar Panel Install

Serving Vacaville, CA and surrounding areas

Approved

In business since 2016

Free estimates

We specialize in all your home solar panel and battery installs. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our home solar offerings below and call -or- click to schedule a free estimate today.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

26 neighbors recently requested a quote
Avatar for Sunriver Solar Power Systems
Sunriver Solar Power Systems
5.0(
2
)
Solar Panel Install

Serving Vacaville, CA and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Unfortunately my husband s company is moving us to the midwest. Even though we had a signed contract with Rick and Teresa at Sunriver Solar, they we very understanding and basically told us not to worry about it and to enjoy our next adventure. They even asked if they could help us with any of the moving stuff!!! They are a delight to work with, they do everything, they kept us up to date on what was going on, and, even though we could not work with them, we would highly recommend them. You really cannot go wrong with Sunriver Solar."
Reduce your carbon footpr
Grass Valley Ground Mount
Solar on a workshop
Home Installation
Home Installation

+12

Response time12 hrs
Response rate92%
Recommended by100%of homeowners
Avatar for Spartan Home Services
Spartan Home Services
4.5(
17
)
Solar Panel InstallSolar Panels For Electric System - Install - For Business

Serving Vacaville, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"I have to have my roof replaced of the 3 companies that came out Spartan was the only one who addressed the leak I was concerned about. The other companies were going to charge me a bunch of money and let it still leak. They were not going to address it until it was an issue and tell me it was not covered. Spartan was top notch start to finish. The guys working on the house were awesome as well as every one I worked with. I would highly recommend them."
Look at the steepness!
Front of house
Team work!
Everyone Stays Harnessed
Tiger Paw

+24

Response time1 day
2 neighbors recently requested a quote
Recommended by21%of homeowners
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Showing 1-10 of 147
Solar Panels FAQs, answered by experts

Rooftop solar panels supply energy to a single household, where a solar farm can power multiple homes at once with clean energy. Residential rooftop solar panels cost more per watt with a lower project total, and those panels only service the residence they are installed on (in most circumstances). With a solar farm, multiple households can buy into the project and share the overall cost.

The best way to save money on solar panels is to take advantage of federal and state solar incentives. For example, the solar investment tax credit (ITC) offered by the federal government can save 30% of your total—if you can take the entire credit, which is based on income taxes owed—or an average of around $9,000. You can check the Database of State Incentives for Renewables and Efficiency (DSIRE) for state and local incentives that could save you even more.

The best way to know if your roof can support solar panels is to hire a structural engineer. They’ll look at your roof and approve the design of your solar panel system or suggest changes. The best roofing for solar panels is made from strong materials like asphalt shingles and metal, but tile and gravel will work. Softer materials like thatch or temporary structures are not a good fit.

Depending on the climate in your area, the best time to install solar panels is either winter or early spring. Summer is a fine time to install panels, too, but it tends to be the busy season, so prices may be higher and companies may have packed schedules. The installation process can take more time than expected between getting permits and finalizing a design, so start as soon as you can.

You shouldn’t hook up a solar panel directly to a battery. That can damage the solar battery and your appliances over time. Instead, install a charge controller between your solar panel and solar battery. Charge controllers regulate voltage, prevent overcharging, and minimize the amount of electrical current to protect your battery from voltage spikes.

The Vacaville, CA homeowners’ guide to solar panel services

From average costs to expert advice, get all the answers you need to get your job done.