15 Best Solar Companies in Fremont, CA (2023 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Fremont based on:

  • Customer review scores
  • Service area for Fremont, CA
  • Company policies and services offered
  • Accreditations and certifications

Average Fremont homeowner saves $2,798/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated September 15, 2023

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Fremont

As a homeowner or business owner in Fremont, you may be considering switching to solar energy and curious about the best solar companies in your city. Solar could be a fantastic choice since it has many benefits. Over 20 years of offsetting your energy costs with a solar system, you can save about $33,000 on your utility bills.

As you set out on your search for the best solar companies in Fremont, you'll find that there are a large number of providers to choose from. So, we've organized a carefully curated list of the top solar companies in the area. To get an estimate of what it could cost to put solar panels on your roof, you can click the button below to get a quote from a certified installer near you.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch Rankings for Solar Companies in Fremont

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

SunPower Corporation

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Business installations
  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Integrated roofing

Website: https://us.sunpower.com/
Address: 51 Rio Robles, San Jose, CA 95134
Phone: 5105400550
Outstanding Local Installer
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EcoWatch Rating

4.1/5

High Definition Solar

  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Integrated roofing
  • Service icon Expert panel installation

Website: http://www.highdefinitionsolar.com/
Address: 1190 Burnett Ave, Concord, CA 94520
Phone: 9255668282
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunPower by The Solar Quote

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Integrated roofing
  • Service icon Energy storage solutions
  • Service icon Tailored solutions

Website: http://www.sunpowerbythesolarquote.com/
Address: 2819 W March Ln #154, Stockton, CA 95219
Phone: 8889446765
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Topdot Solar

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions

Website: http://www.topdotsolar.com/
Address: 2900 Newpark Mall suite 203, Newark, CA 94560
Phone: 8007315104
Outstanding Local Installer
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EcoWatch Rating

4.8/5

SunWork Renewable Energy Projects

  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Energy storage solutions
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Integrated roofing

Website: http://sunwork.org/
Address: 477 Valley Way, Milpitas, CA 95035
Phone: 6505209918
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Solar Bill Review

  • Pros icon Clear Pricing Policy
  • Pros icon Family-Operated Business
  • Pros icon Prompt Service Delivery
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Integrated roofing

Website: https://solarbillreview.com/
Address: 11501 Dublin Blvd STE 200, Dublin, CA 94568
Phone: 9258332641
Outstanding Local Installer
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EcoWatch Rating

4.5/5

Simply Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon End-to-end services
  • Service icon Home installations
  • Service icon Tailored solutions

Website: https://simplysolar.com/
Address: 4021 Clipper Ct, Fremont, CA 94538
Phone: 5105747676
Outstanding Local Installer
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EcoWatch Rating

4.9/5

SF Green Construction

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Home installations
  • Service icon Skilled repairs
  • Service icon Expert panel installation
  • Service icon Integrated roofing

Website: https://www.sfgreen.us/
Address: 2880 Zanker Rd Suite 203, San Jose, CA 95134
Phone: 6693693339
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Cobalt Power Systems Inc.

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Energy storage solutions
  • Service icon Tailored solutions

Website: https://www.cobaltpower.com/
Address: 2557 Wyandotte St, Mountain View, CA 94043
Phone: 6508177791
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Semper Solaris

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Skilled repairs
  • Service icon Home installations
  • Service icon Tailored solutions

Website: https://www.sempersolaris.com/locations/bay-area/
Address: 2505 Amaral Ct, Hayward, CA 94544
Phone: 6502032589
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Cool Earth Solar

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations

Website: http://www.coolearthsolar.com/
Address: 2174 Rheem Dr, Pleasanton, CA 94588
Phone: 9252238547
Outstanding Local Installer
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EcoWatch Rating

4.3/5

Nextracker Inc.

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation

Website: https://www.nextracker.com/
Address: 6200 Paseo Padre Pkwy, Fremont, CA 94555
Phone: 5102702500
Outstanding Local Installer
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EcoWatch Rating

4.2/5

CED Greentech

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation

Website: http://cedgreentechus.com/
Address: 31260 Wiegman Rd, Hayward, CA 94544
Phone: 5103305068
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Home Networks, Electric & Solar, Inc. (CA)

  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Energy storage solutions

Website: https://homenes.com/
Address: 838 Charcot Ave, San Jose, CA 95131
Phone: 4082544663
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.1/5

VBN Solar Solution

  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Skilled repairs

Website: http://vbnsolar.com/
Address: 140 Baytech Dr, San Jose, CA 95134
Phone: 2094394442

Methodology: How We Ranked the Best Solar Companies in Fremont

EcoWatch's solar experts analyzed each solar company in Fremont based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Fremont


Below are some the criteria we examined specifically for California solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Fremont

Although solar panels can help save you a good amount of money on energy bills over time, it's necessary to take into consideration the upfront costs. There are several factors you should consider when determining how much it will cost and how much you can save, such as:

  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 30% of your overall installation cost, your state or local government may offer additional tax exemptions, credits or rebates that will help you save even more. Aside from incentives, you can save an average of $33,000 over the first 20 years with your solar panels, too.
  • Where your home is: This influences how much sunlight your roof gets, which helps determine how many panels you need.
  • The make and model of solar panels you want: More high-tech panels have higher prices, so that will influence your budget for your solar project.
  • How much you spend on energy: The average household in Fremont shells out around $1,100 a year on home energy use alone, so you could end up with that much in savings.

Thanks to solar panels decreasing in cost as well as several solar incentives, they are a worthwhile investment for the majority of homeowners.

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Solar Incentives in Fremont

If you're considering making the switch to solar energy, a number of government incentives and solar rebates can greatly lower your project costs and speed up the return on your investment. Everyone can take advantage of the federal Solar Investment Tax Credit (ITC), which lets you claim 30% of your project costs when you file taxes, lowering the amount of taxes you owe that year. Additionally, there may be some local incentives that can save you some extra money too. You can find out about the incentives you can use in our article on solar incentives

Environmental Impact of Switching to Solar in Fremont

Many want to do what they can to help protect the environment, which for many is the main motivation to install solar panels. But you may be curious — how much exactly can you help the planet by going solar? The average person has a rather large carbon footprint. Between their car, which is responsible for over 10,000 pounds of carbon dioxide emissions every year, and powering their home, it can be overwhelming to think about what to do. Going solar is a simple thing you can do to help. Even though solar panel manufacturing emits carbon dioxide, the panels make up for it by significantly lowering the amount of CO2 you would have released if you still used traditional energy. In Fremont, you can reduce your carbon footprint by 50 pounds a year with solar panels. For people who are concerned about the environment, the upfront cost of solar is a small price to pay for reducing your carbon footprint.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch's Fremont, CA Solar Company Rankings FAQs

Which solar panel installer is the best in Fremont?

The best local solar company in Fremont is Clean Solar, with a rating of 4.09 stars.

Are solar panels really environmentally friendly?

Making solar panels needs to use chemicals and produces toxic waste that can be bad for the environment, which is the main drawback of solar panels.

How long does it take for solar to pay for itself?

The average payback period for solar panel installation is about 5.5 years, but the exact period is influenced by the cost of electricity where you are, incentives and net metering programs.

How often do solar panels need to be replaced?

Although the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is the amount of energy they produce will have decreased by about 0.8% each year since installing them. You can choose to replace them once you've had them for that long or you can continue to use them at a lower efficiency after that time.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.