15 Best Solar Companies in Alameda, CA (2025 Reviews)

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

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

Average Alameda homeowner saves $2,800/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

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 Alameda

As a homeowner or business owner in Alameda, you may be considering switching to solar energy and wondering about the best solar companies in your local area. Solar could be a fantastic choice since it has many benefits. Because solar panels produce their own energy, they can vastly bring down your electricity bill each month, if not fully eliminate it. In fact, you could be looking at about $33,000 of savings over 20 years.


If you’re planning on going solar, the first step you should take is to find the best solar companies in Alameda and compare quotes. That’s why we went ahead and put together a list of the best solar companies so you don’t have to.Continue reading to see our picks for the top solar companies in the city, or get connected with a certified solar company near you right away by clicking the button below.

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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 for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch Rankings for Solar Companies in Alameda

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

SunPower

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Consultation

Website: https://us.sunpower.com/
Address: 880 Harbour Way S Suite 600, Richmond, CA 94804
Phone: 5105400550
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunPower by The Solar Quote

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

Services Offered

  • Service icon Grid-Tied Solar System
  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Panel Installation

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

3.0/5

Solar Works

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Community Solar Projects

Website: http://www.solarworksca.com/
Address: 400c Morris St, Sebastopol, CA 95472
Phone: 7078298282
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Source Energy

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation

Website: https://sourcenergy.solar/
Address: 161 N Civic Dr #400, Walnut Creek, CA 94596
Phone: 9253196634
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Solar Bill Review

  • 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 Battery Storage
  • Service icon Consultation
  • Service icon Skilled Repairs
  • Service icon Panel Installation

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

5.0/5

Pac Solar Corporation

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://pacsolar.com/
Address: 118 Mitchell Blvd, San Rafael, CA 94903
Phone: 4152998989
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Kingdom Solar

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

Services Offered

  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance
  • Service icon System Decommissioning
  • Service icon Skilled Repairs
  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://www.kingdomsolar.com/
Address: 2388 Research Dr, Livermore, CA 94550
Phone: 9254818903
Outstanding Local Installer
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EcoWatch Rating

5.0/5

TN Electrical and Solar Services

  • Pros icon Free Quotes
  • 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 Battery Storage
  • Service icon Solar Panel Upgrades
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System
  • Service icon Cleaning and Maintenance

Website: http://www.tnsolars.com/
Address: 1150 Murphy Ave #240, San Jose, CA 95131
Phone: 4082293632
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Amy's Roofing and Solar

  • 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 Tesla Powerwall
  • Service icon Panel Installation
  • Service icon Solar Panel Upgrades
  • Service icon Battery Storage
  • Service icon Solar Carports
  • Service icon Skilled Repairs
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance

Website: https://www.amyrs.com/
Address: 320 Jewett Rd, Petaluma, CA 94952
Phone: 7079819801
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Bella Hem Solar, Inc.

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance

Website: http://www.bellahem.com/
Address: 7556 Windward Dr, Rohnert Park, CA 94928
Phone: 5106290790
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Taylor Energy Solar & Batteries

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

Services Offered

  • Service icon Battery Storage
  • Service icon Tesla Powerwall
  • Service icon Panel Installation

Website: https://www.taylor-energy.com/
Address: 612 Petaluma Ave, Sebastopol, CA 95472
Phone: 7076201367
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Got Watts?

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

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Permit Assistance
  • Service icon Skilled Repairs
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Solar Panel Upgrades

Website: https://www.gotwatts.com/
Address: 2045 Commerce Ave, Concord, CA 94520
Phone: 9254210411
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

United Solar Electric

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Battery Storage

Website: https://www.unitedsolarelectric.net/
Address: 4501 O'Hara Ave, Brentwood, CA 94513
Phone: 9256794665
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Infinium Solar, Inc.

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

Services Offered

  • Service icon Financing Assistance
  • Service icon System Decommissioning
  • Service icon Battery Storage
  • Service icon Solar Carports
  • Service icon Panel Installation

Website: https://www.infiniumsolar.com/
Address: 1190 Dell Ave ste o, Campbell, CA 95008
Phone: 4085838101
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Ambrose Solar

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

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Permit Assistance

Website: http://www.ambrosesolar.com/
Address: 820 Eubanks Dr Suite A, Vacaville, CA 95688
Phone: 7079998036

Methodology: How We Ranked the Best Solar Companies in Alameda

EcoWatch's solar experts analyzed each solar company in Alameda 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 Alameda


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 Alameda

We get that for lots of homeowners, the choice to invest in solar rests on installation costs.The cost and possible savings vary depending on a few important factors such as:

  • Your home's orientation toward the sun: This, and your roof configuration, affects affect how much energy your solar panels can generate.
  • The type and model of solar panels you’re planning on getting: Some cost more, so that will shape your budget for your solar project.
  • Incentives: Tax-paying citizens who install a solar system this year can save 0 of their overall solar costs by taking advantage of the federal solar investment tax credit. You can also save about $33,000 on your electricity bills over 20 years excluding incentives.
  • Your home's power bills: Due to fairly high monthly power bills in Alameda, you could save about $1,500 a year with solar.

Due to solar panels now being cheaper than ever as well as various solar incentives, they are a worthwhile investment for most homeowners.

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Solar Incentives in Alameda

One of the good things about installing a solar panel system is receiving federal and potentially state incentives.Everyone can take advantage of the federal Solar Investment Tax Credit (ITC), which will allow you to claim 0 of how much you paid for your solar installation on your tax return, lowering the amount of taxes you owe that year. Additionally, there may be some state and city incentives you can benefit from too. Take a look at our article on solar incentives to see what incentives are available to you.

Environmental Impact of Switching to Solar in Alameda

Switching to solar energy can have a beneficial effect on the environment.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Alameda, though. The average person has a substantial carbon footprint. Between their car, which produces over 10,000 pounds of carbon dioxide emissions each year, and powering their home, it can be overwhelming to think about what to do. Going solar is one of the easiest things you can do to help.Because solar panels don’t release greenhouse gas emissions into the atmosphere when producing electricity, they’re a good trade for nonrenewable energy sources. In fact, you could lower your carbon dioxide emissions by about 50 pounds each year. Since energy from the sun is abundant and generates electricity without a carbon footprint, installing solar panels is one easy step you can take to help preserve the planet.

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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 for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Alameda, CA Solar Company Rankings FAQs

What is the top solar panel installer in Alameda?

In Alameda, SunPower is the top local solar company. Our team of experts rates it 4.50 stars, so it's a solid choice if you're planning on installing solar panels on your house.

What are the best and worst things about solar power?

The biggest advantages of solar power are that it can lower or, in some cases, completely erase your electricity bills, improve your home’s value and lower your carbon footprint. The biggest disadvantages are that solar panels can be expensive to install, you may not save as much if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.

Are solar panels worth it?

Solar panels can be a great investment for many homeowners, but truthfully, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your electricity bills are already reasonably low, solar panels might not be for you.

How efficient are solar panels?

Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating of about 15 to 25%. If your panels are more efficient, you'll need fewer of them to meet your home's energy needs.

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.