15 Best Solar Companies in Cupertino, CA (2023 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Cupertino based on:
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Customer review scores
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Service area for Cupertino, CA
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Company policies and services offered
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Accreditations and certifications
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Average Cupertino homeowner saves $2,577/year with solar panels
Updated September 15, 2023
Why you can trust EcoWatch
Best Solar Companies in Cupertino
When choosing between the best solar panel companies, Cupertino homeowners have more options to choose from than ever before, which can be too much to get a handle on, but we're here to make switching to solar power that much easier. Solar panels aren't just good for the environment — your bank account will be better off too. With solar power, you can save an average of $31,000 over 20 years, and this doesn't even include incentives.
The cost of installing solar panels can vary greatly based on your home's setup and your overall energy requirements. We recommend shopping around for multiple quotes and comparing them to see which is the best installer for your home. To receive free, no-pressure quotes from vetted solar installers in Cupertino, click the link below.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
EcoWatch Rankings for Solar Companies in Cupertino

SunPower Corporation
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Informative Resources
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Free Quotes
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Clear Pricing Policy
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Reliable Customer Support
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Limited information available on website
Services Offered
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Home installations
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Tailored solutions
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Expert panel installation
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Business installations
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Integrated roofing
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Energy storage solutions

High Definition Solar
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Tailored solutions
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Integrated roofing
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Home installations
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Expert panel installation

SunPower by The Solar Quote
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Prompt Service Delivery
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Reliable Customer Support
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Energy storage solutions
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Business installations
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Expert panel installation
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Home installations
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Tailored solutions
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Integrated roofing

Home Networks, Electric & Solar, Inc. (CA)
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Tailored solutions
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Home installations
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Energy storage solutions

TN Electrical and Solar Services
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Clear Pricing Policy
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Reliable Customer Support
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Informative Resources
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Free Quotes
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Limited information available on website
Services Offered
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Expert panel installation
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Tailored solutions
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Energy storage solutions
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Home installations

Silicon Valley Capital Solar Panel Co
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Clear Pricing Policy
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Reliable Customer Support
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Free Quotes
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Limited information available on website
Services Offered
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Business installations
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Skilled repairs
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Integrated roofing
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Expert panel installation
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Home installations
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Tailored solutions

California Glass and Solar
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Informative Resources
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Clear Pricing Policy
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Free Quotes
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Reliable Customer Support
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Limited information available on website
Services Offered
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Business installations
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Tailored solutions
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Home installations

SF Green Construction
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Clear Pricing Policy
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Free Quotes
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Reliable Customer Support
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Informative Resources
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Limited information available on website
Services Offered
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Tailored solutions
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Skilled repairs
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Integrated roofing
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Energy storage solutions
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Business installations
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Home installations
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Expert panel installation

Skyfox Solar
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Clear Pricing Policy
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Informative Resources
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Free Quotes
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Limited information available on website
Services Offered
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Integrated roofing
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Tailored solutions
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Home installations
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Expert panel installation

Cobalt Power Systems Inc.
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Free Quotes
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Prompt Service Delivery
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Clear Pricing Policy
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Informative Resources
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Reliable Customer Support
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Limited information available on website
Services Offered
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Expert panel installation
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Energy storage solutions
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Integrated roofing
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Tailored solutions
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Home installations
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Business installations

Loop Solar Systems
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Reliable Customer Support
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Free Quotes
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Clear Pricing Policy
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Informative Resources
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Limited information available on website
Services Offered
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Expert panel installation
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Tailored solutions
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Business installations
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Home installations

SunWork Renewable Energy Projects
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Prompt Service Delivery
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Reliable Customer Support
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Limited information available on website
Services Offered
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Integrated roofing
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Energy storage solutions
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Tailored solutions
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Home installations
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Expert panel installation

Green Leaf Solar & Electric
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Clear Pricing Policy
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Family-Operated Business
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Limited information available on website
Services Offered
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Integrated roofing
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Tailored solutions
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Home installations
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Business installations
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Expert panel installation
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Energy storage solutions
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Skilled repairs

Greentech Renewables San Jose
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Informative Resources
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Free Quotes
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Clear Pricing Policy
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Limited information available on website
Services Offered
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End-to-end services
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Business installations
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Tailored solutions
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Home installations
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Skilled repairs

Shadowfax Roofing and Solar Company
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Reliable Customer Support
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Clear Pricing Policy
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Free Quotes
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Limited information available on website
Services Offered
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Tailored solutions
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Skilled repairs
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Business installations
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Integrated roofing
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Home installations
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Expert panel installation
Methodology: How We Ranked the Best Solar Companies in Cupertino
EcoWatch's solar experts analyzed each solar company in Cupertino 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 Cupertino
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 Cupertino
Solar panels run off a free energy source — the sun — but before you can take advantage of this you will need to pay to install your system. Some key things that impact how much it will cost and how much you could save include:
- Your household's power bills: Based on the high monthly electricity bills in Cupertino, you could save about $960 a year with solar.
- Incentives: The federal solar investment tax credit currently allows you to decrease your taxes by 30% of the project cost. Your state and city may also have various incentives that you can use. Plus, you can save about $31,000 over 20 years on your utility bills, not including incentives.
- Your income and budget: This affects what kind of solar panels you can buy.
- The amount of sunlight your area gets: Because of Cupertino's very high amount of average daily sunlight, you should be able to save a lot on your electricity bills.
There are several wonderful benefits of solar even with the initial cost of installation. It can help the planet and your bank account. In addition, it can boost the value of your home, resulting in even more benefits if you choose to sell your home later.
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Solar Incentives in Cupertino
Because solar power is a cleaner source of energy than burning fossil fuels, there are a number of government incentives in place to encourage its adoption. In addition to the federal solar investment tax credit, there are also some local incentives, which in almost all cases, stack with the federal incentive, so you can save even more. For detailed information about incentives that apply to you, visit our article on solar incentives.
Environmental Impact of Switching to Solar in Cupertino
If you're planning on adding solar panels to your home, one of the main reasons why may be to lower your carbon footprint. Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Cupertino, though. The amount of energy you use is a significant factor to think about. The more electricity your household consumes, the larger your impact when you make the switch to solar power. When you go solar, your carbon dioxide emissions can be lowered by about 50 pounds each year. For those who are concerned about the environment, the upfront cost of solar is a small price to pay for reducing your carbon footprint.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
EcoWatch's Cupertino, CA Solar Company Rankings FAQs
Which solar installation company is the best in Cupertino?
The best local solar company in Cupertino is Clean Solar, with a rating of 4.09 stars.
What are a few of the pros and cons of adopting solar power?
The main advantages of solar power are that it can reduce or, in some cases, completely cut your electricity bills, improve your home's value and bring down your carbon footprint. The main disadvantages are that solar panels can be pricey to install, you may not save a lot if you don't use a lot of electricity and it doesn't work for all roof types and locations.
Is it worth installing solar panels on my house?
Solar panels need a significant upfront investment that costs over ten thousand dollars, but whether or not solar panels are worth it depends on a collection of factors like how much you pay for electricity and how much direct sunlight your roof gets.
What are the different kinds of solar panels?
The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also cost more. Polycrystalline panels cost less but also less efficient than monocrystalline. Thin-film solar panels are flexible, so they can be used where the other kinds can't, like on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, roof layout and how much efficiency you're looking for.
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.