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5 Best solar companies in Stanford, CA (2023 ranking)

UPDATED JANUARY 2023

There are plenty of solar companies out there – check out this updated ranking for the top rated solar installers in Stanford, CA based on shopper preferences. Compare customer ratings, company tiers, and genuine customer feedback to see which installer is the best fit for your solar project.

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The data on this page comes from real solar quotes to real solar shoppers on the EnergySage Marketplace. We give you access to transparent information so you can confidently make informed energy decisions. Learn more about how our Marketplace works and how we make money.

11 companies
1,993 customer reviews
4.5 average rating

Solar companies in Stanford, CA 2023

  • Benicia, CA
    Established 2008
    Elite+ Installer
    Since 2008, Solar Optimum continues to be the leader in supplying solar energy systems, back-up battery storage and roofing for homeowners and businesses in California, Nevada and Arizona. Our team is made up of professionals that aim to protect the environment with the latest technologies as well as offer immediate and long-term savings to the consumer.

    * THREE-Time Winner: 2022, 2021 and 2020 Panasonic National Installer of the Year
    * Since 2008, Solar Optimum has led the energy revolution acr…

    Elite+ Installer

    Screened & Verified

    Since 2008, Solar Optimum continues to be the leader in supplying solar energy systems, back-up battery storage and roofing for homeowners and businesses in California, Nevada and Arizona. Our team is made up of professionals that aim to protect the environment with the latest technologies as well as offer immediate and long-term savings to the consumer.

    * THREE-Time Winner: 2022, 2021 and 2020 Panasonic National Installer of the Year
    * Since 2008, Solar Optimum has led the energy revolution acr…
  • Livermore, CA
    Established 2012
    Elite+ Installer
    With 80 years of combined experience at American Array Solar and Roofing, we put our customers first! We service all of California with 5 locations across the state. We offer an industry leading 30 year warranty. As one of California's top rated Solar and Roofing companies we are partnered with world class solar and roofing manufacturers to bring you the latest, long lasting and high performance technology on the market.

    From residential, commercial to industrial projects, we do them all.

    Elite+ Installer

    Screened & Verified

    With 80 years of combined experience at American Array Solar and Roofing, we put our customers first! We service all of California with 5 locations across the state. We offer an industry leading 30 year warranty. As one of California's top rated Solar and Roofing companies we are partnered with world class solar and roofing manufacturers to bring you the latest, long lasting and high performance technology on the market.

    From residential, commercial to industrial projects, we do them all.
  • Menlo Park, CA
    Established 2017
    Elite Installer
    With an unmatched 60 DAY INSTALLATION GUARANTEE and 25 YEAR MONEY BACK PRODUCTION GUARANTEE it is clear why our customers have made us the fastest growing solar company in the U.S.
    Elite EnergySage badge

    Elite Installer

    Screened & Verified

    With an unmatched 60 DAY INSTALLATION GUARANTEE and 25 YEAR MONEY BACK PRODUCTION GUARANTEE it is clear why our customers have made us the fastest growing solar company in the U.S.
  • Petaluma, CA
    Established 2014
    Approved Installer
    With two decades of experience installing thousands of solar panel systems for both residential and commercial projects, our fully-licensed installers are some of the most qualified solar installers in California. We make the process quick, easy, and professional, helping you obtain a solar system you can count on.
    Our professional team simplifies the complex world of solar power. From full site analysis, to system engineering, permitting, installation, activation, monitoring, and maintenance of your so…
    Approved EnergySage badge

    Approved Installer

    Screened & Verified

    With two decades of experience installing thousands of solar panel systems for both residential and commercial projects, our fully-licensed installers are some of the most qualified solar installers in California. We make the process quick, easy, and professional, helping you obtain a solar system you can count on.
    Our professional team simplifies the complex world of solar power. From full site analysis, to system engineering, permitting, installation, activation, monitoring, and maintenance of your so…
  • San Jose, CA
    Established 1987
    Elite+ Installer
    NRG Clean Power is on a mission to change the way energy is produced, consumed and stored. We believe that energy production should be decentralized, deregulated, affordable and most importantly, renewable. Complete energy independence is our goal. Solar, The Smart Way ™.

    Dedicated project managers will guide you through the project that includes a lifetime warranty to protect your investment. This is solar, the smart way!
    *Fully licensed electricians (C-10 license Class)
    *A+ Rating by the Bet…

    Elite+ Installer

    Screened & Verified

    NRG Clean Power is on a mission to change the way energy is produced, consumed and stored. We believe that energy production should be decentralized, deregulated, affordable and most importantly, renewable. Complete energy independence is our goal. Solar, The Smart Way ™.

    Dedicated project managers will guide you through the project that includes a lifetime warranty to protect your investment. This is solar, the smart way!
    *Fully licensed electricians (C-10 license Class)
    *A+ Rating by the Bet…
  • San Francisco, CA
    Established 2013
    This installer is not accepting new customers at this time.

    Installer

    Screened & Verified

    This installer is not accepting new customers at this time.
  • Multi-state
    Established 2011
    Advanced Installer
    LA SOLAR GROUP and Its subsidiary companies are one of the highest-rated solar companies in California, Nevada and now in Texas.

    With over 200+ installations each month, most of our business comes directly from referrals of satisfied customers.

    We are an INC 5000 company as one of the fastest-growing businesses for 7 straight consecutive years. LA SOLAR GROUP and its subsidiaries are committed to designing the most cost-effective and productive solar solutions for your home. We take a conserv…
    Advanced EnergySage badge

    Advanced Installer

    Screened & Verified

    LA SOLAR GROUP and Its subsidiary companies are one of the highest-rated solar companies in California, Nevada and now in Texas.

    With over 200+ installations each month, most of our business comes directly from referrals of satisfied customers.

    We are an INC 5000 company as one of the fastest-growing businesses for 7 straight consecutive years. LA SOLAR GROUP and its subsidiaries are committed to designing the most cost-effective and productive solar solutions for your home. We take a conserv…
  • San Francisco, CA
    Established 2011
    Approved Installer
    SolarUnion is the only Diamond Certified Solar Company in the State of California that offers a 25-year performance guarantee on (i) parts, (ii) labor, (iii) roof attachments and (iv) power output.
    We are rated highest in quality on customer satisfaction, insurance coverage, license and business practices. We offer a premium solar experience to our customers.
    The SolarUnion Team includes in-house certified C46 and C10 solar electricians and carefully vetted installers with decades of experience in…
    Approved EnergySage badge

    Approved Installer

    Screened & Verified

    SolarUnion is the only Diamond Certified Solar Company in the State of California that offers a 25-year performance guarantee on (i) parts, (ii) labor, (iii) roof attachments and (iv) power output.
    We are rated highest in quality on customer satisfaction, insurance coverage, license and business practices. We offer a premium solar experience to our customers.
    The SolarUnion Team includes in-house certified C46 and C10 solar electricians and carefully vetted installers with decades of experience in…
  • San Jose, CA
    Established 2009
    Approved Installer
    Providing the most competitive SunPower Solar + Storage Solutions in California.
    Highest Solar Panel Efficiency in the entire industry.
    25-Year Product Warranty by SunPower.
    25-Year Performance Guarantee (92% in year 25) by SunPower.
    25-Year Labor Warranty by SunPower.
    Approved EnergySage badge

    Approved Installer

    Screened & Verified

    Providing the most competitive SunPower Solar + Storage Solutions in California.
    Highest Solar Panel Efficiency in the entire industry.
    25-Year Product Warranty by SunPower.
    25-Year Performance Guarantee (92% in year 25) by SunPower.
    25-Year Labor Warranty by SunPower.
  • Tracy, CA
    Established 2016
    Approved Installer
    Words are cheap. We've seen standard install practices, and we're not impressed. We go beyond the standard by implementing a 5-point quality check on all of our installations. We guarantee every project will follow this process, making each installation a cut above the rest. We've installed over 11,000 solar projects and saved our customers over $5MM on their energy bills. We're excited to help you start your solar journey and start saving.
    Approved EnergySage badge

    Approved Installer

    Screened & Verified

    Words are cheap. We've seen standard install practices, and we're not impressed. We go beyond the standard by implementing a 5-point quality check on all of our installations. We guarantee every project will follow this process, making each installation a cut above the rest. We've installed over 11,000 solar projects and saved our customers over $5MM on their energy bills. We're excited to help you start your solar journey and start saving.
  • Sacramento, CA
    Established 2018
    Approved Installer
    Sunelectric has the best warranty in the industry! We are back by SolarInsure the best Warranty Company in the World. Active Monitoring - Covers Parts and Labor - Transferable Ownership - Full security never get stuck with a bill!

    Sunelectric's Quality to its project and commitment to Service to our Customer is Divine!
    Approved EnergySage badge

    Approved Installer

    Screened & Verified

    Sunelectric has the best warranty in the industry! We are back by SolarInsure the best Warranty Company in the World. Active Monitoring - Covers Parts and Labor - Transferable Ownership - Full security never get stuck with a bill!

    Sunelectric's Quality to its project and commitment to Service to our Customer is Divine!

See the cost of solar in Stanford, CA

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How we determine the best solar companies in Stanford, CA

At EnergySage, we care about connecting solar shoppers to high-quality solar energy companies. As such, any solar installers we list above are active on the EnergySage Marketplace in Stanford, CA and are pre-screened by our team.

What does it mean to be “pre-screened”? We evaluate every solar panel company to ensure that they’ll provide quality service to EnergySage users. These high-quality installers are approved based on their years of experience, licensing and insurance, reputation, and certifications. When bringing new installers into the EnergySage Marketplace, here’s how we ensure our partners are the best of the best:

  • At least three years of experience installing solar
  • Licensed and insured for solar installations
  • NABCEP certified
  • Reputation for excellent customer service and quality solar installations
  • Installs high quality solar equipment

Our rating tiers

Choosing the right installer can be difficult, especially when you’re deciding between multiple top-notch companies on EnergySage. To make it easier, we created a unique rating system that evaluates our partners’ performance based on real data from our Marketplace.

Elite+ installers are the most experienced, chosen, and celebrated companies on the Marketplace, having provided exceptional service to a high volume of shoppers for at least a year.

Elite installers earn top ratings from customers, endorsements from vendors, and win customers more frequently than their peers.

Advanced installers are among the top half of companies on the Marketplace for responsiveness, reputation, results.

Approved installers passed our rigorous screening criteria for experience, licensing, and positive reviews.

How to pick the best solar installer

When you’ve already narrowed down your options to reputable installers and are trying to decide which quote to move forward with, here are three final considerations that distinguish the best from the rest:

workmanship warranties for solar panels

Workmanship warranties

What is covered and for how long?

In the unlikely event there’s an issue with your solar panel system, it’s important to know who to call if something goes wrong. There are multiple warranties that come with your solar energy system, from manufacturer warranties for different components to workmanship warranties from your installer.

The workmanship warranty is specific to the work the installer performs, and is typically somewhere between one and 10 years. Be sure to check with your installer to see what’s included in the warranty, if there are any exclusions, and if there’s any cost to you in the event they have to come out and check on or replace some equipment.

house with solar installers and solar panels

The use of sub-contractors

Which crew will install your system?

In some instances, solar installers will rely on subcontractors to perform some, or all, of the work included during your solar installation. Don’t let this put you off: it’s entirely standard procedure in the industry. What is alarming, though, is a lack of transparency from installers about who will install your system and why they use subcontractors.

When you’ve narrowed down your list of potential solar installers, be sure to ask who will install the system–their own crew or subcontractors–and, if they use subs, ask why they do, what portion of the install the subcontractors will complete, and what oversight the company you purchase your system from has over the subcontractors. At the end of the day, the most important question is who will stand behind the quality of your installation.

solar company reviews on a computer

Expertise

How does each installer tailor their system to your needs?

Beyond ensuring that your solar installer has all of the appropriate licenses and industry-specific certifications, it’s important to work with a solar installer who has experience custom designing systems to fit their customers’ needs.

When you’re comparing your options, the best installers will work with you to understand your needs, as well as how solar fits your overall energy plans. Make sure your solar installer provides a consultative, professional solar experience, and if you’re also purchasing a solar battery system, they have proven experience with those products too.

By doing the legwork for you, EnergySage makes it easy to find reputable solar installation companies in Stanford, CA. We’ve already vetted all of our installer partners, and keep a close watch over their performance to ensure their installations and customer satisfaction are up to the levels that you–and we–expect. Start receiving free quotes from reputable installers in your area by creating an account on the EnergySage Marketplace today.

As of February 2023, the average solar panel cost in Stanford, CA is $2.89/W. Given a solar panel system size of 5 kilowatts (kW), an average solar installation in Stanford, CA ranges in cost from $12,282 to $16,618, with the average gross price for solar in Stanford, CA coming in at $14,450. After accounting for the 30% federal solar tax credit and other state and local solar incentives, the net price you'll pay for solar can fall by thousands of dollars, and with options like a solar loan, solar lease, or power purchase agreement (PPA), you can find the right payment setup for your personal needs.

According to solar shoppers on the EnergySage Marketplace, the top five solar installers in Stanford, CA are:

There are 11 solar companies in Stanford, CA on the EnergySage Marketplace.
On average, solar shoppers in Stanford, CA save $75,553 over the course of 20 years that they would have paid to their utility company. Shoppers who connect with a solar provider in Stanford, CA on the EnergySage Marketplace have a solar payback period of 5.12 years - this means that after this period of time, cumulative electric bill savings pass the upfront cost of the solar power system.
According to a study by the National Renewable Energy Laboratory (NREL), solar quotes from national installers are about 10 percent higher, on average, compared to those provided by local installers. However, if you decide a national installer is the best choice for your home solar panel installation, here are some of the biggest companies to consider: SunPower, Sunrun, Tesla, Trinity Solar, ADT Solar (formerly Sunpro), and Momentum Solar.