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Top 8 Best Solar Companies In San Jose

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San Jose is situated in the heart of Silicon Valley and the city is committed to green initiatives and renewable energy.

As a result, the demand for solar energy solutions has grown exponentially in recent years. With abundant sunshine and a strong focus on sustainability, San Jose offers the perfect environment for harnessing solar power for homes and businesses alike.

With numerous solar companies in the area, selecting the best solar company in San Jose might seem overwhelming.

However, our comprehensive guide simplifies the process by highlighting the top solar companies in the region.

From innovative solar products to flexible financing options, these solar companies offer various services to cater to your unique energy needs.

Discover the best solar providers in San Jose and embark on your journey toward a greener, more sustainable future.

Best Solar Companies In San Jose


SunPower, founded in 1985, is a global solar energy company known for its high-efficiency solar panels and comprehensive solar solutions.

With a long-standing presence in San Jose, SunPower is a popular choice for residential and commercial solar installations.

SunPower’s patented Maxeon technology makes their panels highly efficient, durable, and reliable, ensuring long-term performance.

SunPower offers end-to-end solar solutions, from consultation and design to installation and maintenance.

SunPower provides financing options such as solar loans, leases, and power purchase agreements (PPAs) to accommodate a variety of budgets.


SolarCity, a subsidiary of Tesla, Inc., has been a prominent player in the solar industry since 2006.

Known for its innovation and advanced technology, SolarCity offers a range of solar products and services in San Jose.

Tesla Solar Roof is a unique product that combines solar panels and roofing materials to create an integrated solar system that looks like a traditional roof.

SolarCity’s Powerwall, a home battery system, stores solar energy for use during grid outages or low solar production.

SolarCity also customized solar installations to meet each customer’s unique needs and preferences.

SolarCity offers a 25-year performance guarantee on their solar panels, ensuring customer satisfaction and peace of mind.


Sunrun, founded in 2007, is the largest residential solar provider in the United States.

With a strong presence in San Jose, Sunrun offers various solar services to help homeowners go green.

Brightbox battery storage is the home battery solution provided by Sunrun, which allows customers to store solar energy and use it during power outages or when electricity rates are high.

Sunrun designs solar systems to fit customers’ unique energy needs and budgets.

Sunrun offers solar leases, PPAs, loans, and the option to purchase solar panels outright. Sunrun provides a comprehensive 25-year warranty on their solar panels, ensuring a long-lasting and efficient system.

Semper Solaris

Semper Solaris, founded by a U.S. Marine Corps veteran in 2012, is a San Jose solar company that prides itself on its commitment to quality and customer satisfaction.

Semper Solaris delivers exceptional solar solutions by combining military values with solar expertise.

Semper Solaris uses high-quality, American-made solar panels, supporting local manufacturing and ensuring superior performance.

In addition to solar installations, Semper Solaris offers roofing services, providing an integrated solution for customers seeking solar and roofing upgrades.

Semper Solar Solaris honors military veterans with exclusive discounts on solar installations and roofing services.

Semper Solaris holds multiple industry certifications, including NABCEP (North American Board of Certified Energy Practitioners), demonstrating their commitment to upholding the highest standards in solar energy.

Clean Solar

Founded in 2007, Clean Solar is a local San Jose solar company prioritizing customer satisfaction and quality installations.

Clean Solar offers personalized service and exceptional solar products as a highly-rated solar provider.

Clean Solar designs and installs solar systems tailored to customers’ unique energy needs and preferences.

In addition to solar installations, Clean Solar provides energy efficiency assessments and upgrades, ensuring customers maximize their energy savings.

Clean Solar offers upfront, transparent pricing with no hidden fees, making it easy for customers to understand the cost of their solar investment. Clean Solar is committed to giving back to the local community and supporting various charitable organizations and local initiatives.

Solar Harmonics

Solar Harmonics, founded in 2008, is a San Jose-based solar provider that aims to make solar energy simple, affordable, and accessible for homeowners and businesses.

With a focus on customer service and high-quality solar installations, Solar Harmonics offers various features that set them apart.

Solar Harmonics is dedicated to providing customers with the information they need to make informed decisions without high-pressure sales tactics.

The company offers a 25-year warranty on solar panels and inverters, ensuring long-term performance and customer satisfaction.

Solar Harmonics designs solar systems to match each customer’s energy needs, preferences, and budget, maximizing efficiency and savings.

The company prioritizes educating customers on the benefits of solar energy, empowering them to make the best decisions for their energy needs.

Horizon Solar Power

Horizon Solar Power, a division of Sungevity, has been serving the San Jose since 2008.

As a well-established local solar provider, Horizon Solar Power offers reliable solar solutions for residential and commercial customers.

Horizon Solar Power provides complimentary solar consultations, helping customers understand their energy needs and potential solar savings.

With a streamlined installation process, Horizon Solar Power ensures a hassle-free and timely solar experience for its customers.

The company offers competitive pricing on solar installations, making it easier for customers to go green without breaking the bank.

Horizon Solar Power uses high-quality solar panels and inverters to ensure the long-lasting performance of its solar systems.

Petersen Dean Roofing & Solar

Petersen Dean, established in 1984, is a San Jose solar and roofing company that provides comprehensive home improvement solutions.

As a licensed solar and roofing contractor, Petersen Dean offers various services catering to various customer needs.

Petersen Dean designs and installs high-quality solar systems for residential and commercial customers, utilizing top-tier solar panels and inverters.

In addition to solar, the company offers various roofing services, including new roof installations, roof repairs, and roof replacements.

Petersen Dean provides energy storage solutions, such as battery backup systems, to help customers store solar energy for later use or during power outages.