See what a solar system costs installed in Oakland, sized from your power bill. Free, instant, no sign-up.
Updated · installer rankings recalculated
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| System | Installed cost |
|---|
Solar Mosaic LLC
4.4 · 106 reviews · Free quote
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CivicSolar, Inc
4.8 · 90 reviews · Free quote
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Sun Light & Power
4.7 · 35 reviews · Free quote
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An estimate, not a quote. Based on $2.14–$2.90 per watt installed in California and 1,677 kWh per kW a year in California. Installers confirm the final price after a roof check.
Ranked by TrustAnalytica from verified reviews · see the full Top 10 list →
Solar Mosaic LLC specializes in solar financing, offering higher approval rates and low dealer fees to help homeowners switch to solar power. They work with contractors to provide installation loans, though some customers report difficulties with contract terms, communication, and project completion. The team handles financing but installation experiences vary.
CivicSolar specializes in providing quality solar products with a focus on personalized service and fair pricing. Their team supports solar installers by helping select the right parts and materials, often going beyond typical hours to meet deadlines. Customers appreciate their knowledgeable account managers and straightforward ordering process, though some wish for more payment options.
Employee-owned and with over 45 years of experience, Sun Light & Power specializes in custom solar design, installation, and maintenance for residential and commercial clients. Their team includes NABCEP-certified designers who manage each project closely, and customers appreciate their professionalism and thorough communication, though some note occasional scheduling delays.
Focused on bringing affordable solar to low-income and underserved communities, GRID Alternatives offers no-cost solar installations along with job training and workshops. Customers appreciate their clear communication and the opportunity to learn through volunteering, though some projects may require upgrades beyond standard service areas.
Specializing in commercial solar LED lighting with over 20 years of manufacturing experience, SOLTECH LLC offers UL-certified solar-powered LED fixtures designed for various mounting needs. Their team provides quick delivery and responsive support, consistently praised for high-quality products and helpful technical consultation.
SolarGuru Energy, the largest solar energy company in Oakland and San Francisco Bay Area is SolarGuru Energy. Free estimates, Zero Money Down, 0.99% Financing, Free Payments For A Year. For decades of unwavering efforts in accelerating the adoption of renewable energy, our team was awarded the United States Environmental Protection Agency's lifetime achievement award. We have the expertise and… more...
SolarGuru Energy, the largest solar energy company in Oakland and San Francisco Bay Area is SolarGuru Energy. Free estimates, Zero Money Down, 0.99% Financing, Free Payments For A Year. For decades of unwavering efforts in accelerating the adoption of renewable energy, our team was awarded the United States Environmental Protection Agency's lifetime achievement award. We have the expertise and commitment to find the right solar solution for you. Powur Energy is a Public Benefit Corporation that was founded to make measurable positive contributions in society. We are honored to be able partner with them. Our company's mission is to help all parties prosper as we shift towards a more sustainable world.
SolarGuru Energy Berkeley installs environmentally-friendly energy solutions at the best available prices. Potential solar users are often told by large solar companies that installing solar panels on their roofs is too complicated or that renewable energy can only offset a portion of their electricity usage. These companies are often driven by quick, easy solutions to energy problems that do not… more...
SolarGuru Energy Berkeley installs environmentally-friendly energy solutions at the best available prices. Potential solar users are often told by large solar companies that installing solar panels on their roofs is too complicated or that renewable energy can only offset a portion of their electricity usage. These companies are often driven by quick, easy solutions to energy problems that do not allow for custom designs or craftsmanship. Each project is different because we offer a unique customer experience. Our energy solutions are tailored to your budget and specific needs. This will help you save the most on your electric bill. There is no one-size-fits all solar system. We can help!
Borrego was founded with a passion to solve the world's energy issues. Over the past 40+ years, Borrego has been designing, optimising, installing and managing large-scale solar & battery projects. Trust and transparency are the foundation of our time-tested business processes and long-lasting relationships. We are aiming to keep up with the industry's pace and have increased our size so that we… more...
Borrego was founded with a passion to solve the world's energy issues. Over the past 40+ years, Borrego has been designing, optimising, installing and managing large-scale solar & battery projects. Trust and transparency are the foundation of our time-tested business processes and long-lasting relationships. We are aiming to keep up with the industry's pace and have increased our size so that we can support our customers' growth in utility-scale projects. Borrego is a trusted national solar and energy storage company that has been around for over 40 years. It's known for being a leader in safety, integrity and quality and its deep staff knowledge. We have grown from our beginnings as a pioneer in solar energy and are now a major national company that focuses on utility scale. Our solid balance sheet has helped us to maintain a steady and sustainable growth rate. This is a sector known for having its ups, downs, and constant profitability.
Untrustworthy, predatory, unprofessional scammers, don't trust the reviews which are obviously put here by their employees. They have preyed on the elderly in West TX including my 80 year old parents who were duped into signing a lien that will exist long after they are no longer alive. Mosaic's web…
Terrible, frustrating, unprofessional, do not use. The worst company I have ever encountered was the solar company who connected me with Mosaic. They had the decency of going out of business. Mosaic now holds that space. This company (Mosaic) knowingly partnered with contractors who quickly locked c…
| # | Business | Rating | Reviews | Starting price | Phone | Website |
|---|---|---|---|---|---|---|
| 1 | Solar Mosaic LLC | 4.4 | 106 | $200 | (510) 746-8602 | Visit |
| 2 | CivicSolar, Inc | 4.8 | 90 | $150 | (800) 409-2257 | Visit |
| 3 | Sun Light & Power | 4.7 | 35 | $100 | (510) 851-9028 | Visit |
| 4 | GRID Alternatives | 4.8 | 23 | $100 | (510) 731-1310 | Visit |
| 5 | SOLTECH LLC | 5.0 | 10 | $100 | (510) 891-1056 | Visit |
| 6 | SolarGuru Energy | 3.7 | 3 | — | (833) 383-4878 | Visit |
| 7 | SolarGuru Energy - Berkeley Solar Sales, Installation & Roofing Company | 5.0 | 2 | — | (510) 298-0024 | Visit |
| 8 | Borrego (Oakland) | 4.0 | 2 | — | (888) 898-6273 | Visit |
This calculator sizes a solar system from your electricity use. Your monthly bill, divided by the average California electricity price, gives your yearly use; California's sunshine (1,677 kWh per kW of panels a year) then gives the system size that covers it, adjusted for roof direction and shade. The installed price is that size multiplied by the price per watt homeowners in California pay installers. Payback compares that price with what the panels save at California power prices, assuming prices rise 3% a year.
An estimate, not a quote. Roof size and pitch, shading, equipment, permits and the installer all change the final price; installers confirm it after a site visit. Sources: EnergySage state installed-cost data (2026), NREL PVWatts, U.S. Energy Information Administration residential prices (2026), state program pages.