
- Max. panel efficiency
- Varies
- Panel warranty
- 30 years
- Payment options
- Cash, loan
- Year founded
- 2010
The ConsumerAffairs Research Team compared popular solar companies on ratings and reviews, equipment options, warranties, availability and other factors to select the top picks for this guide. Our picks may be Authorized Partners that compensate us — this does not affect our evaluations but may impact the order in which companies appear. Read the full methodology for all the details on how we make solar company recommendations.
Company | Customer rating | Our pick for | Pro install | Max. panel efficiency | Panel warranty | NABCEP certified | Payment options | Year founded | |
---|---|---|---|---|---|---|---|---|---|
![]() | 4.0
53 reviews
53 reviews
| Top overall | Varies | 30 years | Cash, loan | 2010 | Learn more | ||
![]() | 4.2
3,258 reviews
3,258 reviews
| Solar leases | 22% | Varies | Cash, loan, lease | 2007 | Get Started | ||
![]() | 5.0
View profile
View profile
| Local experience | Varies | 25 years | Cash, loan, lease | 1976 | Learn more |
Solar can be a big investment. Our goal is to highlight companies that are best equipped to meet most Fremontians’ energy needs.
The ConsumerAffairs Research Team took a data-driven approach, informed by expert editors and considering the Mediterranean-type climate, to choose the best solar companies in Fremont, California, based on the following key features and respective weightings:
» MORE: Full methodology
Jump into our guides and start learning
ConsumerAffairs has heard from thousands of Californians who have already gone through the solar panel installation process. Here’s what Fremont residents should look out for when choosing a solar panel installation company. We’ll also touch on overall costs and ways to save with government incentives.
A typical residential solar panel installation costs $15,129 in Fremont. However, you can finance or lease with minimal upfront costs.
Jump to insightOn average, Fremont homeowners with solar panels avoid $57,142 in total utility costs over 25 years.
Jump to insightSolar scammers in Fremont may falsely claim to be affiliated with an Alameda County or California government agency.
Jump to insightA typical solar panel installation costs anywhere from $8,645 to $24,700 in California. Prices in Fremont are comparable, ranging from $8,610 to $24,600.
This doesn’t include an energy storage battery, which sometimes costs as much as the panels: $7,000 to $18,000. A battery lets you store excess energy generated during the day and use it when your panels aren’t producing. It’s worth considering if California’s net metering rates continue to decline or if your area gets frequent blackouts.
System size is the other major solar cost factor. The average Fremont household needs a system with a capacity of 6.15 kW (kilowatt) to fully offset their electricity costs. Depending on how much energy you and your family use, you might need a smaller or larger one.
Average total solar installation costs by system size in Fremont
5 kW | 6 kW | 7 kW | 8 kW | 9 kW | 10 kW | |
---|---|---|---|---|---|---|
Before federal tax credit | $12,300 | $14,760 | $17,220 | $19,680 | $22,140 | $24,600 |
After federal tax credit | $8,610 | $10,332 | $12,054 | $13,776 | $15,498 | $17,220 |
Getting solar panels is like buying a car. Most people pay cash, finance or lease. Similar to leasing, a power purchase agreement (PPA) lets you get the benefits of solar without actually owning the equipment.
» SOLAR PANELS: Buy vs. lease
Solar panels are generally worth it in California if you like the idea of lowering your monthly utility bills and reducing your carbon footprint. For Gandhi in Fremont, solar energy is worth it to help lower reliance on traditional electricity and reduce their environmental impact. “PG&E electric prices were pretty high compared to what we have with solar energy,” he told us.
Homeowners with solar panels typically save $20,000 to $90,000 over 25 years.
Nearby, Robert in San Jose saw his PG&E electric bill go from a couple hundred dollars down to zero. He told us he is financing the system, and the loan payment “is about average what we'd be giving to PG&E but the difference is that we're paying for something that's gonna stay in the home. Once that's paid off, it'll start paying for itself.”
The main drawback is the high upfront cost of purchasing and installing the panels and equipment. Assuming an upfront purchase, it takes about 3.9 years to break even (when your savings with solar panels make up for the cost). On average, Fremont homeowners with solar panels can avoid $57,142 in total utility costs over 25 years.
» STILL NOT SURE? Solar energy pros and cons
Potential roof problems
As a rule of thumb, if your roof is more than 10 years old, consider fixing it before going solar. Installing solar panels on an old roof might mean you have to remove the panels, replace your roof and then reinstall the panels. This is an expensive and frustrating process.
» SHOULD YOU: Replace your roof before going solar?
In our experience, the best solar companies in California have a few things in common: lots of experience, reliable equipment and transparent contracts. Here are some hiring tips.
» TIPS: Get the best solar quotes
Going solar in Alameda County / California
In California, net metering lets homeowners with solar panels send excess energy into the grid in exchange for credits on their utility bills. However, recent policy changes mean lower compensation rates from Pacific Gas & Electric (PG&E). Consequently, adding a battery storage system to capture excess energy for use during peak hours can make solar more financially attractive.
» BEST STATES FOR SOLAR: California ranked fifth in 2024
A relatively slanted roof with plenty of unshaded space is best. The worst place to install would be on north-facing roofs, especially if those roofs have a high pitch (very steep). Here are a couple of other questions to ask yourself:
The federal solar investment tax credit (ITC) is a huge incentive for most homeowners going solar. It reduces your federal tax liability by 30% of how much it costs to install solar panels.
For example, if you spend $10,000 installing a solar panel system, the ITC is worth $3,000. If you owe $5,000 in taxes, the $3,000 credit reduces what you owe to $2,000.
Any unused portion rolls over to the next tax year. However, it’s possible to get a refund check if the ITC credit reduces your taxes to the point where you overpaid during the year.
Installation times depend on a range of factors, especially seasonality and supply chain issues. The actual installation might take only a day, but it takes time to design, plan and activate the system. One Fresno resident said it took several months. They began the process in October and the installation happened in mid-April.
Residents can take advantage of statewide solar incentives in California, including Self-Generation Incentive Program (SGIP) rebates for homeowners who install battery storage systems with their solar panels. Check with East Bay Community Energy (EBCE), which serves Alameda County, for potential solar incentives or renewable energy programs.
Additionally, the California Energy Commission (CEC) offers various incentives for solar water heating systems and energy efficiency upgrades, which can be combined with solar installations to maximize overall savings.
» GREENEST STATES: California ranked 17th in 2024
California’s Solar Rights Act prevents homeowners associations (HOAs) from restricting residential solar panel installations. HOAs can, however, impose minor restrictions as long as they don’t reduce the system’s efficiency.
Monocrystalline and polycrystalline are the most common types of solar panels used in residential installations. In general, monocrystalline panels are considered the best bang for your buck. Cheaper solar panels are typically polycrystalline. The key difference is in materials and efficiency: Monocrystalline panels use pure, single silicon crystals, while polycrystalline panels are made from melted silicon fragments, resulting in different efficiency levels.
Solar panel efficiency is a measure of how well a panel makes electricity. Standard efficiency rates range from 19% to 23%, which means 19% to 23% of the sunlight that hits the panels gets converted into electricity. The more efficient the solar panels you buy are, the fewer panels you need. While more efficient panels cost a little more, you save by buying fewer panels.
The ConsumerAffairs Research Team used a research-backed, data-driven approach, which was informed by our expert editors, to choose the best solar companies. We prefer to recommend those with a longer time in business and a solid track record of reliability in Fremont, California. For this guide, we objectively weighted several key features to get our final rankings:
Reviews, ratings and testimonials: 40%
We analyzed solar company reviews by verified solar customers to gauge real-world satisfaction. Companies with generally positive feedback on our site scored highest in this aspect. Those with the most 4- and 5-star reviews by verified Fremont customers were given preference.
Warranties: 20%
A long warranty is important — it shows that a company stands behind its products and services. We compared companies on both equipment and craftsmanship warranty terms. All of our top picks for professional installation have warranties or production guarantees of at least 10 to 25 years.
Equipment selection: 20%
We evaluated each company’s selection of solar panels, storage batteries and inverters. Those with proprietary technology or a wide equipment selection from trusted brands ranked highest.
Financing and payment options: 20%
We gave preference to companies that offer multiple payment and financing options for transparent terms and conditions.
ConsumerAffairs Research Team regularly evaluates customer reviews, company information and industry trends to update our top picks:
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ConsumerAffairs writers primarily rely on government data, industry experts and original research from reputable publications to inform their work. Specific sources for this article include:
Company | Customer rating | About | Learn More |
---|---|---|---|
![]() | 4.2
3,258 reviews
| Sunrun, in business for 18 years, serves customers in 20 states. It offers residential solar system financing options, including purchase and lease. Consultants customize systems to match each household’s unique energy needs. | Get Started |
![]() | 4.0
53 reviews
| Solar panel manufacturing and installation services. Proprietary anti-soiling, self-cooling technology. Battery backup and electric vehicle charging station solutions. 30-year panel warranty. Serves the Bay Area. | Read reviews |
![]() | 5.0
View profile
| Tailored solar solutions for residential, commercial and nonprofit usage. Uses NABCEP-certified installers. Extensive financing options. 24/7 customer service chat. Only available in Northern California. Long repayment terms. | Read reviews |
![]() | No reviews | Residential and commercial solar energy system installation, EV charging, roofing, battery backup and storage for parts of California, Colorado and North Carolina. 25-year parts and labor warranties. Free quotes available. | |
![]() | No reviews | Roofing and solar in the Bay Area since 1996. Offers financing with 10-year terms. Sells Sunpower, SPAN, GAF, IB and Enphase products. Licensed as both a C10 electrical and C39 roofing contractor. | |
![]() | No reviews | Specializes in commercial and residential solar installation. 25-year manufacturer's warranties, 10-year warranties for commercial PV projects and 15-year warranties for residential PV projects. | |
![]() | No reviews | Residential and commercial solar installations. Serves 54 cities across California. Installations include 25-year workmanship warranties. Some customers eligible for free, one-time roof replacement. | |
![]() | No reviews | Omaha-based solar installer serving parts of Iowa and Nebraska. Provides residential, commercial, agricultural and municipal solar energy system installation services. Also offers solar repair services. | |
![]() | No reviews | Commercial and residential solar installation plus radiant heating, geothermal units, HVAC, maintenance and indoor air quality improvements across California’s Bay Area. System components from Mitsubishi Electric. | |
![]() | No reviews | Offers full-service solar installations that include system design, engineering, permitting, installation and off-site monitoring in parts of Northern California. Routine solar cleaning and maintenance services available. | |
![]() | No reviews | Specializes in grid-tied residential and commercial solar solutions. Offers installations and products from brands like Tesla and SunPower. Covers several cities in California, including San Jose and San Francisco. | |
![]() | No reviews | A residential, commercial and community solar installer that serves parts of California and New York State. System warranties include 25 years on power production, parts and labor. Offers financing, including PPAs. |