Best Solar Companies in Modesto, CA

We compared 14 brands and chose the top solar energy companies

    • Top overall
      Sunrun
      4.2(3,258)
    • Innovative tech
      Soleeva
      4.0(53)
    • Good value
      Project Solar
      4.7(78)

    Best Solar Companies in Modesto, CA

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    Fact-checked by: Jon Bortin

    Our top 3 solar company picks for Modesto

    1. Our pick for best overall: Sunrun
    2. Our pick for innovative tech: Soleeva
    3. Our pick for good value: Project Solar

    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.

    The best solar companies in Modesto

    Solar can be a big investment. Our goal is to highlight companies best equipped to meet most Modestans’ energy needs.

    2025 Buyers Choice Award Winner
    Sunrun
    Max. panel efficiency
    22%
    Panel warranty
    Varies
    Payment options
    Cash, loan, lease
    Year founded
    2007

    We’ve talked to more than 2,000 Sunrun customers. Over a recent two-year period, 77% were satisfied with their installations and 73% were satisfied with the technology. Many tell us about significant savings on electric bills and would highly recommend the company to others.

    • “Sunrun was professional. They came out when they said they would. I didn't have to be at the house when they did the installation. I just gave them access to the garage. They were able to get everything done. Since they installed the panels, it cut my bill way down in half during the summer time. And in the winter time I pay 25 bucks. In the summer, it's hot so we cranked on the air conditioning even lower, but the bill is still reasonable compared to what it used to be.” — Phillip in Modesto

    Make sure you read the fine print carefully. Some customers have said they are not satisfied with the contract and terms.

    Sunrun specializes in residential solar systems with battery storage. Installers use monocrystalline panels from reputable manufacturers like LG.

    • Services: Sunrun designs and installs customized solar panel systems for homes and businesses. Technicians provide ongoing maintenance and monitoring to ensure optimal performance.
    • Warranty information: Sunrun provides a 10-year warranty on workmanship and equipment, roof leak protection and a 25-year performance guarantee.
    • Payment options: You can pay for your system upfront or take out a loan, but Sunrun leasing plans really set it apart. With leases, there’s no initial charge for panels, equipment, installation or permits. Sunrun owns the system, and you pay a fixed monthly fee to use it. Contracts typically last 25 years and include free repairs.

    Pros

    • Reliable systems
    • Flexible payment options
    • Comprehensive warranties
    • Daily system monitoring
    • Long-term savings

    Cons

    • Some customer service complaints
    • Occasional installation delays
    • Occasional billing issues
    1x Award Winner
    Selected for having one of the highest satisfaction rates for Best Customer Service
    Our pick for innovative tech
    Soleeva
    Max. panel efficiency
    Varies
    Panel warranty
    30 years
    Payment options
    Cash, loan
    Year founded
    2010

    Soleeva stands out for having great reviews. We also like that its solar panels come with a special coating that makes them last longer against wear and tear, which is particularly helpful in the Bay Area.

    • “Their technology is US-made, plus their price is reasonable. They also take the stand behind the product they sell. They answer every time and they call us back. If there's any issue, they address it well. The installation went very smoothly. Everything was okay. There were one or two tiles that had been broken when they installed it but they fixed it before they left. I already got a little higher than what they recommended me, but my bill is zero, and there's nothing I'm paying other than a gas bill.” — Sukhdeep in Stockton

    Installation is generally smooth, although some customers have reported broken tiles or difficulty with the wireless connection.

    Soleeva was founded by a mechanical engineer and a manufacturing finance expert in the San Francisco Bay Area. The company specializes in residential, commercial and farming solar panel projects.

    • Services: Reps coordinate solar design, engineering and construction. The company also offers ongoing maintenance services.
    • Warranty information: Projects come with a 30-year solar panel warranty and a 25-year production warranty.
    • Payment options: Soleeva offers credit-based and non-credit-based financing options.

    Pros

    • 30-year panel warranty
    • Proprietary technology
    • Zero-down financing
    • Lots of local experience

    Cons

    • Some installation delays
    • Some customer service complaints
    Our pick for good value
    Project Solar
    Max. panel efficiency
    20.9%
    Panel warranty
    25 years
    Payment options
    Cash, loan
    Year founded
    2016

    Project Solar reps focus on simple, streamlined installations. The no-sales-gimmicks approach appeals to more budget-conscious clients who want either professional services or do-it-yourself options. We also appreciate the price transparency. Full-service installations start at $1.61 per watt. DIY projects are cheaper, starting at $1.26 per watt.

    • “Project Solar was simple and cost-efficient. For main panel upgrades, the help and permissions were quick, and the intermediaries made it straightforward. Although some steps required patience, it seemed like a natural part of the process. The customer service was excellent. They addressed concerns about safety promptly, even adjusting their work to accommodate our young children. It's commendable when a company remains dedicated even after closing a deal.” — Somya in Livermore

    The installation process is generally smooth and professional, but we have heard about some delays due to material shortages or supply chain issues.

    Project Solar specializes in professional and DIY solar panel installations. Systems incorporate equipment from reputable brands like Qcells, Canadian Solar, Jinko and Enphase.

    • Services: Reps can handle the necessary paperwork, engineering plans and permit submissions for the installation. You can get a free online quote and explore sizing options for their homes.
    • Warranty information: There is a 25-year manufacturer’s warranty and a 10-year workmanship warranty. Both are limited and have exclusions like weather damage or misuse.
    • Payment options: Project Solar partners with a few lenders to offer financing solutions for professional solar installations. DIY customers can pay cash or finance through a third-party lender.

    Pros

    • Easy sign-up process
    • High-quality equipment
    • Transparent pricing
    • Long-term savings

    Cons

    • Occasional miscommunications
    • Subcontracted installers
    • No in-house financing

    How we chose the best solar companies in Modesto

    The ConsumerAffairs Research Team took a data-driven approach, informed by expert editors and considering the hot-summer Mediterranean-type climate, to choose the best solar companies in Modesto, California, based on the following key features and respective weightings:

    • Reviews, ratings and testimonials: 40%
    • Warranty terms: 20%
    • Equipment selection: 20%
    • Financing and payment options: 20%

    » MORE: Full methodology

    Solar Companies in Modesto Buyers Guide

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      Modesto solar panel buyers guide

      ConsumerAffairs has heard from thousands of Californians who have already gone through the solar panel installation process. Here’s what Modesto 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.

      Key insights

      A typical residential solar panel installation costs $20,084 in Modesto.

      Jump to insight

      Solar loans, leases and other programs make it easy to go solar with minimal upfront costs.

      Jump to insight

      Solar scammers in Modesto may falsely claim to be affiliated with a Stanislaus County or California government agency.

      Jump to insight

      Solar panel costs in Modesto

      A typical solar panel installation costs anywhere from $8,645 to $24,700 in California. Prices in Modesto are comparable, ranging from $8,820 to $25,200.

      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 Modesto household needs a system with a capacity of 7.97 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 Modesto

      How can I pay for solar panels?

      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 loans work like any other type of loan. They have relatively low fixed interest rates. Once you pay it off, you own your system outright.
      • Solar leases are a good option if you have limited savings and don’t want to take on debt. A potential downside to leasing is that you won’t be eligible for the federal solar tax credit.
      • Free solar panels: The Disadvantaged Communities Single-family Solar Homes (DAC-SASH) program, run by GRID Alternatives, offers no-cost rooftop solar installations for income-qualified homeowners in disadvantaged communities. Find out if you live in an eligible community using this map from the California Environmental Protection Agency.

      » SOLAR PANELS: Buy vs. lease

      Is solar worth it in Modesto?

      Solar panels are generally worth it in California if you like the idea of lowering your monthly utility bills. In fact, it’s one of the best states for going solar. The average Modesto homeowner with solar panels can avoid $49,310 in total utility costs over 25 years.

      Homeowners with solar panels typically save $20,000 to $90,000 over 25 years.

      For a lot of people, 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).

      The environmental impact of a single homeowner installing solar panels may be relatively small, but when enough people in a city like Modesto go solar, cumulative reduction in air pollution can be significant.

      However, the area is prone to earthquakes — make sure your solar installer uses seismic-resistant mounting and anchoring techniques to protect your system from potential damage.

      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 again. This is an expensive and frustrating process.

      » SHOULD YOU: Replace your roof before going solar?

      How to find a reputable solar company in Modesto

      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.

      • Check certifications: California requires solar contractors to hold a C-46 licensing classification, which you can check through the Contractors State License Board. We also recommend choosing an installer certified through the North American Board of Certified Energy Practitioners (NABCEP).
      • Read reviews: Avoid companies with recurring complaints about misleading sales tactics, equipment failures, billing issues and lack of communication.
      • Ask questions: Do you need a solar storage battery, electric vehicle (EV) charger or critter guards? How does this affect overall pricing? What if your system needs maintenance? If you don’t understand something about the payment terms, warranty or ongoing services, ask for clarification.

      » TIPS: Get the best solar quotes

      Modesto solar FAQ

      How does the federal solar tax credit work?

      The federal solar investment tax credit (ITC) is a significant 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.

      Don’t get confused: The ITC is a credit, meaning it directly decreases the amount of taxes you owe. This is different from a deduction, which lowers your taxable income. 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.

      Are there any other solar incentives in Modesto?

      Residents can also 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.

      • Modesto Irrigation District: While Modesto Irrigation District (MID) doesn't offer direct solar rebates, it has incentives for energy-efficient home improvements that can complement solar investments.
      • California Energy Commission: The California Energy Commission (CEC) offers various incentives and rebates, including incentives for solar water heating systems and energy efficiency upgrades, which can be combined with solar installations to maximize overall savings, similar to MID programs.
      • Net metering: In California, net metering lets homeowners with solar panels send excess energy into the grid in exchange for credits on their utility bills. These credits help offset future energy costs, reducing overall electricity expenses and making solar energy more affordable. However, recent changes (NEM 3.0) have reduced the value of credits.

      » GREENEST STATES: California ranked 17th in 2024

      Will solar panels increase my property taxes?

      No. Under California law, solar installations are exempt from property tax reassessments, meaning the value added to your home by solar panels won’t increase your property taxes.

      What are the different types of solar panels?

      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.

      Is my house a good candidate for solar?

      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:

      • How much sunlight do I get? Modesto gets a good amount of sunlight. The state averages 5 to 7.5 peak sun hours every day. However, if you have a lot of shading around your house, whether from trees or tall buildings, the panels might not get enough sun to power your home.
      • How old are my appliances? Getting your electrical loads as small as possible before going solar means you’ll need a smaller system, which will be cheaper overall. If you have older electrical appliances, upgrade those before investing in solar panels.

      As long as your house is a good candidate for solar, it’s at least worth considering. We suggest using NREL’s PVWatts Calculator to estimate how much electricity a solar panel can produce over a year on your house. Project Sunroof is a reliable online solar savings estimator.

      Methodology: How we chose the best solar companies in Modesto

      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 Modesto, 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 Modesto 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:

      1. Sunrun
      2. Soleeva
      3. Project Solar

      Not sure how to choose?

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        Guide sources

        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:

        1. California Solar & Storage Association, “Thinking About Going Solar?” Accessed Oct. 3, 2024.
        2. DSIRE, "California Programs." Accessed Oct. 3, 2024.
        3. EnergySage, "The cost of solar panels in Modesto, CA." Accessed Oct. 6, 2024. 
        4. SolarReviews, "How much do solar panels cost in Modesto, 2024?" Accessed Oct. 6, 2024.
        5. EnergySage, “The cost of solar panels in California.” Accessed March 2, 2024.
        6. SolarReviews, “How much do solar panels cost in California, 2024?” Accessed March 2, 2024.
        7. Solar Energy Industries Association (SEIA), "California Solar." Accessed Oct. 3, 2024.
        8. Federal Trade Commission Consumer Advice, “Solar Power for Your Home.” Accessed Sept. 19, 2024.

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