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Best Solar Companies in Carlsbad, CA

We compared 78 brands and chose the top solar energy companies

    • Top overall
      Sunrun
      4.3(3,551)
    • Solar equipment
      Sunlux
      3.9(580)
    • DIY projects
      ShopSolar
      4.7(218)
    Author picture
    By: Kathryn Parkman
    +2 more
    Author picture
    Edited by: Cassidy McCants
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    Fact-checked by: Jon Bortin

    Best Solar Companies in Carlsbad, CA

    Sunrun is the best solar company in Carlsbad, California, based on local customer satisfaction ratings. Sunlux stands out for offering quality solar panels and battery storage systems. ShopSolar is our pick for long-term savings on energy bills.

    Why trust ConsumerAffairs?
    • Our recommendations are based on what reviewers say.
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    • Our moderators read all reviews to verify quality and helpfulness.

    Our top 3 solar company picks for Carlsbad

    1. Best overall: Sunrun
    2. Best solar equipment: Sunlux
    3. Best for DIY projects: ShopSolar

    The ConsumerAffairs Research Team compared popular solar companies on customer ratings and reviews, warranties, availability and other factors to select the top picks for this guide. Our picks may be Authorized Partners that compensate us, but this does not affect our evaluations. Read the full methodology for all the details on how we make solar company recommendations.

    Compare Carlsbad’s top solar companies

    Our Carlsbad solar company picks

    Solar can be a big investment. This guide highlights companies best equipped to meet most Carlsbad residents’ energy needs.

    Our top pick overall

    Sunrun

    Sunrun
    4.3
    3,551 reviews
    Max. panel efficiency
    22%
    Panel warranty
    Varies
    Payment options
    Cash, loan, lease
    Year founded
    2007
    Get Started Read Reviews
    Pros
    • Reliable systems
    • Flexible payment options
    • Comprehensive warranties
    • Daily system monitoring
    • Long-term savings
    Cons
    • Occasional installation delays
    • Some customer service complaints
    • Occasional billing issues

    Sunrun specializes in customized solar systems. The installation process starts with an analysis of your past electricity bills to estimate your energy needs. Next, representatives assess your roof’s unique conditions — such as shading, pitch and sun exposure — to create the optimal design for your home.

    We also like that Sunrun’s leasing program lets you go solar without a huge upfront investment. With leases, Sunrun owns the system, and you pay a fixed monthly fee to use it.

    Happy Sunrun customers tell us about significant cost savings on electricity bills. Some reviews mention dissatisfaction with contract terms, so be sure to read agreements closely before signing anything.

    “My experience with Keegan as a sales rep and Jamie as a design specialist was helpful. The Sunrun team was very informative and educating. They were knowledgeable and punctual. I liked their professionalism and the overall feel was lowkey and easy going.”
    jeff Carlsbad, CA
    “Throughout my experience with Sunrun, I've interacted with their customer service multiple times, mostly because they remind me when my Wi-Fi codes change. Their team is extremely responsive and always friendly. They make sure to follow up.”
    Stephanie Oceanside, CA
    • Services: Sunrun is a full-service installer that offers battery storage and EV charging solutions.
    • Equipment: Installers use monocrystalline panels from reputable manufacturers. Tesla, Lunar Energy and FranklinWH solar storage batteries are available.
    • Warranties: The standard warranty covers workmanship and equipment for 10 years for purchased systems. The performance guarantee lasts 25 years. Leased systems typically come with free maintenance and repairs.
    1x Award Winner
    Selected for having one of the highest satisfaction rates for Best Customer Service
    Our pick for solar equipment

    Sunlux

    Sunlux
    3.9
    580 reviews
    Max. panel efficiency
    19.7%
    Panel warranty
    25 years
    Payment options
    Cash, loan and lease
    Year founded
    2012
    Read Reviews
    Pros
    • Lots of local experience
    • 24/7 system monitoring
    • Flexible financing options
    • Lifetime customer support
    • Long-term savings
    Cons
    • Occasional installation delays
    • Some customer service complaints

    Sunlux is a top-rated solar company serving Southern California. Its sales reps are knowledgeable, and its project managers keep installations on track, so most projects go smoothly.

    The company installs solar panels from Aptos Solar Technology, REC and Qcells. For batteries, it offers Tesla Powerwall, Enphase storage systems and SolarEdge storage systems. Sunlux systems can also incorporate Siemens VersiCharge EV chargers.

    Overall, customers say the panels perform well and can reduce electric bills. We also like that the 24/7 monitoring app lets you easily track your system’s performance, and tech support is on standby if anything goes wrong.

    We’ve heard some relatively minor complaints about installation delays and communication. Solar panel installations are complicated projects, and there’s always the chance of delays.

    “Sunlux has done everything they said they were gonna do and they responded to every question I've had. Their contract was very detailed and it included the requirements that the law required.”
    Steven Oceanside, CA
    “We called Sunlux and we chose them because they had everything that we needed. No matter what my question was, they were there. They walked us through the process and helped us every step of the way.”
    Victor Vista, CA
    • Services: Sunlux specializes in residential solar panel installations with battery backup systems. Reps can coordinate financing, EV charging and smart home solutions, as well as roofing services if needed. It’s available throughout Southern California, including Carlsbad.
    • Warranties: Sunlux has two tiers of warranty options. The standard warranty covers your system's installation and physical components (panels, inverter and racking) for 25 years. With Platinum Protection, Sunlux also covers labor for repairs and guarantees the energy your system generates for 25 years.
    • Payment options: Sunlux accepts cash and third-party loans. It also has leases and prepaid leasing plans.
    Our pick for DIY projects

    ShopSolar

    ShopSolar
    4.7
    218 reviews
    Max. panel efficiency
    Varies
    Panel warranty
    Varies
    Payment options
    Cash, loan
    Year founded
    2018
    Read Reviews
    Pros
    • Great for RVs and outbuildings
    • Price-match guarantee
    • 30-day return policy
    • Lifetime customer support
    Cons
    • Some shipping and delivery delays
    • Occasional issues with defective or damaged products

    We think ShopSolar is an awesome place to buy solar equipment for do-it-yourself projects. You can find everything needed for an off-grid or hybrid setup on homes, RVs and outbuildings.

    You can pay for your order in full upfront through ShopSolar’s secure website. Financing is available at rates from 0% to 36% APR.

    “The website was user-friendly and offered the lowest price I could find anywhere. Ordering was straightforward, and the product arrived promptly.”
    Alan Temecila, CA
    “I bought a Jakiper 48V server rack battery from ShopSolar and everything went well. I liked the price. The battery is more for backup if the power goes out.”
    Simon Saratoga, CA
    • Equipment: You can buy new and used solar panels, solar storage batteries, inverters, charge controllers, cabling and hardware, mounts and racks. Equipment comes from quality brands like REC, Renogy, Canadian Solar and EcoFlow.
    • Warranties: ShopSolar is an authorized distributor of all the brands it sells, so all solar equipment is covered by the individual manufacturers’ warranties.

    Methodology: How we chose the best solar companies in Carlsbad

    We started with a list of popular solar energy companies and narrowed it down to those serving Carlsbad. We then ranked them based on the factors that matter most to homeowners:

    Local customer satisfaction (65%)
    We analyzed reviews from verified customers in the Carlsbad area. Companies with the most recent positive ratings were scored higher.

    Price satisfaction (7%)
    We evaluated customer feedback on overall cost and value.

    Installation satisfaction (7%)
    We looked at reviews of the installation process, including professionalism, timeliness and overall quality of the work.

    Customer service satisfaction (7%)
    We evaluated feedback on how responsive and helpful each company is before, during and after installation.

    Payment options (7%)
    We considered companies that make paying for solar easier by offering multiple financing and payment options.

    Warranties and guarantees (7%)
    A long warranty shows confidence in a company’s work. We compared both equipment and workmanship warranties. Our top picks provide 10 to 25 years of coverage.

    Pro tip

    If your home is near the coast, exposure to salty air can corrode solar equipment. Choosing durable, corrosion-resistant materials and scheduling regular maintenance can help extend the lifespan of your system.

    Solar Companies in Carlsbad Buyers Guide

    Jump into our guides and start learning

    In this guide

    Top Picks

    See who reviewers like

    Sunrun logo
    Sunlux logo
    ShopSolar logo
    See our top picks

    Simplify your search

    Switch to solar with a system built for you.

      ConsumerAffairs has heard from thousands of Californians who have already gone through the solar panel installation process. Here’s what Carlsbad residents should look for when choosing a solar panel installation company.

      Key insights

      A typical residential solar panel installation costs $16,632 in Carlsbad.

      Jump to insight

      High electricity costs in San Diego County make going solar a good financial decision for a lot of homeowners.

      Jump to insight

      Solar panels are a long-term investment — most systems last 25 years or more. That means choosing the right installer is just as important as choosing the right equipment.

      Jump to insight

      The federal solar tax credit expires at the end of the year, meaning you only have until Dec. 31, 2025, to install a system and get the 30% solar tax credit.

      Jump to insight

      How to choose a solar company in Carlsbad

      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.

      1. Read reviews

      Look at reviews on platforms like ConsumerAffairs, Better Business Bureau and solar-specific forums to see real customer experiences. Watch out for these red flags:

      • Equipment failures that aren’t resolved quickly
      • Misleading sales tactics about costs or savings
      • Billing and contract issues

      Local experience matters too. Companies with a history in the San Diego area understand local incentive programs, utility rules, permitting requirements and how to design systems that perform well in the semi-arid Mediterranean climate.

      2. Check credentials

      Look out for solar scammers who falsely claim to be affiliated with a San Diego County or California government agency.

      California requires solar contractors to hold a C-46 licensing classification, which you can check through the Contractors State License Board. Also, confirm your installer has:

      • Insurance coverage to protect your home during installation
      • NABCEP certification (the North American Board of Certified Energy Practitioners is a respected national credential for solar installers)

      3. Compare quotes

      Get at least three or four quotes to compare different proposed equipment, pricing, financing terms and estimated energy production.

      Consider if you need an electric vehicle (EV) charger or solar storage battery. Just the cost of an energy storage battery adds $7,000 to $18,000 to your system’s price tag.

      If you don’t understand something about the payment terms, warranty or ongoing services, get clarification. You don’t want to pay hidden fees for monitoring or maintenance if something breaks.

      Did you know?

      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.

      » TIPS: Get the best solar quotes

      Solar panel costs in Carlsbad

      A typical solar panel installation costs anywhere from $8,005 to $22,871 in California. Prices in Carlsbad are comparable, ranging from $8,091 to $23,117.

      Homeowners with solar panels can save $20,000 to $110,000 over 25 years.

      System size is a major solar cost factor. The average Carlsbad household needs a system with a capacity of 7.2 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.

      Most installers set the price according to the system's wattage, with a typical cost between $2.50 and $5 per watt. In California, the average cost per watt is $2.29.

      Average solar panel costs by system size in Carlsbad

      Solar incentives in Carlsbad

      With the federal solar investment tax credit expiring at the end of the year, it makes sense to take advantage of as many local solar incentives in California as possible.

      For instance, 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.

      Is solar worth it in Carlsbad?

      Solar panels are generally worth it in California if you like the idea of lowering your monthly utility bills. With good planning, solar can save money and provide energy independence in the long run. On average, Carlsbad homeowners with solar panels can avoid $108,915 in total utility costs over 25 years.

      Solar panels typically pay for themselves within 10 years.

      There’s also the environmental benefit. The impact of a single house going solar may seem small. But when enough people in a city like Carlsbad go solar, the cumulative reduction in air pollution can be significant.

      For a lot of homeowners, the main drawback is the high upfront cost of purchasing and installing the panels and equipment. Assuming an upfront purchase, it takes about 5.17 years to break even (when your savings with solar panels make up for the cost).

      Potential roof problems

      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?

      FAQ

      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.

      » SOLAR PANELS: Buy vs. lease

      How do I know what system size I need?

      If you’re going solar to save on energy costs, you have to make sure your system is big enough to generate enough power.

      On your electric bill, it should say how many kilowatt-hours (kWh) you used last year. Divide that number by 1,200 to estimate your system size in kilowatts (kW). For example, if you used 12,000 kWh last year, you need a 10-kW system.

      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.

      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? Carlsbad 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.

      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.

      Guide sources

      ConsumerAffairs writers primarily rely on government data, industry experts and original research from other reputable publications to inform their work. Specific sources for this guide include:

      1. California Solar & Storage Association, “Thinking About Going Solar?” Accessed Oct. 17, 2025.
      2. DSIRE, “California Programs.” Accessed Oct. 17, 2025.
      3. Solar Energy Industries Association (SEIA), “California Solar.” Accessed Oct. 17, 2025.
      4. U.S. Department of Energy, “Homeowner’s Guide to Solar.” Accessed Oct. 17, 2025.

      Not sure how to choose?

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