For Businesses
Write a Review
  2. Homeowners
  3. Going Solar

Best Solar Companies of 2026

Sunrun, Freedom Solar Power and Project Solar are our top picks
  1. Best overall: Sunrun
  2. Best for payment options: Freedom Power
  3. Best price transparency: Project Solar
  4. Best value: ION Solar
  5. Best customer service: Freedom Forever

Join over 8,000 people who received a free, no obligation quote in the last 30 days.

    Enter details in under 3 minutes
    Author picture
    By: Kathryn Parkman
    +2 more
    Author picture
    Edited by: Cassidy McCants
    Author picture
    Fact-checked by: Jon Bortin

    Best Solar Companies of 2026

    Going solar can help save money on utility bills and reduce your household’s reliance on fossil fuels. But not all solar companies deliver on their promises. 

    After analyzing thousands of customer reviews, equipment options, payment plans and warranties, Sunrun stood out as the best solar company overall. Freedom Power offers more flexible payment options, and Project Solar has the most transparent pricing.

    Why trust ConsumerAffairs?
    • Our recommendations are based on what reviewers say.
    • 4,839,963 reviews on ConsumerAffairs are verified.
    • We require contact information to ensure our reviewers are real.
    • We use intelligent software that helps us maintain the integrity of reviews.
    • Our moderators read all reviews to verify quality and helpfulness.

    Our top 5 solar company picks

    1. Best overall: Sunrun
    2. Best for payment options: Freedom Power
    3. Best price transparency: Project Solar
    4. Best value: ION Solar
    5. Best customer service: Freedom Forever

    The ConsumerAffairs Research Team evaluated solar installers using a structured scoring model focused on installation quality, customer experience, pricing and buying flexibility. Read the full methodology to learn more about how we evaluate and rank solar companies.

    Some picks may be Authorized Partners that compensate us, but this does not affect our rankings or recommendations. ConsumerAffairs’ publishing policy ensures that journalistic content and user reviews on our site remain independent of commercial influences.

    Our top 5 solar company picks

    Learn more about solar energy
    Best overall
    Sunrun logo

    Sunrun

    4.3
    3,729 reviews
    Sunrun logo
    Max. panel efficiency
    22%
    Panel warranty
    Varies
    Payment options
    Cash, loan, lease
    Year founded
    2007
    Get Started Read Reviews
    Why we picked Sunrun

    Sunrun is our top pick overall because it gets positive feedback from verified customers plus offers a solid warranty. It also stands out for its strong battery options, including Tesla Powerwall installations and exclusive integration with the Ford F-150 Lightning for home backup power.

    The installation process starts by analyzing 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 system design for your home.

    More about Sunrun

    • Equipment: Sunrun systems use monocrystalline panels from reputable manufacturers. Battery storage options include Tesla, Lunar Energy and FranklinWH.
    • Warranties and guarantees: Purchased systems typically include a 10-year warranty covering workmanship and equipment, plus a 25-year performance guarantee. Sunrun’s performance guarantee generally ensures at least 90% of the system’s estimated production over 25 years.
    • Availability: California, Connecticut, Florida, Hawaii, Illinois, Maryland, Massachusetts, Nevada, New Hampshire, New Jersey, New York, Rhode Island, Texas and Washington, D.C.
    What reviewers say

    People appreciate the ease of the transition, savings on their electric bills and reliability of their systems. Some have reported billing issues or delays in installation (common complaints across the solar industry).

    “The representative from Sunrun who did the presentation was great. He explained that I would save money, and so far, I’ve saved a lot of money, especially with utilities going out of control.”
    John Mokena, IL
    “The switch to Sunrun was very smooth and easy. The installation process was straightforward, and I didn’t face any issues with it.”
    C Meriden, CT
    “We’ve noticed a major difference. We’ve had 100% savings. Overall, Sunrun, is a great company to go with.”
    Michael Denver, CO
    Real cost and savings examples

    Please note that actual savings vary by location and usage.

    • “My electric bill has only been between $35 and $40 all summer long with the solar,” Dale in Florida told us.
    • “You put out nothing upfront. It’s been a win-win for us,” Pamela in New Jersey wrote in a review. “Our bills are $5 or $6 a month, and there have been months where we had credits, so we had no bills.”
    Pros
    • Reliable system performance
    • Flexible payment options
    • Daily system monitoring
    • Roof leak warranty
    Cons
    • Occasional installation delays
    • Mixed customer service experiences
    • Some billing issues reported
    1x Award Winner
    Selected for having one of the highest satisfaction rates for Best Customer Service
    Best for payment options
    Freedom Power Solar logo

    Freedom Power Solar

    4.3
    342 reviews
    Freedom Power Solar logo
    Max. panel efficiency
    22.8%
    Panel warranty
    25 years
    Payment options
    Cash, loan
    Year founded
    2007
    Get Started Read Reviews
    Why we picked Freedom Power

    Freedom Power’s leasing model makes solar accessible without a large upfront investment. Lease payments can start around $100 per month, depending on system size, location and your credit score. Qualified buyers may be able to start with $0 down and defer payments for up to 18 months.

    Here’s when it makes sense: If your lease payment is lower than your current electric bill, you start saving immediately. And while utility rates are likely to increase over time, your payment stays more predictable. You’re essentially locking in today’s energy costs for the next 25 years.

    More about Freedom Power

    • Equipment: Maxeon, Mission Solar and Qcells solar panels; Tesla Powerwall or Enphase IQ batteries. Generators and electric vehicle (EV) charging solutions are also available.
    • Warranties and guarantees: Systems are backed by a 25-year equipment and installation warranty. System performance is guaranteed at 84% to 92% of the original production for 25 years.
    • Availability: Texas and Florida
    What reviewers say

    Reviewers consistently highlight strong customer service, smooth installations and effective monitoring tools. Some do note communication challenges due to multiple touchpoints.

    “The sign-up process was fine, and the installation was seamless.”
    Damon Rockwall, TX
    “Their customer service is also good and working with solar is as easy enough as it can be. The system is not doing anything other than what it’s supposed to, so things are going well.”
    Doug Lavon, TX
    “I've been with Freedom Power since last November, and my experience with them has been good. We had the salesperson as our customer service representative, and when they were in the selling process, they were very responsive, but their post-installation response time is a little slow.”
    Jack Fulshear, TX
    Real cost and savings examples

    Despite higher upfront costs, many customers report big savings.

    • Penny in Texas said that Freedom Power is not the cheapest. Her quote was about $4,000 more than another company she considered.
    • Russell in Texas spent over $120,000 on a system, including the Tesla battery.
    • Joseph in Texas said his electric bill dropped below $100 per month, even with heavy air conditioner use.
    • Lynn in Texas saves $150 to $300 per month.
    • Michelle in Florida saw her bill drop from $150 to $35.95.
    Pros
    • 0% escalator on leases
    • 24/7 performance monitoring
    • Transferable warranty
    • In-house, NABCEP-certified installation crews
    Cons
    • Limited availability
    • Some communication issues
    1x Award Winner
    Selected for having one of the highest satisfaction rates for Best Installation Experience
    Best price transparency
    Project Solar logo

    Project Solar

    4.3
    87 reviews
    Project Solar logo
    Max. panel efficiency
    20.9%
    Panel warranty
    25 years
    Payment options
    Cash, loan
    Year founded
    2016
    Read Reviews
    Why we picked Project Solar

    Project Solar stands out for its clear pricing model. Full-service installations can start around $1.61 per watt, depending on location and system design.

    This no-sales-gimmicks approach appeals to budget-conscious homeowners. Sales reps don’t earn commissions, which helps keep the process straightforward and pressure-free.

    More about Project Solar

    • Equipment: Systems incorporate Qcells, Canadian Solar and Jinko panels. Enphase IQ 5P or Tesla Powerwall batteries are available.
    • Warranties and guarantees: Project Solar provides a 25-year manufacturer’s warranty and a 10-year workmanship warranty. There’s an 84% production guarantee for 25 years.
    • Availability: Many states across the West, Midwest, Northeast and Southeast
    What reviewers say

    Many customers tell us about significant savings, though some report unexpected delays.

    “The entire installation process took less than a month. Since turning the system online, I’ve been producing more energy than I use, so I am in the positive. I’m also able to charge my electric car with it.”
    Donald Erie, PA
    “The signup process was easy, and the team was transparent in terms of what I should be expecting. I was satisfied with it.”
    Ashish Edmond, OK
    “Basically, I saved $6k compared to the nearest competitor, had a great install experience, and feel like I made absolutely the right decision.”
    Edwin San Diego, CA
    Real cost and savings examples
    • Bill in Utah spent around $15,000 going solar and now pays less than $15 per month for power.
    • Gary in Colorado pays a $10 monthly administrative fee to his utility. “Otherwise, my electric bill is always zero,” he wrote in a review.
    • Dan in New Mexico said his electric bill is usually less than $40.
    • Praveen in Florida said their system is cost-effective: “For the same amount of kilowatts, my friend installed a higher rate whereas I am done with $13,000 and he paid $24,000.”
    Pros
    • Wide availability
    • Streamlined installations
    • Roof leak warranty
    • Good value for money
    Cons
    • Subcontracted installers
    • Occasional communication issues
    Best value
    ION Solar logo

    ION Solar

    4.2
    120 reviews
    ION Solar logo
    Max. panel efficiency
    21.9%
    Panel warranty
    30 years
    Payment options
    Cash, loan, lease
    Year founded
    2013
    Read Reviews
    Why we picked ION Solar

    ION Solar offers strong value for homeowners who want premium equipment and a smooth installation process (without the complexity of managing permits, HOA approvals or multiple contractors). Its streamlined installation process includes custom design, and all equipment is backed by a solid warranty.

    Most projects are completed in 60 to 90 days. However, solar installations are complicated projects — there’s always a chance that projected timelines change due to weather, supply chain issues and other factors.

    More about ION Solar

    • Equipment: ION Solar’s NABCEP-certified installers use Silfab solar panels and Enphase microinverters.
    • Warranties and guarantees: All work performed during the installation is covered for 10 years. Panels are guaranteed to produce at least 85% of their original output after 30 years. Enphase microinverters come with a 25-year warranty.
    • Availability: Colorado, Connecticut, Illinois, Maryland, Nevada, New Mexico, Ohio, Oklahoma, Oregon, Rhode Island, South Carolina, Texas, Utah and Virginia
    What reviewers say

    Happy clients tell us about quick installations, lower electric bills and good customer service. People sometimes mention issues with poor communication or unexpected costs.

    “The price is very similar to what we would have paid without the solar and the app gives us all the information we need in nice monthly graphs.”
    Ricky Portland, ME
    “My experience with ION Solar has been good. The installation was smooth. There were a few dirt marks from when the guy went in and out of our window that he left behind. But other than that, it was good and I’m pleased.”
    Ashley Riverside, CA
    “Ion Solar is a premium provider, which is rare in the solar space. Local warehouse, local employees. No sub-contracting which is great. We had a great experience overall. Ion has been in business for over 10 years and I see why they continue to dominate the industry.”
    Richard Norfolk, VA
    Real cost and savings examples
    Pros
    • In-house installation crews
    • Premium hardware
    • 24/7 monitoring
    • Solid warranty
    Cons
    • Some communication issues
    • Occasional installation delays
    1x Award Winner
    Selected for having one of the highest satisfaction rates for Best Installation Experience
    Best customer service
    Freedom Forever logo

    Freedom Forever

    4.0
    394 reviews
    Freedom Forever logo
    Max. panel efficiency
    Varies
    Panel warranty
    25 years
    Payment options
    Cash, loan, lease
    Year founded
    2011
    Read Reviews
    Why we picked Freedom Forever

    Freedom Forever makes going solar simple. The company has knowledgeable support staff who keep you in the loop throughout the entire installation process. We also like that its online portal lets you track your installation, access documents and monitor your system’s energy production.

    More about Freedom Forever

    • Equipment: Installers primarily use Tesla equipment, along with select panel brands. Tesla Powerwall storage batteries are also available.
    • Warranties and guarantees: The standard warranty covers repairs or replacements if something breaks. A 25-year production guarantee promises that your system will produce energy as outlined in your contract.
    • Availability
      • Arizona
      • California
      • Colorado
      • Connecticut
      • Delaware
      • Florida
      • Georgia
      • Illinois
      • Maine
      • Maryland
      • Massachusetts
      • Michigan
      • Missouri
      • Nevada
      • New Hampshire
      • New Jersey
      • New Mexico
      • Ohio
      • Oregon
      • Pennsylvania
      • Puerto Rico
      • Rhode Island
      • Texas
      • Vermont
      • Virginia
      • Washington
      • Wisconsin
    What reviewers say

    People like it when Freedom Forever delivers high-quality solar panel installations. But you should also be aware that some reviews mention issues like delays in service.

    “Freedom Forever had been great to work with. The rep who got us set up was great about working with our schedules, and the installation crew were thorough, respectful, and appropriately communicative.”
    Ben Yakima, WA
    “Most of the process wasn't too involved, but the whole thing takes way too long.”
    Chunwai Niles, IL
    “The installation itself went well, and the team was professional. However, the project experienced a significant delay earlier due to internal issues, which caused financial and logistical impact.”
    Karen-Symone Stockton, CA
    Real cost and savings examples
    • Noah in Washington was paying close to $300 a month for his electricity bill, and it hasn’t been more than $195 since switching to solar.
    • The reality fell short of the sales pitch for Noe in California, who found that an inadequate panel array meant that “we now pay more than before” despite promises of lower utility bills.
    Pros
    • Easy to get started
    • Helpful online portal and mobile app
    • Variety of financing options
    • Good production guarantee
    Cons
    • Installation delays
    • Communication issues
    • Possible unexpected costs
    Best solar companies by state
    Best solar companies by city

    Solar Energy Companies Buyers Guide

    Jump into our guides and start learning

    In this guide

    Top Picks

    See who reviewers like

    Sunrun logo
    Freedom Power Solar logo
    Project Solar logo
    See our top picks

    Simplify your search

    Switch to solar with a system built for you.

      ConsumerAffairs has heard from thousands of homeowners who have already installed solar panels. Many are happy with their choice — people like clean energy and lower electric bills. But others say solar wasn’t worth the cost. In the worst-case scenario, homeowners end up paying for a system that doesn’t work and still have to cover their regular utility bills.

      This guide explains how to choose a good solar company, explore incentives and prepare for installation.

      Key insights

      The average residential solar panel system costs $20,534 in 2026. Expect to pay an extra $7,000 to $18,000 if you also want an energy storage battery.

      Jump to insight

      Small roof? High-efficiency panels can help. They cost more but make more energy in less space.

      Jump to insight

      Systems usually pay for themselves in about 11.4 years, and the average homeowner can avoid $49,283 in total utility costs over 25 years.

      Jump to insight

      How to choose a solar company

      Based on our research, the best solar energy companies share a few traits: positive customer feedback, helpful reps, high-quality equipment and reliable warranties. Here are the key steps to finding the right fit.

      1. Consider your energy goals

      If you’re going solar to save on energy costs, your system must be big enough to keep up with your household’s energy needs. Otherwise, you’ll still have to pay your local utility company for supplemental power. 

      The average American household needs a 7.5-kW system to offset their energy needs.

      If your goal is energy independence, you need a solar storage battery. Otherwise, you will have to connect to the grid at night. (Solar panels only generate electricity when the sun is shining.)

      2. Read solar company reviews

      Look at what other people say about the company. Stay away from companies with a lot of complaints about bad service or broken promises. Watch out for these red flags:

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

      3. Compare a few quotes

      Solar installation prices can vary a lot from company to company. Compare at least three or four estimates to find the best deal. Don’t go with the first company you find.

      The average cost per watt is $2.78 in 2026.

      Most installers set the price according to the system’s wattage, with a typical cost between $2.00 and $3.50 per watt. Think of it like miles per gallon for a car: It shows how efficient your system is.

      Make sure your solar quotes include installation, permits and grid hookup, and watch for hidden fees like monitoring or service charges.

      If you also have an electric vehicle, ask about EV charging options. Ask about critter guards to protect your panels if you live in a rural area.

      4. Check licenses and certifications

      Solar installers need electrical licenses in a lot of states. The best solar companies are often associated with the North American Board of Certified Energy Practitioners (NABCEP) or are certified by the Solar Rating & Certification Corporation (SRCC).

      5. Pay attention to the warranty

      A good solar company will offer a strong warranty and help with any problems later. Most solar panels are covered for 25 years. Inverters and batteries might have different warranty lengths, so ask about that too.

      If you add battery storage, confirm the battery's warranty length and performance guarantees. Some states have battery-specific incentives that require minimum warranty periods to qualify for rebates.

      Pro tip

      Upgrade old appliances with more eco-friendly ones before you go solar. If you use less electricity, you need fewer solar panels, which makes the entire system more cost-effective.

      » WATT’S THE DIFFERENCE? kW vs. kWh

      What to know about panels and other solar equipment

      The most common residential photovoltaic (PV) panels — monocrystalline and polycrystalline — are made of silicon cells. Silicon cells easily absorb photons from the sun.

      But it's not just about picking the best solar panels. A solar array is made up of many different components working together.

      • Solar panels: Some solar panels work better than others. Small roofs may need more expensive high-efficiency panels to make enough power. High-efficiency panels generate more power per square foot, allowing you to produce the same energy with fewer panels. However, lower-efficiency panels may be more cost-effective if space isn't a concern.
      • Solar batteries store that sunny day for a rainy one. If you want to store the energy produced by your solar panels for use later, you need to install solar batteries and a charge controller. This is especially useful if you live in an area with frequent power outages or if you want to use solar energy when the sun is not shining.
      • Mounting and tracking systems maximize sun exposure. This attaches the solar panels to your roof or another location on your property. The mounting system needs to be sturdy and weather-resistant.
      • Inverters turn sunlight into usable energy. The solar inverter converts the direct current (DC) electricity produced by the solar panels into alternating current (AC) electricity that can be used to power your home or business.
      • Monitoring lets you keep track of your system through an app. Monitoring apps give you real-time data on the performance of your solar panels. You get an alert if there's a drop in performance. Some advanced monitoring systems let your solar installation company access performance data remotely, which facilitates quick repairs.

      How much do solar panels cost?

      “The price of a system will depend on your electricity usage,” Neil Gallagher, who owns a solar company in Florida, explained. “There's not a fixed price but more of a range.”

      On the high end, we talked to a solar customer in Massachusetts who paid around $50,000 for a system and a solar customer in Hawaii who spent $100,000.

      The table below doesn’t include the cost of a solar battery, which adds $7,000 to $18,000 to your total system costs.

      Average solar panel cost by system size

      Average solar panel costs by state

      A standard 7-kilowatt (kW) solar panel system costs $19,547. But if your household uses a lot of electricity, you need a bigger, more expensive system. Solar panel prices also vary by location.

      *Before any financial incentives; **How long it takes to break even on solar panel installation costs with cash purchase; ***Total utility power costs avoided over 25 years

      How to pay for solar panels

      Most people choose one of three options: a loan, a lease, or a power purchase agreement (PPA).

      With a solar loan, you borrow money to buy the system and make monthly payments until it’s paid off. You eventually own the panels.

      With a solar lease or PPA, you never own the system. Instead, a solar company installs and owns the panels, and you pay them a set amount each month. Leases are usually a flat fee. With PPAs, you pay for the power you use.

      Pro tip 

      If your loan or loan payment is higher than what you currently pay for electricity, solar panels might not save you money.

      » SOLAR PANELS: Buy vs. lease

      Is going solar worth it?

      Solar is worth it for a lot of homeowners. Systems usually pay for themselves in about 11.4 years years, and the average homeowner can avoid $49,283. 

      Look out for pushy sales reps who make big promises.

      How much money solar saves you depends on electricity costs in your area. In states that offer full-retail net metering credits, adding a battery mainly provides backup power rather than extra savings, so factor that into your payback calculations.

      Real-world examples

      Since going solar, Lowell in Oklahoma said his average monthly electric bill went from $125 to about $15. Another solar customer, Rosineia in Massachusetts, told us she saves around $1,000 per year.

      In the worst-case scenario, you spend thousands on midtier equipment from a company with no follow-up support, like Jaycodezone in New York. “You keep paying for the solar loan and the electric company. I had installed solar with them just last year,” they wrote in a review, “and the panels have stopped producing power. No one is commenting on when this will be fixed.”

      » EXPLORE: Where solar savings go the furthest

      Solar energy pros and cons

      Despite the high upfront costs, solar offers energy savings that can deliver a strong return on investment over time. Breaking down the pros and cons can help you get a better idea of whether or not solar is worth it for your home.

      Pros

      • Lower monthly energy bills
      • Energy independence
      • Reduced carbon footprint
      • Government incentives
      • Increased home value

      Cons

      • High initial cost
      • Can't move with you
      • Not a one-size-fits-all solution
      • Some ongoing maintenance

      Is my house a good candidate for solar panels?

      Not every household benefits from solar panels in the same way. 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. When determining if solar is a good option for your home, you should also ask yourself the following questions:

      • What is the condition of my roof? Considering panels last about 25 years, it could be smart to replace your roof before going solar. Otherwise, you might have to spend thousands removing the panels, fixing your roof and reinstalling them. For instance, when Gwen in California had to re-roof her house, it cost $5,790 to temporarily uninstall and reinstall the panels.
      • What is my roof's angle, pitch and size? Roofs that face south, southeast or southwest are typically the best angle for solar panels, and a roof pitch of 25 to 45 degrees is best. The average dimensions of a solar panel are roughly 5.5 feet by 3.25 feet. Ideally, your roof is big enough to fit the number of panels required to meet your energy needs.
      • How much sunlight does my roof get? Lots of shade around your house — lots of tall trees or buildings, for instance — and your solar panels won't be as efficient. Solar panels still work on cloudy days, but the electricity generation drops by about 10% to 25%. Direct sunlight definitely boosts energy output.

      What are the best states for going solar?

      See how your state compares with others on residential electricity prices, solar installation costs, solar potential and solar-friendly policies.

      How solar installations work

      Understanding the installation process is important to knowing what you should expect.

      1. Initial consultation: Some installers might show you satellite images of your home at different times of the day. These pictures show which sides of your home get the most sunlight.
      2. Site assessment: The installer evaluates your roof's orientation, size, shading and condition. These assessments provide an overview of your property's overall solar potential.
      3. System design: The installer then designs a solar system for your property and provides a detailed proposal based on the site assessment and your energy needs. This proposal should include the system size (in kilowatts), estimated energy production, cost, potential savings and return on investment.
      4. Panel installation: After you secure your permits, your solar company begins the installation process. This part typically takes a few days but can vary based on the system's size and complexity.
      5. Final inspection: Once the solar system is installed, it needs to be inspected by local authorities and the utility company (if grid-tied) to ensure it meets all regulations. After inspections, the system can be commissioned, and you can start generating solar power.
      6. Ongoing maintenance: Systems require some maintenance. You can clean your panels yourself, or hire a professional once or twice a year to keep performance optimal. Otherwise, dirt, debris and other substances accumulate on panels over time, reducing their effectiveness.

      FAQ

      How do solar panels work?

      Solar photovoltaic (PV) panels work by harnessing the power of the sun and converting it into usable electricity. The most common types of residential solar PV panels — monocrystalline and polycrystalline — are made of silicon cells, which easily absorb photons from the sun.

      If your solar panel system is connected to the grid, any excess energy your system generates during the day can be fed into the grid and credited to your account through net metering. At night, your system can draw energy from the grid to power devices and appliances in your home.

      Solar panels still work on cloudy days, but the electricity generation drops by about 10% to 25%. Direct sunlight definitely boosts energy output.

      How many solar panels do I need to power my house?

      The average American household ends up needing 15 to 30 panels to fully power a home. How many solar panels you need depends on your energy usage, roof and solar panels' efficiency. To figure out your energy usage, check your utility bill for "kWh used." To get your monthly average, look at bills for the past year, add up the stated kWh used and divide by 12.

      In general, the output of one residential solar panel is anywhere from 100 watts to 500 watts, depending on the capacity of the equipment and operating conditions. Most panels on homes are rated to output between 250 watts and 450 watts, meaning they produce 250 to 450 watt-hours of electricity for each hour they are exposed to direct sunlight.

      For example, if your household uses 1,000 kWh per month, and you install panels that each generate 400 watts under optimal conditions, you'll need about 21 panels to meet your energy needs. Here's the math:

      • 1,000 kWh per month divided by 30 days = 33.3 kWh per day
      • 33.3 kWh per day divided by 5 hours of effective sunlight per day = 6.7 kW solar system
      • 6.7 kW divided by 0.4 kW (400-watt panel) = 16.75 panels

      However, this doesn’t account for system losses, shading or seasonal changes, so installers typically recommend adding 10% to 30% more capacity, bringing you to about 21 panels.

      What solar options are available for small businesses?

      Businesses, local governments and nonprofits of all sizes can benefit from commercial solar panel installation. Solar carports, ground-mounted systems and solar thermal energy systems are also options. The biggest difference between commercial and residential solar panels comes down to scale, financing options and tax incentives.

      Do I need a solar battery?

      A solar battery is not always necessary, but it can provide significant benefits. Solar batteries store excess energy generated during the day for use when your panels aren't producing electricity, such as at night or during power outages. They are particularly useful if you want energy independence, live in an area with frequent grid outages or don't have net metering options with your utility company. However, they do add to the overall cost of your solar system.

      How long does it take to install solar panels?

      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. Dan in California said it took a few weeks; Shahida in New York said it took a year.

      What is Tier 1 solar company?

      A Tier 1 solar company makes its own panels and has done so for at least five years with a track record of reliable products. This label often means it's a stable business that invests in research and manufacturing.

      Get expert advice on solar companies

      How do solar panels help reduce my carbon footprint?
      Robert Kaufmann

      Robert Kaufmann

      Professor, environmental science, Boston University

      Solar panels generate electricity without using fossil fuels (e.g., coal, oil or natural gas). Burning fossil fuels is the largest source of anthropogenic sulfur emissions. As such, solar panels reduce carbon emissions, which reduces one’s carbon footprint.

      Read their bio
      Yogi Goswami

      Yogi Goswami

      Professor, chemical engineering, University of South Florida

      Since solar panels convert sunlight to power directly without the need to burn any fuel, no CO2 is emitted while sunlight is being converted to electrical power. Considering that power from coal emits about 1.05 kg CO2/kWh, from natural gas about 0.44 kg/kWh and from oil about 1.1 kg/kWh (based on the data from the U.S. Energy Information Administration), solar panels significantly reduce carbon footprints by avoiding these emissions.

      Read their bio
      Sarah Kurtz

      Sarah Kurtz

      Professor, electrical engineering, University of California Merced

      Solar panels help by reducing the amount of fossil fuels that are used to generate electricity. If used alongside electric vehicles and heat pumps, solar panels further decrease the reliance on fossil fuels in transportation and heating. If solar panels were widely adopted, they could eventually eliminate our carbon footprint altogether by replacing fossil fuel-based energy generation.

      Read their bio
      Harvey Bryan

      Harvey Bryan

      Professor, building technology, Arizona State University

      Solar energy can offset grid power, which is usually generated by carbon-based fossil fuels, making your home’s energy use cleaner. The impact depends on your utility — some have a high level of renewables, while others rely heavily on fossil fuels like coal and natural gas. Many utilities now offer clean energy plans, which supply 100% renewable electricity to customers at a slight premium. Advances in battery storage also help balance solar output, making it a more reliable energy source that reduces dependence on dirtier power plants.

      Read their bio
      Can solar panels help regions affected by climate change?
      Robert Kaufmann

      Robert Kaufmann

      Professor, environmental science, Boston University

      The reduction in local carbon emissions will have little immediate effect on the severity or frequency of climate-induced flooding or extreme heat. However, if properly networked into the grid, solar panels can decentralize power production, increasing the supply of electricity to localities during extreme weather events.

      Read their bio
      Yogi Goswami

      Yogi Goswami

      Professor, chemical engineering, University of South Florida

      Certainly, solar panels help. However, since the global environment doesn’t have any boundaries, having more solar panels everywhere would help reduce the carbon footprint and, therefore, reduce the impact of climate change.

      Read their bio
      Sarah Kurtz

      Sarah Kurtz

      Professor, electrical engineering, University of California Merced

      Solar panels can provide localized benefits, such as offering shaded parking to reduce heat exposure. However, they do not prevent floods directly, as extreme weather events will continue to occur.

      Read their bio
      Harvey Bryan

      Harvey Bryan

      Professor, building technology, Arizona State University

      Yes, but the impact is global rather than local. Rising CO2 levels from centuries of fossil fuel use have driven climate change, and while solar adoption helps, results aren’t immediate — it might take decades to see the benefits. Countries like Norway, with 90% [electrical vehicle] adoption, show how policy can drive change. The challenge is ensuring long-term commitment, as some governments scale back renewable efforts due to political shifts, slowing down climate action.

      Read their bio
      Are there environmental risks associated with large-scale solar panel installations?
      Robert Kaufmann

      Robert Kaufmann

      Professor, environmental science, Boston University

      The laws of thermodynamics dictate that every human effort has environmental risks. The extraction of materials used and the fabrication of solar panels cause environmental damage. However, these damages are generally smaller than those caused by other forms of electricity generation.

      Read their bio
      Yogi Goswami

      Yogi Goswami

      Professor, chemical engineering, University of South Florida

      If we plan to recycle solar panels, the effect on the environment from used panels will be very small. As for the land use, you certainly need land for the solar panels. However, for residential use, you can use the roofs of buildings for solar panels. For larger scales, you can use strategies to reduce the land-use impact and, in some cases, make a positive impact. For example, for large car parking lots, you could use the panels to provide shade to the parked cars. For agricultural farms, you could use the panels to form the boundaries of the farms.

      Read their bio
      Sarah Kurtz

      Sarah Kurtz

      Professor, electrical engineering, University of California Merced

      Solar competes with agriculture for land use, but strategies such as agrivoltaics allow for dual use of land. While solar panels do contribute to waste, their long lifespan (decades) minimizes the waste issue compared to other energy sources.

      Read their bio
      Harvey Bryan

      Harvey Bryan

      Professor, building technology, Arizona State University

      All energy sources have risks: Fossil fuels impact climate; hydropower can disrupt aquatic life; nuclear presents long-term waste storage challenges. Solar’s impact is relatively minor, but land use and end-of-life disposal need careful management. Compared to fossil fuels, solar has far fewer environmental drawbacks. The key is to weigh risks over time — legacy energy sources like coal and natural gas cause significant pollution, while renewable options, despite some challenges, offer a more sustainable path.

      Read their bio
      What are the main barriers to solar adoption?
      Robert Kaufmann

      Robert Kaufmann

      Professor, environmental science, Boston University

      One of the largest obstacles is the large up-front costs. As such, many households cannot afford solar panels even though they would save money in the long run. This barrier can be lowered by low interest loans. Also, renters find it difficult to reap the benefits of solar panels because renters do not have property rights.

      Read their bio
      Sarah Kurtz

      Sarah Kurtz

      Professor, electrical engineering, University of California Merced

      The barriers to solar adoption are highly variable. In New York City, it is difficult to find low-cost places to mount [solar panels] that will not be frequently shaded, but in California, the challenge is more about how to make use of the solar electricity after the sun sets. California has installed > 13 GW of batteries that can charge during the day and then discharge after sunset. Even though 13 GW is roughly half of a typical nighttime load in California, California could still benefit from more batteries. In many places, people don’t want to change how they are using land. If a county considers itself to be an agricultural county, replacing fields of corn with solar panels changes the county’s identity. Perhaps using agrivoltaics can help in such a case because sheep can graze underneath the panels, allowing the farmers to continue creating food for everyone’s tables while also generating electricity without carbon emissions.

      Read their bio
      Yogi Goswami

      Yogi Goswami

      Professor, chemical engineering, University of South Florida

      The biggest barrier is that, for solar power, you have to pay for the panels and the balance of the system up front, while the benefit comes over time after the capital investment has been made. Since the panels pay for themselves over time, creative financing schemes can make it possible for the users to pay costs over time so that the periodic payments are less than the savings from the panels.

      Read their bio
      Harvey Bryan

      Harvey Bryan

      Professor, building technology, Arizona State University

      Uncertainty, misinformation and policy shifts are major barriers. The recent pause on infrastructure investments has slowed renewable growth despite prior tax credits boosting the industry. Battery storage is expanding rapidly, making solar more viable, and utilities are adopting it for economic benefits. However, shifting political priorities might redirect funding back to fossil fuels. Overcoming these obstacles requires long-term planning, public awareness and stable government support.

      Read their bio
      Disclaimer

      Information in this guide is general in nature and is intended for informational purposes only; it is not legal, health, investment or tax advice. ConsumerAffairs.com makes no representation as to the accuracy of the information provided and assumes no liability for any damages or loss arising from its use.

      Methodology: How we found the best solar energy companies

      The ConsumerAffairs Research Team compared popular solar panel companies on several factors to select our top picks for this guide.

      What we evaluated

      We assessed companies across eight primary metrics:

      Customer experience (based on verified reviews submitted Feb. 1, 2023, to Jan. 31, 2026):

      • Installation satisfaction
      • Customer service satisfaction
      • Price satisfaction

      Policies and buying flexibility:

      • Warranty and performance guarantees
      • Payment options
      • Price transparency

      Responsiveness and recency:

      • Review volume in the past six months
      • Response rate to recent reviews

      How scoring works

      Each company earned a score of zero to 10 for each metric.

      • The top performer for a given metric earned a 10.
      • Other companies were scored relative to that leader.
      • Companies that did not offer a feature received a zero for that metric.

      This standardized approach allows us to compare review data, company policies and pricing factors on the same scale.

      How winners were determined

      All companies were evaluated using the same metrics. Award categories apply different weightings depending on what the designation highlights. For example:

      • Best overall balances installation satisfaction, customer service, pricing and warranty strength.
      • Best value places greater emphasis on price satisfaction and warranty protection.
      • Best for payment options heavily weighs financing flexibility.
      • Best price transparency prioritizes clear, upfront pricing practices.
      • Best customer service emphasizes service satisfaction scores.

      The company with the highest weighted score in each category earned the corresponding designation.

      Companies must also meet minimum review activity thresholds to ensure rankings reflect meaningful, recent customer feedback.

      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. Federal Trade Commission Consumer Advice, “Solar Power for Your Home.” Accessed Jan. 26, 2026.
      2. N.C. Clean Energy Technology Center, “Database of State Incentives for Renewables & Efficiency.” Accessed Jan. 26, 2026.
      3. Solar Energy Industries Association, “Residential Consumer Guide to Solar Energy.” Accessed Jan. 26, 2026.
      4. EnergySage, “Solar panel cost in 2026: It may be lower than you think.” Accessed Jan. 26, 2026.
      5. Solar Energy Industries Association, “Solar Market Insight Report.” Accessed Jan. 26, 2026.

      Not sure how to choose?

      Get buying tips about Solar Energy Companies delivered to your inbox.

        By entering your email, you agree to sign up for consumer news, tips and giveaways from ConsumerAffairs. Unsubscribe at any time.

        Thanks for subscribing.

        You have successfully subscribed to our newsletter! Enjoy reading our tips and recommendations.

        Compare more solar companies

        Showing 10 of 163

        Want your company to be on this guide?

        Yes, continue
        Comparing

        ×
        Trending in Solar