4.1/5 (360 ratings)
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About SunPower

Changing the way our world is powered by making solar and storage more accessible to everyone. SunPower is a solar company that provides reliable energy solutions for homeowners with the most comprehensive warranty in the solar industry. Known for its top-quality and high-efficiency solar panels, SunPower solutions have the ability to generate more power than conventional solar technologies.

    Overall Satisfaction Rating

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    • Long warranty
    • Variety of financing solutions
    • Broad U.S. dealer network


    • PPAs for commercial clients only

    Bottom Line

    SunPower offers the world's first 400 watt solar panels, which use less space. The company offers competitive lease and loan products, its solar panels are guaranteed to not lose more than 8% DC power production over 25 years.

    SunPower Reviews

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    Page 60 Reviews 1745 - 1775
    Rated with 1 star
    Verified Reviewer
    Original review: Nov. 8, 2015

    Entered a lease agreement with Sunpower with the understanding that cost per kwh would be reduced. After 2.5 years of operation, the Sunpower facility under-produces the contract guarantee. There is no prospect, because of physical limitations, for the system to come into compliance with the guarantee in the future. More importantly, during 2013 Edison power was delivered at an average cost of 0.258$/kwh. After including maintenance cost, 21 Sunpower panels produced power at at a cost of 0.479$/kwh. Including nominal maintenance cost the total cost of power in 2013 was $8708. In 2012 with total power usage the same as 2013, using Edison power alone, the total cost was $6456. The addition of the Sunpower facility is an unacceptable burden.

    18 people found this review helpful
    Rated with 5 stars
    Verified Reviewer
    Original review: Nov. 3, 2015

    We love our SunPower panels and the customer service is amazing. So thankful we made the choice to lease with them. Can't wait to get them installed on our rental property. Highest efficiency panels and a seriously great team we got to work with through the process. Thank you!

    Be the first one to find this review helpful
    Rated with 2 stars
    Verified Reviewer
    Original review: Oct. 18, 2015

    If you finance with them, they will put a lien on your home should you want to refinance or sell. It should just be for their equipment but it will still show up as a lien on your home title. SunPower is very slow to work with your bank to do what they call a temporary termination of the lien during any transaction with your home. DON'T DO! I owned my home and wanted to use a cash out and they delayed the closing. If not happy, file compliant with any financing arrangement with Consumer Financial Protection Board. Also, don't buy in the summer because it take months before they can get it approved by local energy supplier and inspectors. Do not use the program that adds it to your taxes either.

    14 people found this review helpful
    Rated with 1 star
    Verified Buyer
    Original review: Sept. 25, 2015

    Do NOT lease with SunPower. They tried to bamboozle me with making payments for the former owners of my new house. When we got a roof leak, they did not respond to any calls to get the panels off. We had to call an attorney. When they did finally call back after 3 weeks with the attorney involved, they told us they could remove and replace the panels for $6,000. I have all the emails that show their incompetence and trickery. Do your homework before you sign ANYTHING with SunPower.

    20 people found this review helpful
    Rated with 1 star
    Verified Reviewer
    Original review: April 27, 2015

    In short SunPower and their local dealer SunCommon were negligent in our installation. Initial delays notwithstanding there was never any mention of the potential for personal injury or property damage, nor were the commonly available preventative measures discussed. In year 1 we lost our gutters, after involving BBB and state authorities Dealer agreed to pay $800 for repairs verbally, we got $400. 24 hours after clearing deck with my children snow come crashing down causing extensive property damage. Had that occurred when we were out there my children could have been injured.

    I sought a claims adjuster to set scope of work as SP and SC agreed to cover damage. At no time did we intend to file a claim. Now we are effectively being accused of conspiring to commit insurance fraud by double dipping. I asked that system lease be paid out or that it be removed and home restored to original condition. They have refused and rescinded offer to cover damages. Why is full disclosure not required of these "cowboys"? I do not have the funds to sue and have yet to find an attorney interested in taking this as a contingency case. Help!

    28 people found this review helpful
    Rated with 5 stars
    Original review: March 13, 2015

    Initially I was torn between the world's best technology and the world's most horrible review which I couldn't understand. I investigated the review in more depth and interviewed the home owners and it turns out that SunPower was the manufacturer of the panels and the home owner did not know the install company. The search continues. I called SunPower and it turns out that the company was an install partner almost like SunPower was the bank and the install companies were brokers, that was enough for me to go to SunPower directly which it turns out that is what their inside sales company is named, SunPower Direct.

    I called in and spoke to a SunPower agent and they were very knowledgeable, and asked me a lot of questions about my lifestyle i.e. do I use more night or day energy. They asked if I know how much I am paying for electricity and educated me about PG&E and the rates over the last decade. The SP agent helped me get my usage, and set me up with a consultation time and date that worked for me.

    The next day the ** the direct energy consultant came on time. He was great. He asked me many questions about why I am looking to go solar, how long I have been looking, have I looked with any other companies, asked about my lifestyle, and where I worked - I didn't know that SunPower works with a many companies in the valley) and it turns out because I work at Brocade I received a $2000.00 rebate which was great. He went over the SunPower tech and showed me how SunPower panels are the most efficient panels in the world and produce 75% more energy than traditional panels over 25 years. ** said if you are going to go solar you are better going all the way. SunPower panels are designed to wake up earlier, work harder, and work late into the evening, when other panels quit. I was sold!

    ** took laser measurements and pictures. He measured the angles of my roof, and took pictures of my main service panel and my sub panel. We went in my house and he was the only solar guy who took his shoes off without me asking. He asked me for my last 12 months electricity usage and based on my that’s plus my roof orientation, and trees and chimneys. He designed the system right then and there and gave me the SunPower price. Result: 12/345 X-21 Modules designed at Stanford University by Richard M Swanson and his Electra.

    To my surprise the SunPower system used 20% fewer panels than the SolarCity, sunrun, and sungevity systems. I look at the solar system as an energy grid, so I want to know how much it produces and for how long it will produce those numbers. To my surprise the SunPower system produced 7100kWh of electricity annually and it is guaranteed to only depreciate by .25% annually. I am all about function so power was what I was after so he recommended X-21 345 watt panels and according to my bill I use an average of 650 watts per month. The SunPower (4.14kW 12/345 watt X-21 modules) which produces 7100 kWh annually.

    Overall: The SunPower system has 8 less panels, yet produces 7,100kWh or 2170 kWh more that the nest best. Plus SunPower boast the worlds best 25 year product and power warranty, this means if anything on the system breaks, malfunctions, or underproduces we go there to replace. System was 20% smaller than the Solar City (4.9kW 20/ 245 watt Trina modules), Sun Run (4.89kW 19/255 watt REC modules), and Sun Gevity (4.95kW 19/275 watt LG modules) all these systems produce at minus 6845 kWh annually with SunPower producing.

    84 people found this review helpful
    Rated with 1 star
    Verified Reviewer
    Original review: Jan. 7, 2015

    We had solar panels installed by Ross Solar (CT) in Feb 2014. We have a 20 yr. lease with Sun Power that we pay $67.61/month. Over the last 2 months, our PSEG electric bills have doubled. Sun Power has admitted that our system is operating at 51%. Ross Solar NEVER, NEVER returns our calls. Sun Power has told us they are investigating, yet 2 months have gone by and still nothing has been fixed. We are so done with both companies!! HELP!

    83 people found this review helpful
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    SunPower Company Information

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    51 Rio Robles
    San Jose
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    United States