Over a quarter century of experience in the solar industry
The industry's best warranty ; 25-year warranty on system performance and a 10-year warranty on workmanship
Industry's most rigorously trained installers - comprehensive service from financing, installation and beyond; personalized service at every step from SunPower's Premier and Elite Dealers
2. Best Technology
Over 140 industry patents; world-record solar cell efficiency
SunPower solar panels produce up to 50% more power than conventional designs in the same amount of space - and up to four times more than thin-film solar panels. More energy produced means fewer panels on your roof.
3. Greatest Savings
Solar power from SunPower is one of the wisest investments you can make today. According to Businessweek, homeowners can expect a return on their solar power investment of 15% or more per year.
Research by the U.S. Department of Energy's Lawrence Berkeley National Laboratory finds that installing a residential solar energy system increases a home's value by an average of $17,000.*