1. Most Experience
- 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
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- 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.*