Best Efficiency & Production
SunPower is the world record holder for the most efficient solar module1. Unlike its competitors, SunPower uses high grade n-type monocrystalline wafers combined with patented Maxeon® technology to generate efficiency ratings above 22%.
This stellar efficiency rating means that SunPower panels produce significantly more power per square foot than the nearest competition, which allows you to harvest more energy out of less space - and leaves you room to expand for future family or home additions, such as an electric car. In addition, SunPower’s innovative design keeps the panels producing higher rates of power longer.
Over the first 25 years, your SunPower panels will produce 70% more clean electricity than conventional panels in the same space2.
Here in the desert Southwest, we're no stranger to extreme weather conditions and temperature swings. Years of unrelenting heat and cold, wind, rain, hail, and snow can certainly take their toll on your roof! But while conventional solar systems lose power over time because of corrosion and breakage caused by environmental conditions, SunPower systems have a useful life of more than 40 years3. SunPower panels start with a corrosion-resistant solid copper backing that keeps on working even if the top layer sustains damage, and sturdy cell connectors adapt to daily temperature swings for less breakage. In fact, SunPower’s innovative cells eliminate 85% of the reasons that conventional cells fail so that you can enjoy the savings of solar for decades to come. Now that’s reliable power!
Along with industry-leading solar panels, SunPower also provides solar's best 25-Year Combined Power and Product Warranty:
To further enhance your peace of mind, CST Solar adds our own layer of protection with the region's best CST Lifetime Workmanship Warranty.
You can rest assured that your investment is safe with us.
Award-Winning Sustainable Technology
SunPower does more than create a wonderful green product. They lead the world in sustainable industry, including:
SunPower's commitment to social and environmental stewardship has resulted in the Corporation becoming the first and only solar company to achieve the prestigious Cradle To Cradle Certified™ Silver designation.
"We have never paid a PNM bill since its installation plus having received some $100.00 per year in pay-backs from PNM."
- Larry L., 2016
SunPower is a registered trademark.
1 Green, M.A., et. Al "Solar Cell Efficiency Tables (version 48)," Progress in Photovoltaics.
2 SunPower 345W compared to a Conventional Panel (250W, 15.3% efficient, approx. 1.6 m2), 9% more energy per watt, 0.75%/yr slower degradation. BEW/DNV Engineering "SunPower Yield Report," 2013 with CFV Solar Test Lab Report #12063, temp coef. Calculation. Cameau, Z. et al. "SunPower Module Degradation Rate," SunPower white paper, 2013. See www.sunpowercorp.com/facts for details.
3 SunPower Module 40-Year Useful Life, "SunPower white paper. 2013. Useful life is 99 out of 100 panels operating at more than 70% of rated power."
4 SunPower Corporation ("SunPower") warrants that for 25 years beginning on the Warranty Start Date1 (the "Warranty Period"), its photovoltaic modules specified above ("PV Module(s)"), shall be free from defects in materials and workmanship under normal application, installation, and use and service conditions, and the power output of the PV Modules will be at least 95% of the Minimum Peak Power2 rating for the first 5 years, and declining by no more than 0.4% per year for the following 20 years