SunPower® Residential DC Panel SunPower X-Series panels combine the top efficiency, durability and warranty available in the market today, resulting in more long-term energy and savings. 1,2 Premium Aesthetics SunPower® SignatureTM Black X-Series panels blend harmoniously into your roof. The most elegant choice for your home. Highest Lifetime Energy and Savings Designed to deliver 60% more energy in the same space over 25 years Fundamentally Different. And Better. in real-world conditions like partial shade and high temperatures. 2 25-year Energy Yield per Watt  Unmatched reliability 3  Patented solid metal foundation prevents breakage and corrosion Conventional Panel Solar Cell  Enables highest efficiency panels available 2 Up to 60% More Lifetime Energy SunPower® X-Series Best Reliability, Best Warranty With more than 25 million panels deployed around the world, SunPower technology is proven to last. That’s why we stand behind our panel with the industry’s best 25-year Combined Power and Product Warranty, As Sustainable As Its Energy  Ranked #1 in Silicon Valley Toxics Coalition 2015 Solar Scorecard 4  First solar panels to achieve Cradle to Cradle Certified™ Silver recognition 5  Contributes to more LEED categories than conventional panels 6 Warranted Panel Power including the highest Power Warranty in solar. 100% 98% 96% 94% 92% SunPower® E-Series and X-Series 12% More Power in Year 25 Conventional Panel

® X-Series: X21-350-BLK SunPower Residential DC Panel Electrical Data SPR-X21-350-BLK Nominal Power (Pnom) 7 Power Tolerance Operating Condition And Mechanical Data Impact Resistance 1 inch (25 mm) diameter hail at 52 mph (23 m/s) Rated Voltage (Vmpp) Solar Cells Rated Current (Impp) Panel Efficiency Tempered Glass Current Temp Coef. G5 Frame: Wind: 62 psf, 3000 Pa front & back Snow: 125 psf, 6000 Pa front G3 Frame: Wind: 50 psf, 2400 Pa front & back Snow: 112 psf, 5400 Pa front Class 1 black anodized (highest AAMA rating) Voltage Temp Coef. Power Temp Coef. Maximum Series Fuse High-transmission...