Unmatched Performance, Reliability and Aesthetics

Our top-of-the-line solar panels give homeowners more energy. They deliver the highest efficiency available in a residential solar panel today, at a record-breaking 21.5%.1 That means homeowners get more electricity, more flexibility, more peace of mind, and lower electricity bills.

  • 1. Highest of over 3,200 silicon solar panels, Photon Module Survey, Feb 2014. 
SunPower solar panels produce the most energy over the system’s lifetime

Advantages

  • Most energy from less space: SunPower X-Series solar panels deliver 44% more power per panel.2 Which means you can create more power in smaller spaces, with fewer panels. And, you can position them on the sunniest parts of your roof.
     
  • Most electricity: Simply put, SunPower X-Series panels produce more electricity than conventional panels. They convert more sunlight to electricity, producing 75% more energy per square foot over the first 25 years.3,4
     
  • Most flexibility: Because X-Series residential solar panels generate more electricity from a smaller area, you can expand energy production simply by using additional roof space to add more panels later.
     
  • Most peace of mind: More guaranteed power. SunPower offers the best combined power and product warranty over 25 years. And because they’re built on a solid copper foundation, SunPower solar cells deliver unmatched reliability over the lifetime of your solar energy system.5
  • 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.  Campeau, Z. et al. "SunPower Module Degradation Rate," SunPower white paper,  2013. See www.sunpowercorp.com/facts for details.
  • 3,. All comparisons are SPR-X21-345 vs. a representative conventional panel: 250 W, approx. 1.6 m², 15.3% efficiency
  • 4. SunPower 345W compared to a Conventional Panel (240W, 15% efficient, approx. 1.6 m2), 9% more energy per watt, 0.75%/yr slower degradation. BEW/DNV Engineering "SunPower Yield Report," Jan 2013, with CFV Solar Test Lab Report #12063, Jan 2013 temp. coef. calculation. Campeau, Z. et al. "SunPower Module Degradation Rate," SunPower white paper, Feb 2013. See www.sunpowercorp.com/facts for details.
  • 5. Same as E-Series, which was #1 rank in "PV Module Durability Initiative Public Report," Fraunhofer CSE, Feb 2013. Five out of the top 8 largest manufacturers were tested. Campeau, Z. et al. "SunPower Module Degradation Rate," SunPower white paper, Feb 2013.
Cradle to cradle certified
Cradle to Cradle Certified

We're proud to announce this prestigious honour for sustainable manufacturing of our SunPower® E-Series and X-Series Solar Panels made in Mexico and France – the world's first solar panels to be Cradle to Cradle CertifiedTM Silver1.

  • 1. Cradle to Cradle Certified™ is a certification mark licensed by the Cradle to Cradle Products Innovation Institute. Cradle to Cradle Certified™ is a multi-attribute certification program that assesses products and materials for safety to human and environmental health, design for future use cycles, and sustainable manufacturing.