NREL tests: SunPower X-Series solar panels reach 22.8 percent efficiency

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The National Renewable Energy Laboratory (NREL) recently tested and verified that a SunPower X-Series solar panel reached 22.8 percent efficiency – a new world record. SunPower’s newest X-Series solar panel, the X22, offers efficiencies of more than 22 percent. The high efficiency solar panels generate more energy in the same amount of space as conventional solar panels, which can reduce the number of panels needed to meet consumers’ energy needs. Compared to conventional solar panels with efficiencies that range from 15 to 18 percent, a SunPower X-Series solar panel produces over 70 percent more energy in the same space over the first 25 years.

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“Solar technology differs widely from brand to brand, so it’s important for consumers to consider that not all panels deliver the same amount of energy, look elegant on a roof, or are guaranteed to last as long as promised,” said Howard Wenger, SunPower president, business units. “SunPower panels are the most efficient that homeowners can buy, and we stand behind them for a quarter century. We’re proud to hold the world-record title for efficiency.”

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SunpowerWith more than three decades of experience, SunPower solar has been the choice of 500,000 homeowners worldwide to help save on electricity costs and meet energy needs. The high efficiency solar panels providing electricity to these homes feature the same SunPower solar cells that have enabled solar pioneers to push the boundaries of solar energy. With SunPower’s record-setting technology these visionaries are setting records of their own, innovating to take solar higher, farther, and faster.

In just over five years, SunPower has led the industry by setting four panel efficiency world records:

  • 19.5 percent efficiency in May 2010 with E19 solar panel
  • 20 percent efficiency in July 2011 with E20 solar panel
  • 21 percent efficiency in April 2013 with X21 solar panel
  • 22 percent efficiency in November 2015 with X22 solar panel

SunPower’s high efficiency E-Series and X-Series solar panels are currently available to consumers in the U.S. The E-Series and X21 solar panels are also available to consumers in Europe, Japan and Australia.

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