SunPower Reaches 23.4% Cell Efficiency

SunPower Corporation announced that it has produced a full-scale, five-inch prototype solar cell with an efficiency of 23.4%. This is a world-record for a large area solar cell according to the company.

“This is a step function increase from our 22% efficient Gen 2 technology, which has been in mass production since last year,” said Tom Werner, CEO of SunPower. “Credit for this achievement goes to our world-class research and development team led by Dick Swanson and Bill Mulligan, as well as to our talented engineering group.”

SunPower has reported improvements of its cell efficiency in the laboratory and in mass production since its first all-back contact solar cell prototype in 2003.

“We are pleased to have demonstrated early success with our Gen 3 technology,” said Bill Mulligan, vice president of technology and development at SunPower. “This record efficiency solar cell, which is expected to be commercially available in approximately two years, extends SunPower’s leadership position and is a key component of our plan to reduce system cost by 50% by the year 2012.”


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