Solar Frontier of Tokyo worked with the New Energy and Industrial Technology Development Organization (NEDO) to achieve 20.9% conversion efficiency with its copper indium selenide (CIS) thin-film solar cell. The 0.5cm2 CIS cell exceeds the company’s previously set world record of 19.7 percent and also surpasses the previous world record for all thin-film solar cells of 20.8 percent conversion efficiency that was set with a CIGS solar cell. The Fraunhofer Institute verified the new record.
In other news, Solar Frontier and Chopro Co Ltd have signed a contract with the Nagasaki Prefectural Government and the Land Development Public Corporation of Nagasaki Prefecture to construct and operate a 29.1 MW solar power plant at an airport in Nagasaki prefecture. Chopro is a liquefied petroleum gas (LPG) distributor and a solar power producer headquartered in Nagasaki Prefecture.
“Solar Frontier’s new 20.9% efficiency record resulted from a CIS cell cut from a 30cm by 30cm substrate produced using a sputtering-selenization formation method – the same method we use in our factories,” Solar Frontier’s CTO, Satoru Kuriyagawa, said.
Kenji Araki, representative director at Chopro said, “We now look forward to working on one of the world’s largest installations at an airport – at home in Nagasaki.”
iroto Tamai, Solar Frontier’s president and representative director added, “Our Nagasaki project integrates the economic advantages of Solar Frontier’s CIS solar energy system solutions, from supplying high-performance CIS modules through to operation & maintenance, with Chopro’s expertise as an energy supplier local to Nagasaki.”