French research institute CEA-INES has produced a 566 W heterojunction (HJT) demonstrator PV panel using Norwegian silicon wafers based on German polysilicon and solar cells made in France. The prototype has a carbon footprint of 317 kgCO2eq/kW, which is considerably lower than the maximum 800 kgCO2eq/kW standard for Chinese products.
French scientists have studied the fabrication of silicon heterojunction cells with p-type wafers. With the adoption of gallium doping, the p-type products could come close to matching the performance of their n-type counterparts. But optimal doping levels will be key to advancing this tech, said the researchers.
French research institute Liten has built the device with a new cell architecture that combines ultra-thin polycrystalline silicon layers with films of passivated transparent conductive oxide (TCO) contacts.
CEA-INES, the French National Institute for Solar Energy, is gearing up to host the fourth edition of its ECO-PV workshop. Originally scheduled to be held this spring, Covid-19 has seen it pushed back to March 2021. Experts in the field of solar sustainability will present on, and discuss, “Photovoltaics: towards a sustainable industry”, with topics ranging from recycling, lifecycle assessment and European policy to manufacturing and the circular economy. In an interview, the institute speaks to pv magazine about the current state of solar sustainability and its goals for future work.
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