たいようこうはつでん 太陽光発電
1. solar power (generation)
Wikipedia definition
2. PhotovoltaicsPhotovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material. Materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium gallium selenide/sulfide.
Read “Photovoltaics” on English Wikipedia
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to talk about this word.