Performance of the 30 KW CPV System Installed in Coastal Area in Japan

A 30 kW concentrator photovoltaic power plant was constructed and has started operation. The power consumption of the tracking motors was only 19.6 W, namely 0.07% of the rated power. Improved optics that reduces the mismatching losses associated with variance of optical losses. 25.8% (STC) of efficiency was achieved even in as large as 23.8 m2 of the array size. The annual energy generation was about 1,000 kWh/kW, corresponding almost equivalent value to the crystalline silicon system in spite of unwanted climate to CPV.