A. Brooks, J. Fijal, M. T. St. Germaine, Sean Orsburn, James B. Greenberg, V. Lonij, D. DellaGiustina, A. Cronin
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Conversion efficiencies of six grid-tied inverters at the Tucson electric power solar test yard
We measure the conversion efficiencies of six inverters manufactured by Fronius, SMA, and Xantrex. We measure efficiencies ranging from 87.0% to 91.7%. We find differences between manufacturers' specified efficiency and field performance of -3.8% and -6.0% Inverter efficiencies are also studied as a function of global horizontal irradiance and ambient temperature.