The factors for this equation were determined in consultation with experts at the National Renewable Energy Laboratory (NREL) based upon conservative best estimates and utilization of NREL's Annual Technology Baseline (ATB) tool and PVWatts Calculator. PR = Performance ratio, coefficient for losses (range between 0.5 and 0.9).H = Annual average solar radiation on tilted panels (shadings not included).The number of American football fields covered with solar panels is determined by dividing the annual amount of green power procured in kWh by 1,380,498 kWh, which is the estimated annual electricity output of one football field (including end zones) covered by PV solar panels.Ĭalculating annual PV solar system output is a function of the equation E = A * r * H * PR, in which: Number of Football Fields of Solar Powered for One Year Department of Energy, Energy Efficiency and Renewable Energy Division. Land-Based Wind Market Report: 2021 Edition Data File (xlsx) (Capacity Factor in 2020 by COD Year worksheet) U.S. Land-Based Wind Market Report: 2021 Edition (pdf) U.S. x x x = 8,573,631 kWh generated annually from one wind turbine. wind capacity factor (0.3559) and by the number of hours per year (8,760 hours). Electricity generation from an average wind turbine is determined by multiplying the average nameplate capacity of a wind turbine in the United States (2.75 MW) by the average U.S. Department of Energy (DOE), the average wind capacity factor in the U.S. In 2020, the average nameplate capacity of wind turbines installed in the United States was 2.75 megawatts (MW) (DOE 2021a). How much electricity does an American home use? The conversion factor for this equivalency statement is /. The number of American homes is determined by dividing the annual amount of green power procured in kWh by 10,715 kWh. Energy Information Administration (EIA), the average annual electricity consumption for an American household in 2020 was 10,715 kWh, an average of 893 kWh per month (EIA 2021). Number of American Homes’ Electricity Use for One YearĪccording to the U.S. This page describes the calculations used to convert green power electricity (kilowatt-hours ) into various types of equivalencies.

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