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Land-use requirements and the per-capita solar footprint for photovoltaic generation in the United States

机译:美国用于光伏发电的土地使用要求和人均太阳能足迹

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In this report, we estimate the state-by-state per-capita "solar electric footprint" for the United States, defined as the land area required to supply all end-use electricity from solar photovoltaics (PV). We find that the overall average solar electric footprint is about 181 m~2 per person in a base case scenario, with a state- and scenario-dependant range from about 50 to over 450 m~2 per person. Two key factors that influence the magnitude of the state-level solar electric footprint include how industrial energy is allocated (based on location of use vs. where goods are consumed) and the assumed distribution of PV configurations (flat rooftop vs. fixed tilt vs. tracking). We also compare the solar electric footprint to a number of other land uses. For example, we find that the base case solar electric footprint is equal to less than 2% of the land dedicated to cropland and grazing in the United States, and less than the current amount of land used for corn ethanol production.
机译:在此报告中,我们估算了美国各州的人均“太阳能足迹”,定义为向太阳能光伏(PV)提供所有最终用途电力所需的土地面积。我们发现,在基本情况下,总体平均太阳能足迹为每人约181 m〜2,状态和方案相关的范围为每人约50到450 m〜2以上。影响状态水平太阳能足迹大小的两个关键因素包括工业能源的分配方式(基于使用地点与消费地点)以及假定的光伏配置分布(屋顶平顶,固定倾斜与平顶)。跟踪)。我们还将太阳能足迹与其他许多土地用途进行了比较。例如,我们发现基本情况下的太阳能足迹仅占美国耕地和牧场专用土地的2%以下,还不到目前用于玉米乙醇生产的土地数量。

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