Farm Yields Per Acre

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Concept: from one acre of land with 1000W/sq meter insolation (400kW of electricity if you install PV), you get the following values of production - depending on what you plant on that acre:



  • Global steel production - 2000 million tons per year [1]. 1000 tons of solar steel are possible per acre, or 1 million tons per 1000 acres (square mile). Global steel production can be replaced with under 2000 square miles allocated to solar steel. The Sahara is 3.5M square miles, for reference [2]. Thus, less than 1/10th of a percent of the Sahara can produce the World's steel. The US used to produce 50% of the world's steel, now China does - [3]