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• 05:43, 10 November 2024 Elie talk contribs created page EROI (Created page with "'''EROI''' stands for "'''energy return on investment'''". {{minor|Even in a world without money, EROI would still matter just as much.}} Definition: <code>EROI = energy_returned / energy_invested</code> ==For energy sources== EROI is an essential factor in determining whether an energy source is viable or not. The EROI has to be a lot greater than '''1''' (otherwise it would never "break even"). ==For energy storage== The EROI of any energy storage will always be '...")