Extended Data Fig. 1: Fossil fuels Energy Return On Investment (EROI) values when used as fuels only. | Nature Energy

Extended Data Fig. 1: Fossil fuels Energy Return On Investment (EROI) values when used as fuels only.

From: Estimation of useful-stage energy returns on investment for fossil fuels and implications for renewable energy systems

Extended Data Fig. 1

a, Final- and useful-stage average EROI for the five fossil fuel groups, at the global level. b, Useful-stage EROI by end-use category for the five fossil fuel groups, at the global level. Calculations consist of a weighted average of fossil fuels used as fuels only.

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