EROEI stands for Energy Return on Energy Invested.

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EROEI is a commonly used metric for assessing the energy efficiency of different energy sources. It measures the ratio between the amount of energy produced by a system over its lifetime and the amount of energy that was invested to create and operate that system. A high EROEI indicates that the energy source is efficient and economically viable, while a low EROEI suggests that the energy source may not be cost-effective or sustainable in the long term.

EROEI Stands for Energy Return on Energy Invested