Ethereum Energy Consumption Index - Digiconomist

Digiconomist's Ethereum Energy Consumption Index estimates the network's total energy use and reports that Ethereum cut its electricity requirement by at least 99.84% by switching production methods, according to its December 2022 research. The index says Ethereum moved from proof-of-work to proof-of-stake on September 15, 2022, which removed energy-intensive mining because block creation no longer depends on computing power. The page notes that blockchains remain less energy-efficient than centralized alternatives because data is replicated across many nodes, and it compares proof-of-stake Ethereum with Mastercard to illustrate that decentralization carries an energy cost.