Ethereum Energy Consumption

Ethereum's energy consumption is estimated at about 0.0026 TWh per year across its entire global network, according to a bottom-up study by the Crypto Carbon Ratings Institute (CCRI). The study estimated 2,601 MWh of annual electricity consumption, corresponding to yearly emissions of 870 tonnes CO2e. CCRI estimates that The Merge, Ethereum's move from proof-of-work to proof-of-stake, cut annualized electricity consumption by more than 99.988% and carbon footprint by approximately 99.992%, from 11,016,000 tonnes CO2e to 870.