Full definition
In Proof of Stake, validators deposit a stake (32 ETH for Ethereum, or ~€80,000) and are randomly selected to propose or validate blocks. No cryptographic puzzle to solve: electricity consumption falls by 99.95 % compared with Proof of Work. Ethereum switched to PoS during the Merge (September 2022), reducing consumption from 80 TWh/year to ~2.5 GWh/year.
Also known as
- Preuve d'enjeu
- The Merge
Key figures
- -99.95 %reduction in Ethereum consumption when switching PoW -> PoS (September 2022)