Energy use of proof-of-work blockchains

Energy use of proof-of-work blockchains

The Bank for International Settlements has criticized the public proof-of-work blockchains for high energy consumption. Nicholas Weaver, of the International Computer Science Institute at the University of California, Berkeley examines blockchain's online security, and the energy efficiency of proof-of-work public blockchains, and in both cases finds it grossly inadequate. The 31—45 TWh of electricity used for bitcoin in 2018 produced 17—22.9 MtCO2.

• 1History
• 2Structure
  • 2.1Blocks - Block Time - Hard Forks
  • 2.2Decentralization
  • 2.3Openness - Permissionless -  Permissioned (private) blockchain - Disadvantanges of Private Blockchain -BlockChain Analysis
• 3Uses
  • 3.1Cryptocurrencies
  • 3.2Smart contracts
  • 3.3Financial services
  • 3.4Video games
  • 3.5Energy trading
  • 3.6Supply chain
  • 3.7Domain Names
  • 3.8Other uses
• 4Types
  • 4.1Public blockchains
  • 4.2Private blockchains
  • 4.3Hybrid blockchains
  • 4.4Sidechains
• 5Academic research
  • 5.1Adoption decision
  • 5.2Collaboration
  • 5.3Blockchain and internal audit
  • 5.4Energy use of proof-of-work blockchains
  • 5.5Journals