File:Comparaison consommations énergie bockchain fr.png
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A rough comparison of the order of magnitude of energy consumption per transaction for different architectures.
Summary[edit]
| Description |
Français : Consommation approximative d'énergie (par transaction) par type de blockchain. Attention : ce diagramme est présenté avec une échelle logarithmique
1) Un simple serveur enregistre des transactions en consommant peu d'énergie. 2) Un système centralisé typique sans blockchain utilise une base de données et des sauvegardes plus complexes, consommant donc un peu plus d'énergie. 3) Une blockchain autorisée à petite échelle ("interentreprises" par exemple), a un degré de redondance similaire, mais génère des frais généraux et une consommation supplémentaire par transaction, mais limités par exemple, par un consensus PoA et une cryptographie plus complexes. 4) Une blockchain sans autorisation sans PoW à grand nombre de nœuds peut consommer beaucoup plus d'électricité (en raison d'un degré élevé de redondance). 5) une chaine Proof-of-Work, de type Bitcoin, est intrinsèquement extrêmement énergivore. English: A rough comparison of the order of magnitude of energy consumption per transaction for different architectures. A simple server can operate transactions with very low energy consumption. A typical non-blockchain, centralized system in applications will use a more complex database and backups, thus mildly increasing the energy consumption. A small-scale permissioned blockchain as used in cross-enterprise use-cases has a similar degree of redundancy, but some additional yet limited overhead due to, e.g., PoA consensus and more complex cryptographic operations. A non-PoW permissionless blockchain with a large number of nodes can already exhibit a significantly increased energy consumption due to the high degree of redundancy. However, compared to a major Proof-of-Work blockchain, energy consumption is still negligible |
| Date | |
| Source | Sedlmeir, J., Buhl, H.U., Fridgen, G. et al. The Energy Consumption of Blockchain Technology: Beyond Myth. Bus Inf Syst Eng 62, 599–608 (2020). https://doi.org/10.1007/s12599-020-00656-x |
| Author | Johannes Sedlmeir, Hans Ulrich Buhl, Gilbert Fridgen & Robert Keller |
source : Sedlmeir, J., Buhl, H.U., Fridgen, G. et al. The Energy Consumption of Blockchain Technology: Beyond Myth. Bus Inf Syst Eng 62, 599–608 (2020). https://doi.org/10.1007/s12599-020-00656-x CC-BY SA 4.0
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