Cambridge Ranks Ethereum Among Lowest-Energy PoS Chains
A new Cambridge study clocks ETH at 7.87 GWh annually, bolstering its ESG case for iGaming operators.
A Cambridge study published this week estimates Ethereum consumes just 7.87 GWh annually and ranks it second-lowest in market-value-adjusted energy intensity among all proof-of-stake networks examined, according to CoinTelegraph.
Why It Matters
For iGaming operators and crypto casino platforms that accept ETH, the finding addresses a persistent reputational liability: player and regulator concern over blockchain environmental impact. A network processing billions in gambling volume each year now carries an independently verified, low-energy credential. As of July 2026, ESG scrutiny of payment rails is intensifying across European licensing jurisdictions, making Cambridge's data directly relevant to compliance narratives. Operators citing independent academic benchmarks carry more weight with regulators than those relying on self-reported figures.
Context
Ethereum completed its shift from proof-of-work to proof-of-stake in September 2022 — the "Merge" — which the Ethereum Foundation estimated cut the network's energy consumption by roughly 99.95 percent. Cambridge's Centre for Alternative Finance has tracked crypto energy use for years and is widely treated as the academic standard-bearer for such estimates, giving this latest figure credibility that industry-sponsored research does not command.
What's Next
Cambridge has not yet published a full updated ranking across all major PoS networks, so the complete comparative dataset remains pending. iGaming compliance teams should monitor the full report release, as league-table positioning could influence which chains operators prioritise for payment integration.
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