Ethereum Energy Use Falls 99.9% to 7.87 GWh After Merge

Ethereum News

Ethereum's annual electricity consumption has fallen more than 99.9% since its 2022 transition to proof-of-stake, a new Cambridge Centre for Alternative Finance report concludes. The network now draws roughly 0.90 megawatts of continuous power, down from about 2.4 gigawatts in the proof-of-work era, when energy-hungry ASIC mining secured the chain. That translates to annual usage of just 7.87 gigawatt-hours. Researchers measured real-world draw across 20 client configurations and built a bottom-up estimate covering roughly 8,522 observable full nodes. The finding reframes Ethereum, an altcoin that once rivalled a small nation's appetite, as a network running on less than half the yearly electricity of a single London museum.

The report also quantified Ethereum's climate footprint, estimating annual greenhouse-gas emissions at roughly 2.37 kilotonnes of CO2 equivalent — a decline of about 99.98% versus the pre-Merge baseline. To frame the scale, that residual figure equals roughly 3.5 round-trip Boeing 747 flights between London and New York, or the yearly energy use of about 900 UK households. The analysis further contrasted Ethereum with the traditional banking system, which consumes an estimated 260 terawatt-hours annually across data centres, branches and ATMs. On that basis, our reading of the figures puts Ethereum's power draw at less than one thirty-thousandth of the legacy financial infrastructure it aims to complement.

Geographic centralization emerged as the report's central caveat. Of roughly 8,522 observable full nodes recorded as of May 2026, about 62% sit within just four countries. The United States hosts the largest share at 31%, followed by Germany at 16%, Finland at 8% and France at 6%. Researchers concluded that Ethereum's remaining environmental burden now depends less on the proof-of-stake mechanism itself and more on the regional grids and energy mixes powering those clusters. The finding underscores that decentralization of validating capital does not automatically translate into geographic dispersion of the physical hardware that actually consumes electricity across the network.

Infrastructure concentration extends to the operators themselves. Cloud and enterprise environments run about 64% of Ethereum nodes, with home setups accounting for the remaining 36%. Three providers dominate: Germany's Hetzner hosts 15.4%, Amazon Web Services 12.8% and France's OVHcloud 11.6% — together roughly 40% of all full nodes. Software diversity is similarly narrow, with about 79% of execution-layer nodes running either Geth or Nethermind. Such concentration raises resilience questions even as energy use plummets, since correlated outages or policy shifts at a handful of hosting firms could affect a substantial slice of the network's validating capacity at once.

Staking participation continues to anchor the network's economic security. On-chain data shows roughly 40.3 million ETH staked as of July 10, equal to about 33% of circulating supply. The report calculated a weighted-average draw of roughly 105 watts per node, with lightweight home nodes using a median 18 watts and enterprise workstations closer to 152 watts. Notably, researchers estimated that 56.4% of the electricity powering Ethereum comes from sustainable sources — 39.4% renewables and 17% nuclear — above the global grid average. Natural gas remains the single largest input, supplying 27.7% of the network's power.

Corporate accumulation of ETH also advanced this week. Treasury firm BitMine acquired an additional 20,500 ETH from Galaxy Digital, extending a buildout that had already reached about 5.742 million ETH as of late June. That holding places the company at roughly 95% of its stated goal to control 5% of Ethereum's total supply. The purchase signals persistent institutional appetite for ETH, the settlement asset underpinning much of DeFi's automated market maker infrastructure, even amid a cautious tape, and adds to the pool of staked and treasury-locked ETH that has steadily tightened available float.

COINOTAG's proprietary 42-indicator composite S/R scoring engine rates the $1,807 resistance at 99/100 — the session's pivotal ceiling — driven by a confluence of Supertrend, Stochastic overbought and the R1 pivot, with the $1,856 band scoring 93/100 on BB Upper and Keltner Upper. To the downside, our engine grades the $1,784 support at 74/100, anchored by the SMA 50 and MACD cross. With spot at $1,801.87 and RSI at 57.98, ETH sits pinned just beneath resistance. Derivatives read constructive: funding holds mildly positive at 0.0026%, open interest near $6.86 billion, and a 1.64 long/short ratio (62.2% long). Yet a Fear & Greed reading of 26 signals a jittery, bear-market-leaning mood. A daily close above $1,807 opens $1,856; losing $1,784 invalidates the bullish case.