Ethereum’s Node Map: 40% of Full Nodes Sit With Three Cloud Hosts as Power Draw Hits 0.90 MW
CCAF data shows Ethereum's energy footprint down 99.9%+ post-Merge, but 62% of full nodes cluster in four countries and three hosts control ~40% of infrastructure.
Ethereum’s full-node map is the more actionable data point in the Cambridge Centre for Alternative Finance’s (CCAF) latest network report, even as the headline figure — annualized power draw of 7.87 gigawatt-hours, down over 99.9% from the pre-Merge proof-of-work baseline of roughly 2.4 gigawatts — continues to dominate coverage. As of May 2026, 62% of the network’s roughly 8,522 observable full nodes sit in just four countries: the US (31%), Germany (16%), Finland (8%) and France (6%).
Hosting concentration is the structural risk flag
Operator-level data sharpens the picture: 64% of nodes run in cloud or enterprise environments versus 36% on home setups. Three providers — Hetzner (15.4%), Amazon Web Services (12.8%) and OVHcloud (11.6%) — together host roughly 40% of all full nodes.
Client software diversity is similarly thin. Geth and Nethermind together run about 79% of execution-layer nodes, a concentration that raises questions around simultaneous-outage or regulatory-pressure scenarios hitting a small set of hosting firms or client teams.
Energy and emissions data
CCAF built its 7.87 GWh estimate from real-world power measurements across 20 client configurations, translating to a continuous draw of 0.90 megawatts and roughly 2.37 kilotons of CO2-equivalent emissions annually — a 99.98% reduction versus the pre-Merge baseline. For scale, the report compares this to about 3.5 round-trip Boeing 747 flights between London and New York, or the annual energy use of roughly 900 UK households.
Benchmarked against traditional banking infrastructure — data centers, branches and ATMs, estimated at around 260 terawatt-hours per year — Ethereum’s current draw is less than one thirty-thousandth of that figure. Weighted average power per node sits near 105 watts, with light home nodes at a median 18 watts against enterprise workstations closer to 152 watts.
On the source mix, CCAF estimates 56.4% of Ethereum’s electricity comes from sustainable sources — 39.4% renewable and 17% nuclear — above the global grid average, though natural gas remains the single largest input at 27.7%.
Staking supply and treasury flows
On-chain figures cited alongside the report show roughly 40.3 million ETH staked as of July 10, equal to about 33% of circulating supply — the collateral base underpinning the consensus layer that the efficiency gains above are built on.
Institutional accumulation continued in parallel: treasury firm BitMine bought an additional 20,500 ETH from Galaxy Digital, taking its holdings to approximately 5.742 million ETH as of end-June. That position puts BitMine at roughly 95% of its stated target of controlling 5% of Ethereum’s total supply, a data point worth tracking against any future node or client diversification metrics from CCAF.
Read more: Ethereum Tokenized Equities Outpace Treasuries 40x, Hit $1.85B in 30 Days