Preliminary data from the University of Cambridge suggests that hydropower has overtaken natural gas as bitcoin mining’s largest energy source, a shift that, if confirmed, would reshape how the industry’s power mix is discussed. The dataset is described as preliminary and may be revised before any final figures are published.
KEY POINTS
- Preliminary Cambridge data indicates hydropower has moved ahead of natural gas as bitcoin mining’s top energy source.
- The figures are early-stage and could change once Cambridge finalizes its dataset.
- A change in the leading energy source could influence how mining’s environmental footprint is debated.
What the preliminary Cambridge data appears to show
The core finding, as reported by The Miner Mag, is that hydropower now ranks as the single largest energy source used by bitcoin miners, moving ahead of natural gas in the ordering of the mining energy mix. For related coverage, see SoSoValue: U.S. Spot Bitcoin and Ethereum ETFs See July 24 Outflows.
The comparison rests on Cambridge’s ongoing work tracking bitcoin’s energy consumption, published through its Cambridge Bitcoin Electricity Consumption Index. The underlying figures are explicitly preliminary, meaning the ranking could shift as the data is reviewed and finalized. For related coverage, see U.S. Spot Bitcoin ETFs See $225M Outflows, Ether Adds $26M.
Because the numbers have not been finalized, the shift should be read as an early signal rather than a settled conclusion. Readers should watch for updated or finalized figures in Cambridge’s forthcoming digital mining industry report before treating the change as permanent.
Why a hydropower-led energy mix matters for the mining debate
A change in bitcoin mining’s top energy source is significant because energy composition often sits at the center of public and policy debates about the network. Hydropower and natural gas carry very different implications in those discussions, and the leading source shapes how the industry’s footprint is characterized.
The framing matters for miners’ public image at a time when operators are weighing power costs against other uses of their infrastructure, including the pivot some firms are making toward AI data center revenue over bitcoin mining. It also arrives as the network’s hashrate has climbed past one zetahash per second, keeping total energy demand in focus.
Cambridge’s mining figures follow its earlier work on other networks, including a report on Ethereum’s power use after the Merge, underscoring the group’s role as a reference point for crypto energy data.
A shift in the leading energy source is not the same as a broad verdict on mining sustainability. Alexander Neumueller, who leads Cambridge’s digital assets work, has noted the interplay between rising power use and a greener energy mix, a distinction that separates the energy-source ranking from wider claims about the network’s overall environmental impact.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.