Ethiopia slashes BTC mining power by 75%

TLDR

Ethiopia has sharply reduced electricity to Bitcoin (BTC) miners, cutting their contracted power by around 75% as hydropower output drops.

1. The state utility now delivers only about 23% of miners contracted power after El Nio reduced water inflows into key dams.
2. Bitcoin miners had grown to consume nearly one third of Ethiopias electricity and generate roughly 35% of utility revenue, but households and factories are being prioritized.
3. Global Bitcoin hashrate impact is limited for now, but the move tests the long term reliability of hydro powered mining hubs and will be reassessed in October.

Deep Dive

1. Scale And Cause Of The Power Cuts

Ethiopian Electric Power (EEP) has reduced electricity supplied to Bitcoin miners to just 23% of their contracted levels, after initially cutting to 75%, then 50%, as reservoir inflows fell about 20 percent due to El Nio driven dry conditions. Reports note that hydropower provides roughly 95% of Ethiopias electricity, and water levels are tracking well below expectations, forcing the utility to ration power to protect public supply. EEPs CEO, Ashebir Balcha, has framed the cuts as a pre emptive, seasonal measure, with a formal reassessment planned in October, rather than a declared permanent exit from crypto mining.

Confidence: high, based on consistent reporting from multiple outlets citing EEPs CEO.

2. How Important Ethiopia Is To Bitcoin Mining

Over the past few years, cheap Ethiopian hydropower attracted international miners, and by 2025 data mining reportedly consumed nearly one third of the countrys electricity and generated about 35% of EEPs revenue. Estimates put Ethiopias share of global Bitcoin hashrate near 2 to 3 percent, meaning the network as a whole remains secure even if Ethiopian output contracts. Locally, however, mining one Bitcoin can use millions of kilowatt hours, equivalent to the annual electricity consumption of many thousands of Ethiopian households, and roughly half the population still lacks grid access, strengthening the political case for prioritizing homes and manufacturers over mining.

3. Broader Lessons And What To Watch

This episode highlights a key trade off in green Bitcoin mining. Hydropower keeps emissions low, but water dependent generation can be unreliable during climate affected weather patterns, turning cheap energy into a curtailment risk. Miners in Ethiopia now face contract violations on power guarantees, potential further cuts, and talk of restricting electricity exports, while some global mining firms are already diversifying into AI and high performance computing workloads to monetize their infrastructure.

Conclusion

Ethiopias 75% reduction in power supplied to Bitcoin miners is a local energy shock with global symbolic weight. It shows that even low carbon mining strategies can face abrupt constraints when water levels fall, pushing miners to reassess geography, energy mix, and alternative uses for their hardware. For now, Bitcoins network remains robust, but the event underlines that energy policy and climate patterns are becoming core variables in mining economics, not just background noise.