Bitcoin Miners Turn to Renewable Energy as Profit Squeeze Bites

Bitcoin miners are doubling down on renewable energy—not just for ESG optics, but to survive a brutal margin squeeze. A new Cointelegraph report says operators are “turning to renewable energy” as hashprice hovers near record lows, with recent examples spanning solar in Texas, hydro in Ethiopia, and wind-powered deployments slated for West Texas. The piece frames the shift as an urgent cost play after 2024’s halving and rising competition.

Why miners are moving to green power now

Power is a miner’s lifeblood; cheaper electrons extend the runway when revenue per unit of compute drops. In the past month:

• Solar + mining behind the meter (Texas). Sangha Renewables energized a 19.9 MW bitcoin mining center in Ector County that taps a 150 MW solar farm—buying energy before it hits the grid and curtailing when prices spike. That flexibility is tailor-made for mining’s interruptible loads. 
• Hydro (Ethiopia). Abu Dhabi–listed Phoenix Group launched a 30 MW hydropower-backed site in Addis Ababa, in partnership with state utility Ethiopian Electric Power—a sign of miners chasing low-cost, greener baseload in new regions. 
• Wind (Texas). Canaan is partnering with Soluna to deploy 20 MW of Avalon miners at Soluna’s Project Dorothy in wind-rich Briscoe County, with initial deployments beginning around early 2026.

The regional backdrop helps: in Texas, solar has grown so quickly that 2025 is set to be the first year solar generation overtakes coal on ERCOT’s grid—expanding the pool of cheap daytime power. 

The squeeze in one chart: hashprice

Hashprice—the expected USD revenue per petahash per day—is the miners’ north star. After April 2024’s reward cut, hashprice cascaded lower through the autumn. Luxor’s Hashrate Index logged all-time lows near $35/PH/day on Nov. 22, with recent prints hovering in the high-$30s. CoinDesk likewise flagged five-year lows in mid-November. As of early December, weekly check-ins show hashprice oscillating ~$36–$39/PH/day. That’s the zone where many fleets flirt with breakeven.

Put differently: even efficient rigs need very cheap power (and strong fee markets) to make the math work.

What renewables solve—and what they don’t

Lower marginal power costs: Long-term deals with solar, wind and hydro can undercut grid spot prices, especially behind the meter or in curtailment corridors where power would otherwise be wasted. Texas miners with demand-response agreements can also earn power credits by shutting down at peak times, reducing their all-in energy costs. Riot, for example, discloses how ERCOT curtailment credits offset invoices under fixed-price PPAs. 

Volatility, still real: Green power can be intermittent, curtailment credits vary by season, and not every site wins cheap transmission or tariff treatment. The economics can flip quickly. Case in point: Tether suspended its new Uruguayan mining venture in late November, citing uncompetitive electricity tariffs and rising energy costs, laying off most local staff. Renewables proximity isn’t a guarantee of miner-friendly rates.

Has the network “gone green”?

It’s complicated. Industry surveys often cite a majority “sustainable” mix, but Cambridge’s 2025 analysis estimated ~37.6% of Bitcoin mining’s energy came from sustainable sources—lower than self-reported figures. Either way, the direction of travel is clear: economics are pushing miners toward cheap low-carbon power, and toward interruptible load contracts that pair well with wind and solar.

A quick tour of the new buildout

• West Texas solar (Ector County). The Sangha site buys the first 20 MW from a neighboring 150 MW solar farm “off-grid,” then goes idle when price signals flip. That model soaks up surplus generation—good for the farm’s revenue and the grid’s balance. 
• Ethiopia hydro. Phoenix Group’s 30 MW deployment rides cheap hydropower and growing generation capacity—arriving the same season Ethiopia officially inaugurated the GERD mega-dam, underscoring why miners see long-term hydro upside in the country. 
• Texas wind colocation. Soluna + Canaan’s 20 MW agreement taps consistent West Texas wind and modular data-center design, aligning mining’s flexible load with variable generation. 

Why the squeeze may persist

Even with greener power, miners face two structural headwinds:

1. Rising difficulty / hashrate. More machines chasing the same 3.125 BTC subsidy per block means revenue per PH naturally trends down. Luxor shows BTC-denominated hashprice halved post-halving, with difficulty and hashrate near highs for much of Q4. 
2. Fee variability. Lightning-rod moments (congested mempools, popular mints) spike fees, but average fee income has been choppy—making it hard to plan around a stable uplift. Recent weekly wraps highlight only modest fee help. 

How miners are adapting beyond power contracts

• Hardware efficiency. Public miners continue cycling into sub-20 J/TH rigs and experimenting with immersion/hydro-cooling to lower joules per terahash. (Examples include fleet-efficiency disclosures from large U.S. miners.) 
• Flexible operations. ERCOT-style demand response pays miners to power down, effectively turning hashers into a grid-balancing tool and subsidizing power costs when prices spike. 
• Geographical arbitrage. Ethiopia’s hydro, MENA’s subsidized or surplus power zones, and North American wind/solar pockets are all part of a global hunt for sub-5¢/kWh economics. Recent hydro and wind announcements speak to that migration.

Conclusion

The profit squeeze isn’t theoretical—hashprice spent November at or near record lows, and it’s still skimming the high-$30s/PH/day band. That’s forced miners to get creative: behind-the-meter solar, hydro baseload deals, wind colocation, and curtailment credits to shave cents off every kilowatt-hour. Some projects, like Tether’s aborted Uruguay effort, show that policy and tariffs can still wreck the math—while success stories in Texas and Ethiopia highlight where renewables + flexible load do work. The race, for now, is to secure cheap, reliable, and interruptible power faster than the network’s difficulty can erase those savings.