Bitcoin Mining Energy Sources Compared — Hydro, Solar, Flare Gas & More

What powers Bitcoin mining? A comparison of energy sources — hydro, grid, flare/stranded gas, solar, wind, geothermal, nuclear and grid curtailment — by availability, relative cost, carbon and how well each suits mining. Free CSV/JSON + REST under CC BY 4.0.

Quick answer

Bitcoin mining is location-agnostic and interruptible, so it can run on energy that would otherwise be wasted or stranded — which is why miners cluster around cheap, abundant power. The big divide is AVAILABILITY: baseload sources (hydro, geothermal, nuclear) give steady 24/7 output ideal for always-on miners, while intermittent sources (solar, wind) are cheap but variable and pair best with storage or flexible, curtailment-aware operation. Dispatchable and waste sources (grid, natural-gas gensets, flare/stranded gas, demand-response curtailment) let miners act as a flexible load. This reference compares 9 energy sources by availability, relative cost, carbon and how well each suits mining.

For steady, low-cost mining, baseload hydro (the Quebec advantage), geothermal or nuclear win. For sovereignty and stranded value, flare-gas and off-grid solar+storage shine. And everywhere, treating the miner as a flexible, interruptible load — soaking up curtailed renewables or demand-response credits — turns Bitcoin mining into a grid asset rather than a grid burden.

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Energy source	Availability	Relative cost	Carbon	Mining fit	Notes
Hydroelectric	Baseload	Very low	Very low	Excellent	Cheap, abundant, steady 24/7 power — the reason Quebec (and D-Central) is a major mining region. Ideal for always-on miners.
Grid (general)	Dispatchable	Varies by region	Depends on mix	Good	The default option. Economics hinge entirely on your local rate and the generation mix behind it — see the Canadian electricity-rates dataset.
Flare / stranded gas	Dispatchable	Very low	Lower than flaring/venting	Excellent (niche)	Captures methane that would otherwise be flared or vented, turning a waste stream into hashrate and cutting emissions versus flaring. Off-grid, behind-the-meter.
Solar (PV)	Intermittent	Low (and falling)	Very low	Situational	Cheap in daylight but intermittent — pairs best with battery storage or curtailment-aware, daytime-weighted operation. Strong for off-grid energy sovereignty.
Wind	Intermittent	Low	Very low	Situational	Very low marginal cost when the wind blows; mining can absorb curtailed wind the grid cannot take, improving project economics.
Geothermal	Baseload	Low	Very low	Excellent (location-specific)	Steady, low-carbon baseload where the geology allows (e.g. volcanic regions) — the basis of national-scale mining experiments.
Nuclear	Baseload	Moderate	Very low	Good	Stable, low-carbon baseload; behind-the-meter or grid-adjacent mining can monetise steady output and provide flexible demand.
Natural gas (genset)	Dispatchable	Moderate	Moderate-high	Good	Dispatchable behind-the-meter power, common for off-grid or peaker-backed sites where grid access is limited.
Grid curtailment / demand response	Variable	Very low (often paid)	Depends on grid	Good	Mine when power is abundant and cheap, then curtail (or get paid to curtail) at peak — turning miners into a flexible, interruptible load that supports grid stability.

See D-Central’s solar node calculator, the Canadian curtailment guide, the Canadian electricity-rates dataset, and the home-mining circuit reference. Qualitative characteristics — actual cost and carbon vary by site and region.

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Last reviewed June 20, 2026.