Bitcoin Mining Energy — Efficiency, Renewables and the UK Angle

"Bitcoin boils the ocean" is the lazy version of the story. The interesting version is about where mining energy comes from, how efficiency incentives work, and the genuinely clever things being done with the heat.

Why mining chases cheap energy

Miners are electricity-price buyers; they migrate to stranded and surplus power (hydro surplus, flared gas, over-built solar) because that's where profit lives. The incentive is toward energy that would otherwise be wasted.

Efficiency is the business model

Hardware efficiency (joules per terahash) improves every generation; inefficient machines get unplugged. No sentiment, just maths.

Heat reuse

Miners in Scandinavia and North America heat homes, pools and greenhouses with exhaust heat. A mining rig is a space heater that pays you back.

What it means for UK readers

UK residential electricity is too expensive for home mining to be profitable — it's a learning exercise, not an income.

If you care about green Bitcoin

Some pools and services market renewable-sourced mining certificates — the concept is sound, but verification varies.

For more, see our mining hub and our node hub.

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