Some low hanging fruit would include:
Water sources. Reclaim, anything needing 24/7 source. Use pumped water to power or use power for pumps to power miners.
Downward open channel slurry flow. Put a paddlewheel type setup and use kinetic energy of slurry to power miners.
Using miners to produce heat for processes that are heat dependent. This also includes personnel facilities (buildings and living quarters).
Miners can also incentivize the need keep maintenance preventative and short depending on mine plans and cycles.
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