What is curtailment?
Curtailment is a miner switching off, or turning down, on request or by choice, usually when power is scarce or expensive.
How it works
Mining can stop within seconds and restart without damage, so grid operators and utilities pay miners to do it through demand response programs. Miners also curtail on their own when the power price exceeds what the machines earn.
Why it matters
Payments and credits for curtailing lower a site's effective power cost. Uptime figures in a hosting contract should say how curtailment hours are counted.
Related terms
All terms: the Bitcoin mining glossary.
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