Power purchase agreement is a specific Mining coordinate in the Bitcoin knowledge graph. In practical terms, it identifies the subject described here: A contract defining electricity price, volume, duration, delivery and curtailment terms between a generator and buyer. This definition is narrower than promotional usage and should be read together with the implementation, date and evidence attached to the entry.
Power purchase agreement is best understood as part of a system rather than as an isolated definition. Its related coordinates show the mechanisms, incentives and historical records that give the term practical meaning.
Power purchase agreement sits between protocol rules, economic incentives and software operated by independent participants. In Bitcoin, no component is authoritative by itself: miners propose history, fully validating nodes enforce validity, and users decide which rules and software they accept.
Understanding Power purchase agreement helps distinguish a verifiable Bitcoin mechanism or historical record from slogans, products and market narratives.
Primary or authoritative records make these details checkable: a power purchase agreement defines delivery point, quantity, price, term, curtailment, credit support and environmental attributes between generator and buyer; mining load may be buyer or flexible offtaker. They should be verified before using the coordinate in analysis.
The practical limit is: a PPA is not proof of physical renewable consumption, cheap power or emissions reduction; grid mix, certificates, congestion, imbalance, counterparty and additionality require separate evidence. A definition, office, chart pattern or published claim is not by itself a prediction or Bitcoin consensus rule.
For the clearest picture, read this entry together with Grid-connected mining, Energy arbitrage, Mining curtailment, Bitcoin. The reverse links also lead from Energy arbitrage, Behind-the-meter mining, Grid-connected mining, Mining hedging.