A power purchase agreement, or PPA, is a contract that lets an organization buy electricity from a named generator for a fixed period, often years or decades. In practice, PPAs are used to lock in supply, price, and often the renewable source behind the electricity. For data centers and other critical facilities, this is more than a finance tool: it is part of the power model that keeps services running predictably.
In cyber security, PPAs matter because availability is a core security goal. A secure system can still fail if its power strategy is weak, so operators treat electricity sourcing as part of resilience planning and third-party risk management. A PPA can support cleaner, more stable supply, but it does not replace backup generators, batteries, redundant grid feeds, or monitoring. During attacks or disruptions that affect utilities, sites with better power planning are harder to knock offline and recover faster.