Terawatt

Noun

1. One million million (10) watts, an amount of power large enough to power an entire region with many cities. (Consuming 1 terawatt during a duration of 1 hour consumes 1 terawatt-hour of energy.)<!--This concise explanation of how watts relate to watt&#x2D;hours (e.g., KW to KW·h, MW to MW·h) is worth showing here because it is an FAQ among the general public, who demonstrate perennial difficulty in conflating the two.-->.

   "As of 2025, it was estimated that all of the power stations on Earth were collectively generating about 15 terawatts at any given instant."