MWe meaning

MWe (megawatt electrical) describes the electrical power output of a generating unit or plant, used to state generation capacity and performance in energy contracts and regulatory documents. It is a descriptive technical term rather than a defined statutory concept; UK and Irish legislation and market rules typically refer simply to megawatts (MW). 1 MWe equals one megawatt (1,000 kW) of electrical power. In practice, MWe is used in power purchase agreements, EPC and O&M contracts, grid connection offers, generation licences, project finance documents, capacity market and contract for difference schedules, and planning and consenting materials. Parties should specify whether figures are gross MWe (at generator terminals) or net MWe (after auxiliary consumption and losses) and identify the measurement point and test conditions, as these affect performance guarantees, availability calculations, liquidated damages and credit metrics. MWe is distinct from MWth (megawatt thermal), which measures heat output (common in nuclear and CHP contexts). Because statutes and codes often use MW without the “e”, confirm whether a reference is intended to be electrical output and whether net or gross. Usage and meaning are broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland.