MWhe

MWhe stands for megawatt-hours of electricity. The notation MWhe is used to indicate the energy quantity in electrical form, as distinct from energy delivered as heat or other forms. In practice, 1 MWhe equals 1,000 kilowatt-hours, or 3.6 gigajoules.

The suffix e clarifies that the energy is electrical; alternate spellings include MWh_e or MWh(e) in some standards and reports. In many energy accounting and optimization contexts, MWhe is used to avoid ambiguity with other energy carriers and with power units.

Applications: It is used to quantify production or consumption over a period. If a generator outputs a constant 50 MW for 4 hours, it produces 200 MWhe of electrical energy. It is also used in life-cycle assessments, dispatch modeling, and market settlement where energy must be distinguished from capacity or instantaneous power.

Relation to other units: 1 MWe is a unit of instantaneous electrical power (megawatt electrical) rather than energy. MWh (or MWh_e) is the energy unit; MWhe is simply a notation used in some contexts to emphasize electrical energy.

Note: While MWhe is common in electrical engineering and energy economics, the base SI unit for energy is the joule; MWh is an accepted energy unit, and MWhe is a practical notation used in reporting and modeling to denote electrical energy.