silly definitional Q: a megawatt is a unit of power, not energy. are you looking for 1 MW of peak power output over an arbitrary time period (e.g. 1 MJ delivered in 1 sec, 1 J delivered in 1 usec, etc) or did you mean to write a more conventional unit of energy like a MWh?

@pyrylium a continuous electricity supply of at least 1 megawatt for at least 1 hour