The number of cycles occurring in each second in an Alternating Current (AC)Utilised by most GW-scale Power Systems globally, Alternatin... Click for more electric system, which is measured in Hertz (Hz). In a system dominated by conventional Synchronous GenerationA Generation Plant which is directly connected to the Power ... Click for more, the process of instantaneously balancing SupplyThe total amount of Electricity supplied by one, many or all... Click for more with DemandThe electricity needed at a point in time, expressed as kilo... Click for more is a key means of maintaining Frequency.