RENEWABLE ENERGY POWER PLANT FAST FREQUENCY RESPONSE

Aspects of the present invention relate to a method of controlling a renewable energy power plant connected to a power network. The renewable energy power plant comprises one or more renewable energy generators having an active power reserve for supplying additional active power to the power network and an energy storage system having an active power store. In response to detecting a frequency event on the power network a power sequence is implemented to manage the additional active power contributions from the energy storage system and the one or more renewable energy generators to satisfy the active power request.