Low Carbon successfully secured two energy storage contracts in the National Grid’s recent Enhanced Frequency Response (EFR) tender process. The tender process which was held in July 2016 saw National Grid procured 200MW of enhanced frequency response.
EFR is a service that allows rapid (sub-second) response times to grid frequency or price signals resulting in potentially significant cost saving for National Grid. National Grid defines EFR as: a service that achieves 100% active power output at 1 second (or less) of registering a frequency deviation… EFR is a new service that is being developed to improve management of the system frequency pre-fault, i.e. to maintain the system frequency closer to 50Hz under normal operation.