RWE Npower’s strategic business development manager, Cogen & Generation Services’ Graeme Dawson said at a recent event on energy storage that the signals from the system operator are “valuable” to other market players in determining the likely costs of ancillary services in the future.
Dawson said that the Transmission System Operator (TSO) National Grid is “still learning” from the last 12 months about the effect of embedded generation on the system and how forecastable it is.
But he said the development of energy storage would be boosted by concrete signals from the TSO on the size of the frequency response market in the future.
National Grid is currently tendering for a new frequency response service to improve the management of the system frequency.
It said it has received an “overwhelming response” to its call for expressions of interest totalling 1370MW for the 200MW of capacity on offer.
The service requires a response in under a second which is currently only achievable by battery storage technology.
National Grid said it plans to finalise tendering in April.