7.Regional sizing of reserve capacityU.K.
7.1Regional coordination centres shall calculate the reserve capacity requirements for the system operation region. The determination of reserve capacity requirements shall:U.K.
(a)
pursue the general objective to maintain operational security in the most cost effective manner;
(b)
be performed at the day-ahead or intraday timeframe, or both;
(c)
calculate the overall amount of required reserve capacity for the system operation region;
(d)
determine minimum reserve capacity requirements for each type of reserve capacity;
(e)
take into account possible substitutions between different types of reserve capacity with the aim to minimise the costs of procurement;
(f)
set out the necessary requirements for the geographical distribution of required reserve capacity, if any.