26.—(1) This article applies for the purposes of this Part.
(2) In any month where the total installed capacity of a generating station does not include any excluded capacity, “RO input electricity”, in relation to that station, means the total input electricity of the station during that month.
(3) Subject to paragraphs (4) and (5), in any month where the total installed capacity of a generating station includes excluded capacity, the “RO input electricity” of the station is equal to
(a)A is the total input electricity of the station during that month,
(b)B is the total installed capacity of the excluded capacity, and
(c)C is the total installed capacity of the station.
(4) Subject to paragraph (5), in any month where the total installed capacity of a generating station includes excluded capacity and electricity which is used by the station solely for purposes directly related to the operation of the excluded capacity is measured separately from the remainder of the electricity used by the station, the “RO input electricity” of the station is equal to
(a)A is the total input electricity of the station during that month, and
(b)D is the total amount of electricity measured as being used by the station solely for purposes directly related to the operation of the excluded capacity during that month.
(5) In any month where—
(a)the total installed capacity of a generating station includes excluded capacity,
(b)all of the electricity which is used by the station for purposes directly related to the operation of the RO capacity is measured separately from the remainder of the electricity used by the station, and
(c)the station does not generate electricity wholly or partly from hydrogen (other than hydrogen that constitutes fossil fuel),
in relation to that station, “RO input electricity” means the total amount of electricity measured as being used by the station for purposes directly related to the operation of the RO capacity during that month.
(6) In this article, references to electricity used by a generating station for purposes directly related to the operation of excluded capacity or RO capacity include electricity used for those purposes whether or not the electricity was generated by the station or used while the station was generating electricity.
(7) In this article, “operation” includes fuel handling, fuel preparation, maintenance and the pumping of water.