27.—(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 output electricity”, in relation to that station, means the total output electricity of the station during that month.
(3) Subject to paragraph (4), in any month where the total installed capacity of a generating station includes excluded capacity and all of the electricity generated by the excluded capacity is measured separately from any electricity generated by the station using RO capacity, the “RO output electricity” of the station is equal to
(a)E is the total output electricity of the station during that month, and
(b)F is the total amount of electricity measured as being generated by the excluded capacity during that month.
(4) In any month where the total installed capacity of a generating station includes excluded capacity and all of the electricity generated by the station using RO capacity is measured separately from any electricity generated by the station using excluded capacity, “RO output electricity”, in relation to that station, means the total amount of electricity measured as being generated by the RO capacity during that month.