17.—(1) For the purposes of section 32B(7) and (8) of the Act (in particular, for the purposes of a ROC certifying the matters within section 32B(7) or (8)), electricity generated by a generating station of any description is used in a permitted way if, subject to paragraph (2), it is used in any of the ways mentioned in section 32B(10) of the Act.
(2) Electricity is not used in a permitted way if—
(a)it is supplied to customers in Great Britain through a private wire network,
(b)the generating station from which the electricity is conveyed has a declared net capacity in excess of 10 megawatts, and
(c)at some point before the electricity is supplied to customers through the private wire network it is conveyed through a transmission or distribution system operated under a licence granted under section 6 of the Act.