9.—(1) The circumstances set out in this Article are where the electricity is—
(a)generated using the original capacity of a large onshore wind generating station—
(i)which was accredited during the period beginning with 1st January 2018 and ending with 31st December 2018,
(ii)in respect of which both the approved development condition and the investment freezing condition are met, and
(iii)in respect of which the grid or radar delay condition is met, or
(b)generated using additional capacity of an onshore wind generating station, where—
(i)the station was accredited on or before 31st March 2016,
(ii)in the Authority’s view, the additional capacity first formed part of the station during the period beginning with 1st January 2018 and ending with 31st December 2018,
(iii)both the approved development condition and the investment freezing condition are met in respect of the additional capacity, and
(iv)the grid or radar delay condition is met in respect of the additional capacity.