The circumstances set out in this section are where the electricity is—
generated using the original capacity of an onshore wind generating station—
which was accredited during the period beginning with 1 April 2017 and ending with 31 March 2018,
in respect of which the approved development condition is met, and
in respect of which the grid or radar delay condition is met, or
generated using additional capacity of an onshore wind generating station, where—
the station was accredited on or before the onshore wind closure date,
in the Authority's view, the additional capacity first formed part of the station during the period beginning with 1 April 2017 and ending with 31 March 2018,
the approved development condition is met in respect of the additional capacity, and
the grid or radar delay condition is met in respect of the additional capacity.