Paragraph C.1
The exemption granted by this Order to persons falling within Class C shall cease to be in force in relation to any person—
(a)
on 31st March 1995; or
(b)
before that date if the aggregate of the declared net capacities of all the generating stations at which that person generates electricity becomes greater than the aggregate of the declared net capacities of the generating stations at which he was generating electricity on 31st March 1990.