reg 2A Aggregation
(1) For the purpose of these Regulations, two or more new medium combustion plant must be treated as a single medium combustion plant (“the combined plant”), and their rated thermal input added together for the purpose of calculating the total rated thermal input of the combined plant, where— (a) the waste gases of the combined plant are discharged through a common stack; or (b) taking into account technical and economic factors, the waste gases of the combined plant could, in the opinion of the Secretary of State, be discharged through a common stack. (2) Paragraph (1) applies regardless of whether the total rated thermal input of the combined plant is equal to or greater than 50 megawatts, unless Chapter III of the 2010 Directive applies to the combined plant.