28(1)If the facilities owned and operated by an eligible large industrial enterprise are not capable of generating a sufficient amount of eligible electricity that, if sold to the Corporation in accordance with the Program, would result in a reduction in the cumulative cost of firm electricity by the target reduction per cent for all of the eligible facilities owned and operated by the eligible large industrial enterprise, the Corporation may alter the eligible facilities’ contracted supply mix that was in place immediately before the eligible large industrial enterprise’s participation in the Program by decreasing the proportion of firm electricity and increasing the proportion of interruptible electricity.