We are not in a position to be able to change the approach. My hon. Friend asks about the timing. The exemption would have cost around £40 million a month to maintain. Without our change, more than £150 million of support would have gone to overseas renewable generation in 2015-16, and that figure would have risen to £300 million by 2020-21. My hon. Friend asked why not follow the same timings as the exemptions for combined heat and power, but those are on a very different scale and the timing was in the context of the coming of the carbon price floor, which would support CHPs. As I said earlier, more efficient and effective schemes have come about to support renewables through the renewables obligation and contracts for difference.
The hon. Member for Kirkcaldy and Cowdenbeath (Roger Mullin) spoke about the particular impact of the measure in Scotland, but I can confirm that Scotland receives a high level of renewables support from the UK Government. In the first contracts for difference auctions, 11 out of the 25 contracts were awarded to Scottish projects, and 30% of the support provided by the renewables obligation is for schemes in Scotland. That support, as I have said, is much more significant than that offered by the CCL renewables exemption.
The hon. Member for Brighton, Pavilion asked about the Government’s green credentials, a point that came up again in an intervention. I repeat that the Government take our environmental responsibilities extremely seriously and we are absolutely committed to meeting our climate change commitments, but as cost-effectively as possible. We are making good progress, with emissions down 30% since 1990, and we are on track for 30% of electricity supply to be from renewables by 2020. At the same time, we want to help consumers, keep energy bills down and keep British business competitive. It is vital that we take careful account of the costs of our policies so that we are not imposing unnecessary burdens on households and businesses, making household bills unaffordable or putting the UK at a competitive disadvantage.