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Security of Supply

That is quite a serious point, and it is not an unreasonable one. Markets, in my view, serve the interests of energy extremely well, but inevitably there are issues of security, spare capacity and the ability to swap from one commodity to another which markets cannot always automatically do as quickly as consumers desperately need them to. The interrelationship between the state and a free market is crucial for that and also for the investment climate in which people take long-term decisions. That question should be in the review, and we will look at it sensibly and responsibly, as the hon. Gentleman implied.