The Government, National Grid and Ofgem are taking co-ordinated short and medium-term actions to ensure that, as capacity margins are likely to tighten in the middle of the decade, any risks to security of supply are minimised.
National Grid already has capacity available through the Short-Term Operating Reserve to keep the system in balance. This capacity is there as back-up in the case of unexpected events.
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In the medium-term, the Government are legislating for a Capacity Market, which will deliver capacity from 2018-19, subject to state aid clearance. This will help drive the new investments we need to ensure sufficient capacity is available.