Question

To ask the Secretary of State for Energy and Climate Change, what modelling of blackstart capability of Scottish electricity systems has been undertaken by the (a) Government and (b) National Grid in relation to the potential closure of Longannet power station.

National Grid takes their obligation to secure the electricity network very seriously, continuously monitoring future generation and demand via their Future Energy Scenarios and System Operability Framework, designed to provide greater clarity on the likely system impacts of our scenarios. These include highly unlikely and extreme scenarios.

In relation to black starts, there are local restoration plans in place for Scotland which are regularly reviewed and updated. The most recent update was this year and it will be reviewed again following the award of the voltage control contract from the recent procurement exercise. The target capability for restoration after a black start is within 24 hours. Even in the case of closure of Longannet, the restoration times stay within this target, and supplies are set to be secure. We have measures in place to ensure security of supply with or without Longannet.