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Energy Supply

Department for Energy and Climate Change written question – answered on 4th March 2016.

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Photo of David Anderson David Anderson Opposition Whip (Commons)

To ask the Secretary of State for Energy and Climate Change, how many of gigawatts of diesel generating capacity the National Grid has on standby for demand spikes; whether her Department is planning for more diesel generation to be so available; and if she will make a statement.

Photo of Andrea Leadsom Andrea Leadsom The Minister of State, Department of Energy and Climate Change

National Grid currently has approximately 0.6GW of diesel generation contracted in Short Term Operating Reserve – STOR - the key balancing service used to manage fluctuations in demand.

STOR is procured by National Grid and Government is not involved in this process. However, Government is aware of concerns regarding the growth of diesel generators, and with this in mind Defra will consult later this year on options which will include legislation that would set binding emission limit values on relevant air pollutants from diesel engines.

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