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Energy Supply: Security

Volume 497: debated on Tuesday 13 October 2009

To ask the Secretary of State for Energy and Climate Change against what numerical measures of security of supply of (a) gas and (b) electricity his Department collects information. (289874)

The Department of Energy and Climate Change collects numerical information relating to gas and electricity security of supply. The data are available on an annual basis in DUKES (Digest of UK energy statistics). Quarterly and monthly data are also available at the following websites (where the corresponding tables in DUKES can also be found).

The key tables in DUKES are as follows:


UK gas production and imports: Table 4.3

Origin of imports: Table 4.5

Capacity of gas storage sites: Table 4.4

Gas consumption in the UK: Table 4.2


Fuel mix used in electricity generation: Table 5.6

Plant capacity: Table 5.7

Plant load factors and maximum demand: Table 5.10

Electricity consumption in the UK: Table 5.2

The Department also releases information relating to energy consumption by sector and end use; these data are available from the Energy Consumption in the UK section of the Departments website at:

In addition, the Department receives information from National Grid on electricity generation and network capacity and on gas flows and capacities which are referred to in Energy Markets Outlook.