Direct expenditure by the House of Commons authorities on electricity during the last five years has been:
£000 2004-05 930 2005-06 1,273 2006-07 1,709 2007-08 1,428 2008-09 1,929
The increase in costs over the period is largely due to the increased unit cost of electricity: consumption in 2008-09 was slightly lower than in 2004-05, with some fluctuation in the years in between.
The above figures do not include electricity charges for some leasehold buildings (4 Millbank, 7 Millbank and Queen Elizabeth II Conference Centre) on the Commons part of the parliamentary estate as these are met by the landlord and not separately recorded.