To ask the Secretary of State for Wales how much (a) electricity and (b) gas was used on his Department's estate in each year from 2004-05 to 2008-09. (280529)

Electricity usage for the years 2005-06 to 2008-09 is displayed in the following table. These figures relate to my Department's main London building.

The figures for 2004-2005 cannot be provided without incurring disproportionate cost. For my Department's leased office space in Cardiff, energy costs are included in the fixed annual service charge and cannot be given as a specific component.

The sole use of gas in the Wales Office estate is for heating the main London building. This is provided by the Whitehall District Heating System and figures specific to the Wales Office cannot be calculated.

To ask the Secretary of State for Wales how much was spent on energy efficiency measures for his Department's estate in each year from 2004 to 2009; what assessment has been made of the effectiveness of that expenditure; and what plans he has for future energy efficiency measures. (280540)

The Wales Office has a very small estate, consisting of a main building in London and serviced office space we lease in Cardiff.

The Department's main building is Grade 2 listed and consequently we are limited in the in the work we can do. There has not been any direct spending since 2004 on works specifically to improve energy efficiency, although when undertaking any maintenance or building work we take energy efficiency into account.

We are now working on a Sustainable Development Plan, which will include further steps to improve energy efficiency.

To ask the Secretary of State for Wales which official is responsible for the energy efficiency of his Department's estate. (280550)

The Wales Office is committed to energy efficiency and all staff appreciate that they have a role to play in this and in wider environmental and sustainability issues. For example, staff switch off computer equipment and lights at the end of each day. The Department's approach and strategy is managed by the Corporate Services Branch.