To ask the Chancellor of the Duchy of Lancaster what estimate he has made of (a) the number of computer devices left on overnight in his Department when not in use and (b) the cost per year of leaving computer devices on overnight when not in use in each of the last five years; and if he will make a statement. (217859)

As part of the Department's continuing sustainable development programme, we use software tools on the corporate IT network to remotely switch off overnight all desk top computers that are logged off but are not switched off. All staff are instructed to switch off their computers and monitors when not in use; this software supports this instruction. Statistics are not collated on those computers left switched-on.