Gregory Barker Share this specific contribution Share a link to this specific contribution: Share contribution 1 on Twitter Share contribution 1 on Facebook Share contribution 1 via Email Copy link to contribution 1 to clipboard Copy link To ask the Minister of State, Department for Transport what (a) voltage optimisers and (b) equivalent technologies are used within buildings occupied by his Department. (324969) Chris Mole Share this specific contribution Share a link to this specific contribution: Share contribution 2 on Twitter Share contribution 2 on Facebook Share contribution 2 via Email Copy link to contribution 2 to clipboard Copy link The information requested is not centrally recorded and can be provided only at disproportionate cost.