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 Secretary of State for Culture, Media and Sport what (a) voltage optimisers and (b) equivalent technologies are used within buildings occupied by his Department. (324979) Mr. Sutcliffe Share this specific contribution Share a link to this specific contribution: Share contribution 3 on Twitter Share contribution 3 on Facebook Share contribution 3 via Email Copy link to contribution 3 to clipboard Copy link The Department has two 830kVA powerPerfector units.