§ Mr. RowlandsTo ask the Secretary of State for Energy when his Department last surveyed the energy efficiency of the lighting of his Departments buildings; and what were the conclusions.
§ Mr. ParkinsonMy Department regularly monitors the efficiency of the lighting in our main building where we are the principal tenant; savings attributable to this cannot be identified separately from the overall savings in electricity consumption, which are 7 per cent. in 1986–87.