§ Mr. Rostasked the Secretary of State for Energy (1) if he has made any estimate of the proportion of the reduced consumption of primary energy since the launching of the conservation campaign due to orders made under the Fuel and Electricity (Control) Act;

(2) if he has made any estimate of the proportion of the reduced consumption of primary energy since the launching of the conservation campaign attributable to the Electricity (Advertising Lighting) (Control) Order;

(3) if he is yet able to estimate what proportion of the reduced consumption of primary energy since the launching of the conservation campaign is attributable to lower industrial production, to climatic conditions, to higher energy prices, and to a reduction in waste, respectively.

§ Mr. EadieThe orders made relate to temperature limits for the heating of commercial buildings and to the outdoor lighting of advertisements during the hours of daylight. In neither case has the total 763W effect been subjected to direct measurement, and to do so would represent a task of considerable magnitude which could not be justified under present financial circumstances. The total effects of these measures would in any case not be large enough to be of statistical significance in total consumption data where their relatively small effect would be swamped by the general margins of error and variability inherent in such data.