§ Mr. John H. Osbornasked the Secretary of State for Energy what length of summer time in a year, indicating possible dates, would bring about the most economic use of energy in industry, the home and transport, respectively, and in total.
§ Mr. EadieTime systems do not have a major effect on energy consumption. The changes of one hour in March and October, which have been the practice in recent years, have been associated with a change, downward in spring and upward in the autumn, of perhaps 1 per cent. in daily electricity consumption, though there is considerable uncertainty48W about this estimate. A breakdown of this figure between industry and domestic consumption is not practicable and no estimates are available of the effects of making changes at other dates or of the effects on transport. It is also necessary to bear in mind the many other important consequences of major changes in time systems.