ABSTRACT
In April 2006, Part L of the Building Regulations (England and Wales) was revised in order to raise energy performance standards and to reduce CO2 emissions from buildings. Part L, Conservation of Fuel and Power, now requires all new and existing buildings to be given an energy rating and for all new buildings to meet a minimum level of energy effi ciency. Under this provision the electrical contractor must make ‘reasonable provision’ to provide lighting systems with energy-effi cient lamps and suffi cient controls so that electrical energy can be used effi ciently. The current provision requires one energy-effi cient luminaire for every 25 m2 of fl oor area or one energy-effi cient luminaire for every four fi xed luminaires.
