German Home- page of Annex 36 Homepage of the International Energy Agency (IEA-ECBCS)		Hadley Junior School, Telford   Address Hadley Junior School Crescent Road, Hadley Telford, Shropshire TF1 4JU United Kingdom Year of construction 1973 Year of renovation 2000 Total floor area 1398 m² Number of pupils 230 Number of classrooms 8 Typical classroom 41 - 62 m² 29 pupils The main aim of the project was to reduce energy bills but the school head, Mike Jones, is a committed environmentalist and therefore the potential to achieve environmental benefits at the same time provided an additional motivation. The possibility of improving the insulation to the school buildings was considered but the payback period for this was not viable. However the electricity bills were more than double the heating bills and the quality of the existing lighting was poor. Therefore attention was turned to energy efficiency improvements to the lighting, which were found to be cost effective. Retrofit features: The lighting was redesigned using surface mounted 58 Watt, high frequency fittings with prismatic diffusers, reducing the lighting load from 24.4 kW to 9.71 kW. At the same time, the opportunity was taken to rewire the lighting circuits and lighting controls were also incorporated. The project was completed in 2000.   total report as pdf-download in English   © 2004 Fraunhofer Institute for Building Physics