Editorial: Better lighting for less energy
Abstract
Editorial: Better lighting for less energy SAGE Publications, Inc. 201110.1177/1477153511410615 © The Chartered Institution of Building Services Engineers 2011 The Chartered Institution of Building Services Engineers PeterBoyce Like many things, lighting installations dete- riorate with age. Light sources fail, luminaires get dirty and controls fall into disuse. This decay continues until someone finds the lighting unacceptable. It is at this point that decisions have to be made. Should the light- ing be restored to its original state by replacing failed light sources, cleaning lumi- naires and recommissioning controls or should something different be provided? The answer to this question will depend on what a change has to offer. What is on offer can be considered as the balance between the bene- fits accruing from the change and the costs and disruption involved in carrying out the change. The ideal change is one in which there are increases in user satisfaction and energy savings while the costs and disruption are minimal. There is a clear need to improve existing lighting installations if carbon emission tar- gets are to be met. This makes the question of whether to maintain or change existing light- ing installations one of some significance. Of