Energy Conservation in Industrial Lighting

Abstract

In order to reduce energy use in lighting Union Carbide recently issued drastically reduced new lighting level standards. A computerized lighting cost program was also developed. Using this program a number of additional energy saving techniques were identified. Savings in power and cost were quantified for typical examples as follows: Task lighting, high light source efficacy, high luminaire mounting height, efficient luminaires, surroundings painted a light color, regular luminaire cleaning, use of natural light, and turning off lights when not in use. In addition energy can be reduced by improving the quality of light. This is done through improved contrast, sufficient size of task, minimal direct and reflected glare, and reduced shadows. Visual examples are given.