Comparative Study of Energy Saving in Theme Based Area by Luminary Replacement Strategy

Considerable consumption of power take place at different location like corridors, class rooms, laboratories, reading halls, and conference rooms in an educational institute. Light Emitting Diode (LED) and Compact Fluorescent Lights (CFL) bulbs have revolutionized energy-efficient lighting. The powers consumed by these are significantly less than the power consumed by Incandescent bulbs or fluorescent tubes. However higher initial installation costs is a limiting factor for the replacement of present lighting with LED lamps. Although CFLs are an excellent source of energy-efficient lighting, they are not always the best choice for all lighting applications. Due to its On/Off cycling, its mercury content further CFLs are not spot lights CFLs exhibit shorter life spans in light fixtures and sockets where there is low air-flow. It is advisable to change the present lighting with LED bulbs, but the cost factor comes in to picture and hence pay back period varies depending upon the area of space where luminaries are to be replaced. This paper reports the comparison of energy saving in study hall, conference room and laboratories in an educational institute having area of 1000sqft. The spread sheet based decision making system for luminary replacement strategy is adapted for the comparison.