Guidelines For Identifying Energy Saving Opportnities

1Use as much natural day light as possible by use of translucent roofing sheets.
2Use day lighting effectively by locating work stations requiring good illuminance near the windows.
3Minimise illuminance in non- task areas by reducing the wattage of lamps or number of fittings
4Avoid use of incandescent/tungsten filament lamps. The power consumed by these lamps is 80% more than the fluorescent lamps (discharge) for same lumen output.
5Use electronic ballasts in place of conventional ballast for fluorescent lamps.
6Task lighting saves energy, utilize it whenever possible
7All surfaces absorb light to some degree and lower their reflectance. Light colored surfaces are more efficient and need to be regularly painted or washed in order to ensure economical use of light.
8Maintenance is very important factor. Evaluate present lighting maintenance program and revise it as necessary to provide the most efficient use of lighting system.
9Clean luminaries, ceilings, walls, lamps etc. on a regular basis.
10Controls are very effective for reducing lighting cost. Provide separate controls for large ratings.
11Install switching or dimmer controls to provide flexibility when spaces are used for multiple purpose and require different amounts of illumination for various activities.
12Switching arrangements should permit luminaries or rows of luminaires near natural light sources like windows or roof lights to be controlled separately.
13Separate lighting feeder and maintain the feeder at permissible voltages by using transformers.
14Install occupancy sensors for indoor cabin light controls

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