Recent advances in lighting technologies have created the potential for significant energy saving opportunities. Old inefficient T12 lamps and magnetic ballasts are being replaced with T8 and T5 lamps with electronic ballasts. This type of upgrade can result in a 30% to 40% reduction in your energy use and most often results in better quality lighting. Lighting controls also offer a signicant opportunity for energy savings. Dimming ballasts, motion sensors, and daylight harvesting technologies have allowed businesses to lower their lighting energy consumption by turning off or reducing the output of certain fixtures within the building.
LED lamps and fixtures are now being used in commercial buildings. LED’s can use 6 to 10 times less energy than standard incandescent and HID (high-intensity discharge) fixtures. Compact fluorescent lamps (CFLs) can also be used to reduce energy consumption from incandescent lamps. High-bay fluorescent fixtures are also replacing HID fixtures in retail, manufacturing, and warehouse buildings. These fixtures can approximately 40% to 50% less energy than the HID systems they replace. Read more about LED lighting.