Projected Market Impacts for the Evaluation of Electronic Ballasts and Related Controls for HID Lighting Systems work are applicable to all building types using HID lighting systems: commercial, industrial and municipal. The impacts are as follows.

Electronic ballasted HID lighting systems could replace current systems with improved energy performance of 10 to 20 percent, depending upon the installed technology, and with an additional 10 to 20 percent if controls can be utilized to reduce light levels while not impairing task performance for the application. An example is a reduction in lighting intensity from installed HID hi-bay fixtures in retail areas when these are associated with skylights. During daylight hours, lighting from the lamps could be reduced significantly without compromising the quality or intensity of light. If the technology were universally adapted with improved efficiencies of 10 percent in the lamp/ballast lighting system and additional 10 percent were gained by use of controls, a total of 2.1 TWh/yr savings could be achieved in California by employment of the technology.