We're sorry, but this calculator page requires a Javascript-enabled browser. Please Enable Javascript. Click the link for detailed instructions on how to enable Javascript. Thank you. Energy-Efficient Track Light Savings Calculator Go back to the metal halide track lights topic. Electricity cost ($/kWh) Lamp usage h/y Lamp-specific input Halogen Energy-efficient alternative Lamp cost ($) Fixture cost ($) Lamp life (h) Lamp power (W) Ballast power (W) NA Annual lighting energy cost ($) Annual cooling energy cost ($)a Annual lamp-replacement cost ($)b Annual lamp-replacement labor cost ($) Total annual operating cost ($) Annual savings ($) NA Purchase cost of lamp + fixture ($) Incremental purchase cost ($) NA Simple payback period (y) NA Total cost of ownership over 10 years ($) Cost savings over 10 years NA Notes: CFL = compact fluorescent lamp; COP = coefficient of performance; h = hour; kWh = kilowatt-hour; NA = not applicable; W = watt; y = year. a. Cooling energy costs assume 80 percent of input power becomes a cooling load for the halogen system, 30 percent becomes a cooling load for the system, and cooling load COP is 3.4. b. Lamp replacement cost assumes 15 minutes per lamp at $25/h.
