Let’s say we have 1,000 typical 60 Watt A-19 Incandescent bulbs that are replaced with 1,000 A-19 LED 9 Watt bulbs, and let’s assume that these bulbs are running for 9 hours/day for 365 days/year @ $0.21/kw, then we will have:
|Energy saved per bulb per hour
|Energy Saved per bulb per year
|Net Annual Saving for 1,000 bulbs
LED retrofit projects can reduce gross energy and maintenance costs by an estimated 80 percent and will be paid for from savings generated by the program. Approximately 12%-15% of the cost reduction achieved can be attributed to an extensive use of lighting control and dimming controls systems.