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Energy Cost Calculator for Compact Fluorescent Lamps

This tool calculates the payback period for your calc retrofit project. Modify the default values to suit your project requirements.
Existing incandescent lamp wattage		Watts
Incandescent lamp cost		dollars
Incandescent lamp life		hours
calc wattage		Watts
calc cost		dollars
calc life (6000 hours for moderate use, 10000 hours for high use)		hours
Number of lamps in retrofit project
Hours operating per week		hours
Average cost of electricity		$/kWh
Relamper labor costs		$/hr
Time taken to retrofit all lamps in this project		min
Time taken to relamp one lamp		min

Type of Relamping Practiced:
Group Relamping:
		months
Spot Relamping:
		months

Existing incandescent lamp wattage, measured in watts. Incandescent lamp cost, measured in dollars. Incandescent lamp life, measured in hours. The default value is 1000 hours. calc wattage, measured in watts. calc cost, measured in dollars. calc life (6000 hours for moderate use, 10,000 hours for high use). The default value is 8000 hours. Number of lamps in retrofit project. Hours operating per week. Average cost of electricity, measured in kilowatt hour. The default value is 6 cents per kilowatt hour. Relamper labor costs, measured in dollars per hour. Time taken to retrofit all lamps in this project, measured in minutes. Time taken to relamp one lamp, measured in minutes. For group relamping, the simple payback period in months. months For spot relamping, the simple payback period in months. months