Energy Savings Calculator

Annual Energy Savings / ROI Calculator
Enter Step 1. Calculate the total kilowatts saved by replacing the inefficient lamps with more efficient lamps
Enter Original Lamp Wattage
Enter Replacement Lamp Wattage	-
Watts Saved per Lamp =
Enter Numbers of Lamps to replace	x
Total Watts Saved =
Total Kilowatts Saved =
Step 2. Calculate the total kWh per year saved by this upgrade
Total Kilowatts Saved
Enter Hours Used per Day	x
Enter Days Used per Week	x
Enter Weeks Used per Year	x
Total kWh Saved per Year =
Step 3. Calculate the total energy costs saved per year by this upgrade
Total kWh Saved per Year
Enter Your Energy Cost per kWh (typically $.10)	x
Total Energy Cost Savings per Year =
Step 4. Compute the payback of the upgrade
Enter Initial Cost of Lighting Upgrade	$
Total Energy Cost Savings per Year	/
# of Years for Payback on Investment =
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