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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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