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Energy Efficiency Evaluator

Use when loading and duty cycle is known

Existing Load/Base Case

Description of what you have and how you use it now.
End Rate for Electricity $ per kWh

Load Details:
Loading:
Electrical Demand
Duty Cycle:
Hours of Operation per day Hours
Days per Week Day
Weeks per Year Weeks
Number of Units to be Evaluated:
Number of Units

Loading Results:
Total Load Watts
Annual Energy kWh
Monthly Energy kWh
Annual Energy Cost $
Monthly Energy Cost $

Suggested Step to Save Energy

Description of the change you are thinking of making.
End Rate for Electricity $ per kWh

Load Details:
Loading:
Electrical Demand Watts
Duty Cycle:
Hours of Operation per day Hours
Days per Week Day
Weeks per Year Weeks
Number of Units to be Evaluated:
Number of Units

Loading Results:
Total Load Watts
Annual Energy kWh
Monthly Energy kWh
Annual Energy Cost $
Monthly Energy Cost $

Savings

Base Case minus Energy Efficient Case
Demand Savings Watts
Annual Energy Savings kWh Monthly Energy Savings Watts
Annual Dollar Savings $ Monthly Dollar Savings $

Reduction of Energy Cost %

Simple Payback

Purchase cost of one unit $
Purchase price of all units $
Cost to install all units $
Total Cost $
Months to payback

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annual cost energy use duty cycle

Enter description of your existing load or non-energy efficient option.

Suggested rate is 11 cents see technical reference under Electrical Energy Cost for further information.

How much power the device takes measured in watts (W) or kilowatts (kW). Find on nameplate or in instruction books.

Estimate how many hours the device is on.

Average number of days device is used.

Estimate how many weeks device runs – adjust for events like vacations.

How many units do you want to evaluate.

Enter description of the energy efficient step you want to evaluate.

How much power is required. Measured in watts or kilowatts.

If you bought 2 bulbs for $4.00 purchase price per unit is $2.00

Note any additional costs to install the energy efficient units. If installed when replacement is required usually there is very little additional cost.