Simple Energy Estimator

    Calculate the energy savings you'll gain by relamping your lighting system.
    Also find out how long it will take to recoup your full investment for the new system.

    Enter the following information and click "calculate".
    Your results will display below.

    * Required
    * Number of luminaires:    
    * Average number of hours on per year:    
    * Your electric cost per kilowatt hour:   EUR 
    * Watts per luminaire used in current system:    
    * Watts per luminaire used in proposed system:    
    Cost to upgrade each luminaire*:   EUR 

    Cost of Electricity
    Current system:   per year
    Proposed system:   per year
    Energy Savings (with proposed system)
    Each luminaire:   per year
    Total:   per year
    Using only your energy savings, you will get your full investment back in 
    * This cost should include the lamp, ballast, and labor required to replace the luminaire. You may want to subtract any costs that would have been incurred with the current system.