EC Fan Energy Savings Calculator
Enter your current fan power, quantity and running hours to estimate the yearly electricity cost reduction from switching to EC fans. Result shown instantly, no signup needed.
Your Fan Data
Use measured running power if available. Nameplate rating may overstate actual draw. If you enter measured average running power, select 100% for the running power level below so it is not discounted twice.
Average percentage of the entered fan power during normal operation, not airflow percentage. A lower percentage lowers both the current energy use and the estimated saving shown below. If unsure, select 100%.
With damper control, motor power may not drop in proportion to airflow. Use measured running power where possible.
Estimated Result
Current annual cost
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EC fan annual cost
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Current energy use
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Energy saved per year
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Estimated annual electricity savings
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This tool provides a preliminary estimate only. It assumes the EC fan replacement can match the existing airflow and static pressure, and uses the fan power you enter, whether nameplate or measured. Actual energy saving depends on fan curve, duty cycle, control method and installation condition. For confirmed selection, send your fan data to the Proventofan engineering team.