VFD Energy Savings Calculator

Compare a constant-speed fan or pump with reduced-speed operation using the cube-law estimate. Results update live as you type.

Estimated VFD kW
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Annual kWh Saved
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Annual Cost Savings
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Power Reduction
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Inputs valid. Results update live as values change.

Engineering estimate only. Verify final values against project criteria, equipment submittals, manufacturer data, measured field conditions, applicable codes, and engineering judgment.

Need help applying this tool to a controls project or commissioning issue? Contact WEBC.