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Calculate annual hydraulic system power consumption, efficiency, and potential energy savings
Input Parameters
Motor Power (kW)
Annual Operating Hours (hrs)
Average Load Factor (%)
System Age (years)
VFD Installed?
No (Fixed Speed)
Yes (Variable Speed)
Electricity Rate ($/kWh)
Calculate
Results
--
Annual Consumption
kWh
--
Annual Energy Cost
$
--
Potential Savings
$
--
VFD Payback Period
years
Reference
VFD savings follow affinity laws: Power ∝ Speed^2.5 Efficiency degrades ~0.5% per year of operation Typical VFD cost: $150/kW + $2000 installation Load factor = avg demand / rated capacity