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Mechanical EngineeringP0

Pump Energy Cost Calculator

Calculate pump energy consumption and operating cost based on power, run hours, and electricity rate.

Inputs
Enter your values below

Continuous ≈ 8760 h/year

$/kWh — typical industrial 0.08-0.15

Result
Annual Energy Cost
—
Enter values and click Calculate
Formula
power_input × hours × rate ÷ 1000
Result unit: $/year

Annual cost = P(kW) × h × rate($/kWh). Engine converts kW→W, so /1000 converts back to kW.

Introduction

Estimate annual pump operating energy cost. For a continuously-running pump, electricity typically costs 5-10× the pump purchase price over its lifetime, making energy efficiency the dominant cost factor.

Calculation Example

22 kW pump running 8000 h/year at $0.12/kWh costs $21,120/year.

Inputs: power_input=22, hours=8000, rate=0.12
Result: 21120 $/year

Engineering Applications

  • •Operating cost budgeting
  • •Energy audits
  • •Pump replacement ROI
  • •VFD savings analysis

Frequently Asked Questions

How much can a high-efficiency pump save?

Improving pump+motor efficiency from 60% to 80% saves 25% energy — $5,000+/year on a 22 kW continuous-duty pump.

How much does pump operation cost vs purchase?

Over a 15-year life, energy cost is typically 50-90% of total lifecycle cost. Purchase price is often <10%.

Related Calculators

Pump Power CalculatorPump Efficiency Calculator

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Disclaimer: Calculations are for reference and educational purposes only. Always verify results independently for engineering design. See full disclaimer.