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Annual Motor Energy Cost

  1. This calculator allows users to quickly determine the annual electricity cost for given motor horsepower load.
  1. The electric motor mechanical efficiency is constant or the average mechanical efficiency is known.
  2. Power factor is constant and equal to 1.0
  3. Power distribution and control equipment losses are not considered.
Step 1: Annual Motor Energy Cost
1.1 Hours per day of operation
1.2 Days per year of operation
1.3 Actual motor horsepower (rated conditions)
1.4 Motor efficiency (ie: 95%)
1.5 Cost of energy ($/KWh)
Step 2: Solve
2.1 Proof steps
2.2 Solve for Annual Motor Energy Cost