Enter the energy output and the energy input into the Calculator. The calculator will evaluate the Energy Efficiency Factor. 

Energy Efficiency Factor Calculator

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Enter any 2 values to calculate the missing variable


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Energy Efficiency Factor Formula

EEF = EO / EI 

Variables:

  • EEF is the Energy Efficiency Factor
  • EO is the energy output
  • EI is the energy input

To calculate Energy Efficiency Factor, divide the energy output by the energy input.

How to Calculate Energy Efficiency Factor?

The following steps outline how to calculate the Energy Efficiency Factor.


  1. First, determine the energy output. 
  2. Next, determine the energy input. 
  3. Next, gather the formula from above = EEF = EO / EI .
  4. Finally, calculate the Energy Efficiency Factor.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

energy output = 300

energy input = 400

Frequently Asked Questions (FAQ)

What is Energy Efficiency Factor (EEF)?

Energy Efficiency Factor (EEF) is a measure of how efficiently a system converts input energy into output energy. It is calculated by dividing the energy output by the energy input.

Why is calculating Energy Efficiency Factor important?

Calculating the Energy Efficiency Factor is important for understanding how well a system is performing. It helps in identifying areas for improvement and can lead to cost savings and reduced environmental impact by optimizing energy use.

Can Energy Efficiency Factor be greater than 1?

Typically, the Energy Efficiency Factor is less than 1, as systems usually lose some energy in the form of heat or other waste. However, in some theoretical or specific cases, such as with heat pumps under certain conditions, the EEF can be greater than 1.

How can one improve the Energy Efficiency Factor of a system?

Improving the Energy Efficiency Factor of a system can be achieved by reducing energy losses, optimizing the system’s operation, using more efficient components, and regular maintenance to ensure the system operates at peak efficiency.