Efficiency

• What is the energy efficiency equation for energy transfer?

  Efficiency = Useful energy transferred / Total power
• How is energy efficiency calculated?

  By dividing useful energy by total power
• What can energy efficiency be expressed as?

  As a decimal or as a percentage
• What does energy efficiency indicate?

  • The ratio of useful energy output to total energy input
  • A measure of how effectively energy is converted
  • Important for evaluating energy use in systems
• Why is it important to calculate energy efficiency?

  To assess how effectively energy is used