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Demand Load Calculations

Revit calculates a demand load once a demand factor for an electrical device/panel is available.

Demand Load Calculation example

Demand Factor Rule

  • Largest Motor: 125%
  • 2nd Motor: 100%
  • 3rd Motor: 75%
  • 4th Motor: 50%

Demand Loads On

  • A: 1.25* 20 + 1 *20 + .75 * 20 + 0.5 * (10 + 10 + 5 + 5 + 5 + 5) = 80 HP
  • B: 1.25*20 + 1* 5 + 0.75 * 5 + 0.5 * (5 + 5) = 38.75 HP
  • C: 1.25 * 10 + 1 * 10 = 22.5 HP
  • D: 1.25* 20 + 1 * 20 = 45 HP
  • E: 1.25* 20 + 1 * 5 = 30 HP

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