GENERATOR POWER CALCULATOR

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HOW MUCH GENERATOR
POWER DO YOU NEED?


STEPS


  1. Select the items you wish to power at the same time. Using the Power Calculator, fill in the values as applicable.
  2. Focus on the larger applications that draw the most power.
  3. A typical house will take about 5KW (5000 Watts).
  4. A typical barn will take about 5KW (5000 Watts) in lighting and small appliances
  5. For a typical house and barn combination you can skip LINE 1 to 6 and enter 10KW into LINE 7.

CONVERSIONS


  • 1000 Watts = 1 Kilowatt (KW)
  • 1 Horsepower = 1 Kilowatt (Approx.)
  • Amps x Volts = Watts

POWER CALCULATOR:
1. Total Amps @ 120 Volts (Appliances)
Amps.
2. Total Amps @ 240 Volts (Appliances)
Amps.
3. Multiply LINE 1 X 120
Watts.
4. Multiply LINE 2 X 240
Watts.
5. Add LINE 3 and 4
Watts.
6. Divide LINE 5 by 1000 (1000 Watts = 1KW)
KW.
7. Total HP in motors
Line 7 Total
HP.
8. Horse power from Largest Motor
HP.
9. Add Line 7 total and Line 8 (1HP = 1KW)
KW.
11. Add Line 6 and 10 This is the total KW needed.
KW.