|Step 1: Generator size
EXPLANATION Use your continuous wattage not the peak wattage of your generator. A generator with a peak wattage of 6500 may have a continuous wattage of only 5000.
|Step 2: Number of circuits available to the generator
EXPLANATION Number of critical circuits of your house/business that need to be powered by the generator.
Number of circuits:
|Step 3: Branch circuit capacity
EXPLANATION The size of circuit breakers that supply your critical circuits used in Step #2