Diesel generator
Sizing
### Sizing

Typically however it is the size of the maximum load that has to be connected and the acceptable maximum voltage drop that determines the set size, not the ratings themselves. If the set is required to start motors, then the set will have to be at least three times the largest motor, which is normally started first. This means it will be unlikely to operate anywhere near the ratings of the chosen set.

Many gen\-set manufacturers have software programs that enable the correct choice of a set for any given load combination. Sizing is based on site conditions and the type of appliances, equipment, and devices that will be powered by the generator set.


Do specific appliances require different generator set sizes?