There are 2 main types of generators available for commercial purchase, one is specially designed for households while the other is meant for industrial purposes. Household generator brands: Honda, Senci, KPS (Power range from 1 - 12 kW) and Industrial generator brands: Hyundai, Doosan, Koodec, Dessun Mitsubishi, Cummins… (Power range from 15 - 2250 kW)