Generators are very handy to have in the event the power goes out because of a storm or other natural event. They are a good backup system for heaters, freezers, well pumps, and lights. There are 2 different types of generators available. The first are the Portable models. These are very popular for those who need to run equipment away from electricity. Many are available for light-duty residential use, while others are rated for heavier commercial and industrial use. The second type is a fully automatic permanently installed unit attached to a home or business. Both have dual-fuel capability.