Inverter generator is an economical alternative to traditional generators. They can be powered by either natural gas or propane, and do not need a power outlet to operate. These benefits make them ideal for camping trips, tailgating events, and other outdoor activities. In some cases they are even used as emergency backup power sources at home in the event of a storm or heavy snow that would knock out your electricity supply. Are inverter generators necessary? The answer is yes if you want the ease, versatility and affordability of this option!