A device that can supply electricity to your house during power outages is casually referred to as a home generator. During an emergency, it allows you to continue using essential appliances such as air conditioners, heaters, refrigerators, as well as lights. Technically speaking, an electric generator is a device that converts mechanical energy into electric energy. In the AC power generators for home use the mechanical energy is produced by small engines. The spinning shaft of the engine is used to create an alternating magnetic field through a coil, which induces voltage. Since such a system includes an engine and an alternator mounted together, a technical term for this appliance is an engine-generator set or genset.
