An emergency power generator, also known as an emergency generator or backup generator, is a device that produces electrical power during a power outage or when there is no access to the regular power grid. It is used to power essential devices and systems when the normal power supply is unavailable.

An emergency power generator usually consists of a combustion engine, such as a diesel engine or a gasoline engine, which is coupled to a generator. The combustion engine drives the generator, which in turn produces electricity. The generator can be started as soon as a power outage occurs or can automatically activate thanks to a special control system.

Emergency power generators are available in different sizes and power capacities, depending on the intended application. Small portable generators can be used to power several appliances, while larger fixed generators can supply power to homes, businesses, or even entire buildings during a power outage.

The use of an emergency power generator can help prevent inconvenience, loss of productivity, and damage to devices or systems during a power outage. It is important to regularly maintain the generator and ensure the proper fuel supply so that it can operate reliably when needed.