From emergency home backup to DIY projects to the jobsite . the Generac GP15500EFI portable generator provides high wattage . dependable portable power. Equipped with an 816cc engine with Electronic Fuel Injection . the GP15500EFI delivers power efficiently . providing up to 11 hours of runtime at 50% load. TruePower Technology safely powers sensitive electronics . appliances and tools while onboard COsense Technology provides powerful protection against hazardous carbon monoxide. The GP15500EFI also features electric start (battery included) . low-oil shutdown protection . circuit breaker protected outlets and an hour meter with maintenance resets. The included never-flat wheel kit and available lifting eye accessory make transportation easy around the home or jobsite.