A method of controlling operation of a powered device is provided, comprising determining whether the device is experiencing a cyclical load profile including high load conditions and low load conditions, applying a first power component to the device using an engine, the first power component corresponding to an average power required by the cyclical load profile, and applying a second power component to the device using a motor/generator, a sum of the first power component and the second power component corresponding to a power required by the powered device during the high load conditions.