DIRECT DRIVE PARALLEL POWER SYSTEM

A direct drive parallel power system for powering a transport climate control system is provided. The direct drive parallel power system comprises a powertrain, a battery source and a power system controller. The powertrain includes a prime mover, a motor-generator, and a drive shaft. The prime mover is configured to generate mechanical power for powering a direct driven load of the transport climate control system via the drive shaft. A motor of the motor-generator is configured to generate mechanical power for powering the direct driven load via the drive shaft. The battery source is electrically connected to a generator of the motor-generator and is configured to supply electrical power to the motor of the motor-generator and configured to supply electrical power to an electrically driven load of the transport climate control system. The power system controller monitors and controls operation of the prime mover, the motor-generator, and the battery source.