Abstract: Some embodiments relate to a power management system. The power management system includes a variable speed generator that provides a voltage output to a bus that is adapted to be connected to a load and an energy storage device. The power management system further includes a generator controller that controls the speed of the variable speed generator and monitors a charge level of the energy storage device. The generator controller also remotely displays information relating to the charge level of the energy storage device by supplying information relating to operation of the power management system over a network. The generator controller may remotely display information relating to the charge level of the energy storage device by supplying information relating to operation of the power management system over the Internet. The generator controller may also start/stop the variable speed generator based on the charge level of the energy storage device.