A method includes selectably controlling a power supply from a renewable energy source based power system and an energy storage device charged thereby and/or an Alternating Current (AC) power system to a computing system including one or more data processing device(s) using an electronic control system, and continuously updating, through a computing power management system associated with the electronic control system, a parameter of operation of the energy storage device in response to analyzing data pertinent to prior energy usage/production and/or predicted energy usage/production relevant to execution of a high computational workload through the one or more data processing device(s). The method also includes optimizing the power supply from the energy storage device to the one or more data processing device(s) using the computing power management system based on the continuously updated parameter of operation of the energy storage device.