System components such as processors, sensors, actuators, etc. have traditionally been powered by untethered sensing devices from a single shared energy storage source. Unfortunately, this approach resulted in devices that charge slowly. Also, these devices are both inefficient and inflexible for sensor systems that are powered by harvested energy. This technology is comprised of both hardware and software extension to the federated energy concept and it enables dynamic control of charge and discharge priorities via a processing core and real-valued inputs of each component’s charge state. The system will disseminate service life information for each component based on the current state-of-charge. The invention can be employed for low-energy electronic applications.