Power management of an NZE IoT device

An apparatus for managing power of a net-zero energy (NZE) internet of things (IoT) device, comprising:

• a power-managed compute system comprising memory and one or more processing units, the power-managed compute system configured to:
• enter an active state upon receiving a power-on command;
• and
• drive power management during the active state of the power-managed compute system;
• an asynchronous event system configured to generate one or more asynchronous events;
• and
• a power management unit configured to:
• receive the one or more asynchronous events from the asynchronous event system;
• perform charge monitoring adjusted for a transient effect caused by system load variation;
• based on the charge monitoring, determine if any of the one or more asynchronous events meet a respective charge qualification;
• if any of the one or more asynchronous events meet the respective charge qualification, generate the power-on command for the power-managed compute system;
• and
• if any of the one or more asynchronous events do not meet the respective charge qualification, wait for a power source to reach a threshold associated with the respective charge qualification.