US Patent 9207735 Power management device and system

A smart power grid system and power management system including at least one intelligent user-side power management device (PMD) to eliminate power theft and efficiently provide clean energy to the users of the grid while helping the grid to do smart demand response management, particularly for renewable energy based grids that need to efficiently manage the slack due to the large variability in power generation through these energy sources, the PMD including a controller, a circuit protection device, a metering device, a local power storage device, a grid communication interface, and switches to prevent overloading and illegal consumption of power.