Power Supply-and-Demand Balancing Solution Using Distributed Storage Batteries

In order to resolve the issue of the power supply-and-demand balance that has been triggered by the increased use of renewable energies, the traditional supply-and-demand adjustment on the power supply side is already regarded as inadequate. The potential for a new supply-and-demand balancing mechanism considering the demand side is currently under active deliberation. The “demand response” (DR) being studied together with a new market framework to be introduced after the institutional reform of the complete electric power deregulation in 2016 is a typical example of these deliberations. This paper presents the power supply-and-demand balancing solution proposed by NEC. We focus particularly on the “hierarchical hybrid control” system and “virtual integration technology” for active use with multiple storage batteries distributed over a wide area on the consumer side. 2. Hierarchical hybrid control System for Distributed Storage Battery Control