Patent ID: 8471406
Filing Date: 2013-06-25
Classification: H02J,Y02B,Y04S

Abstract:
1. A system, comprising: an energy storage system configured to supply electrical energy to a first load during a single period that is defined as one of a peak period or a non-peak period and to a second load during the other of the peak period or the non-peak period; and a system controller that is operable to maintain the energy storage system at a plurality of minimum capacity levels, wherein the minimum capacity levels include a first amount of stored electrical energy during a first mode, and a second amount of stored electrical energy during a second mode, and wherein the system controller maintains the energy storage system in the first mode during a first portion of the single period in which the first load is supplied with electrical energy by the energy storage system, and in the second mode during a second portion of the same single period, and wherein the first mode stores a minimum capacity level sufficient to power a determined demand load and an additional capacity, and the second mode stores only the minimum capacity level to power the determined demand load.