Patent ID: 9098817
Filing Date: 2015-08-04
Classification: G06Q,H02J,Y04S

Abstract:
1. A method for controlling an energy storage unit having a model which tracks each charging instances, comprising: for each charging event, capturing energy charged into the energy storage unit from one of a plurality of energy sources and an unit energy price of the charging source(s) at the time of charging; updating a unit price of total energy stored in the storage unit at each time-step; during a discharging event, updating the unit price of energy in the storage unit on a selected cost model; determining a unit price of electricity (UPOE) as where x comparing the unit price of energy in the storage unit with other generation sources in a microgrid and a utility tariff; selecting a lowest cost combination from generation, storage, and grid and using the lowest cost combination to supply a load; and if a controller decides to use stored energy at any time, sending a discharge command to the energy storage unit.