CONTROL DEVICE, CONTROL METHOD, AND CONTROL PROGRAM OF STORAGE BATTERY AND ELECTRICITY STORAGE SYSTEM
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United States of America Patent
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Issued Date -
Aug 18, 2016
app pub date -
Nov 19, 2013
filing date -
Nov 19, 2013
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Abstract
A control device of a storage battery includes a first obtaining unit that obtains first information indicative of an electricity price set for each time slot, a second obtaining unit that obtains second information indicative of charge/discharge efficiencies of the storage battery, a first calculating unit that calculates first electric energy charged in the storage battery, a second calculating unit that calculates second electric energy of the storage battery dischargeable from the storage battery to a load, a third calculating unit that calculates a unit charging price per unit electric energy required to charge the second electric energy based on the second electric energy, the electricity price in the time slot during which the storage battery is charged, the first electric energy, and the charge/discharge efficiencies, and a control unit that compares the electricity price with the unit charging price in each of the time slots.
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