Charge/discharge control apparatus and charge/discharge control method

A charge/discharge control apparatus comprising:

• a power generation amount calculating section that calculates an expected amount of power generation that is an amount of power generated by a power generating section in the future, for each predetermined period;
• a power consumption amount calculating section that calculates an expected amount of power consumption that is an amount of power consumed by a power load consuming a power generated by the power generating section, for the predetermined period;
• an excess power period determining section that determines an excess power period that is a period during which the expected amount of power generation is larger than the expected amount of power consumption;
• an excess power amount calculating section that calculates an expected excess power amount that is an amount of power resulting from subtracting the expected amount of power consumption from the expected amount of power generation in the excess power period;
• and
• a charge/discharge control section that controls charge/discharge of a battery so that a remaining amount of the battery at the beginning of the excess power period becomes an amount resulting from subtracting the expected excess power amount from a pre-set charge amount.