An energy management apparatus comprising: an acquisition unit configured to acquire power information of at least one of power consumed by load equipment, power generated by a dispersed power source, power purchased from a commercial power source and power sold to the commercial power source; a communication unit configured to communicate with a communication terminal, wherein the communication unit is configured to receive a request signal from the communication terminal, and transmit information to the communication terminal; and a controller configured to calculate price information based on the acquired power information and, in response to a request from the communication terminal, transmit the price information to the communication terminal via the communication unit, characterized in that: the controller is further configured to determine whether the request signal has a format with a code indicating a request signal for price information or a format with a code indicating a request signal for power information, acquire price information and transmit the acquired price information to the communication terminal in response to a request signal having a format with a code indicating a request signal for price information, and acquire power information and transmit the acquired power information to the communication terminal in response to a request signal having a format with a code indicating a request signal for power information. an acquisition unit configured to acquire power information of at least one of power consumed by load equipment, power generated by a dispersed power source, power purchased from a commercial power source and power sold to the commercial power source; a communication unit configured to communicate with a communication terminal, wherein the communication unit is configured to receive a request signal from the communication terminal, and transmit information to the communication terminal; and a controller configured to calculate price information based on the acquired power information and, in response to a request from the communication terminal, transmit the price information to the communication terminal via the communication unit, characterized in that: the controller is further configured to determine whether the request signal has a format with a code indicating a request signal for price information or a format with a code indicating a request signal for power information, acquire price information and transmit the acquired price information to the communication terminal in response to a request signal having a format with a code indicating a request signal for price information, and acquire power information and transmit the acquired power information to the communication terminal in response to a request signal having a format with a code indicating a request signal for power information. the controller is further configured to determine whether the request signal has a format with a code indicating a request signal for price information or a format with a code indicating a request signal for power information, acquire price information and transmit the acquired price information to the communication terminal in response to a request signal having a format with a code indicating a request signal for price information, and acquire power information and transmit the acquired power information to the communication terminal in response to a request signal having a format with a code indicating a request signal for power information.