Abstract: A DR controller which is connected to a server via a network and performs control on power demand of a load resource includes: a communication determining unit which determines whether or not communication between the server and the DR controller is available; and a control unit which executes one of operation modes including a first mode for controlling the power demand of the load resource according to a predetermined schedule and a second mode for controlling the power demand of the load resource according to an instruction signal from the server. In the case where the determining unit determines that the communication with the server is unavailable when the control is being performed in the second mode, the control unit changes the second mode of the operation modes to the first mode in performing of the control.

Abstract: A apparatus includes: a detector that detects a parameter that indicates a state of an electric power system; a first communication interface that communicates with a device that receives power supplied from the electric power system; a second communication interface that receives a demand response signal from a server that monitors a state of the electric power system; and a control circuit that controls the device via a first communication interface. The demand response signal contains either first information indicating an instruction for increasing the amount of power supplied from the electric power system to the device or second information indicating an instruction for decreasing the amount of power supplied from the electric power system to the device, and the control circuit determines whether control of the device is performed in accordance with the demand response signal based on the first information or second information contained and the detected parameter.

Abstract: A supply and demand control device includes: a first communication unit which communicates, via a communication network, with an electrical device which belongs to a customer and consumes power from a power system; and a control unit which obtains a frequency of the power system, and start observation control if the obtained frequency falls below a lower limit of a predetermined frequency range, in which in the observation control, the control unit determines start time for reducing power consumption by the electrical device via the first communication unit, based on a rate of change in frequency obtained after the observation control is started, and starts reducing the power consumption at the start time if the obtained frequency does not return to within the predetermined frequency range within an observation duration which is a duration from start of the observation control to the start time.

Abstract: A demand response method includes: obtaining DR contracts scheduled to be implemented in a target period; determining, for each of the DR contracts, whether or not content of the adjustment of the supply and demand for electrical energy requested in the DR contract is executable; generating one or more DR scenarios each being a combination of two or more of the DR contracts executable in the target period; and extracting, from among the generated one or more DR scenarios, at least one DR scenario of which a total value of an amount of the adjustment of the supply and demand for electrical energy of the at least one appliance satisfies contract conditions of each of the two or more of the DR contracts included in the at least one DR scenario when the at least one appliance is caused to operate based on the at least one DR scenario.

Abstract: A apparatus includes: a detector that detects a parameter that indicates a state of an electric power system; a first communication interface that communicates with a device that receives power supplied from the electric power system; a second communication interface that receives a demand response signal from a server that monitors a state of the electric power system; and a control circuit that controls the device via a first communication interface. The demand response signal contains either first information indicating an instruction for increasing the amount of power supplied from the electric power system to the device or second information indicating an instruction for decreasing the amount of power supplied from the electric power system to the device, and the control circuit determines whether control of the device is performed in accordance with the demand response signal based on the first information or second information contained and the detected parameter.

Abstract: A demand response control method for an electric power storage device. The method includes: acquiring consumption power of a user and information about one or more demand response services with which the user has a contract; estimating a lifestyle pattern in a demand control period according to the consumption power; assigning one of a plurality of demand control services to the demand control period according to the lifestyle pattern and generating operation plan of one or more electric appliances to perform demand control services; and controlling the electric appliances according to the operation plan in the demand control period.

Abstract: A power rate calculation method for used in a facility that has the plurality of privately-used areas and a common area, one or more power generators are installed in the common area, includes: obtaining a plurality of first power amounts consumed by each of the privately-used areas, detecting whether or not a second power amount generated by the one or more power generators is larger than or equal to a third power amount consumed by both of the plurality of privately-used areas and the common area; and calculating the power rates from the plurality of first power amounts by applying a first rate structure when the second power amount is larger than or equal to the third power amount and by applying a second rate structure that is different from the first rate structure when the second power amount is smaller than the third power amount.

Abstract: A power supply-demand control method is related to a method of a power supply-demand control system configured to adjust power supply-demand between a consumer and a power system by controlling electric equipment via a communication network during a supply-demand adjustment period. The power supply-demand control method includes receiving a request for changing the operation mode to a second operation mode higher in power consumption of the electric equipment than a first operation mode when the electric equipment operate in the first operation mode, in which power consumption of the consumer is suppressed, during the supply-demand adjustment period, and determining whether to permit the operation mode to change from the first operation mode to the second operation mode if a request for changing the operation mode to the second operation mode is received.

Abstract: Load control method suppressing reduction in functionality of a load resource brought about by demand response. The load control method includes: obtaining first time information for specifying demand response commencement time T1 and second time information for specifying ramping completion time T3; determining ramping commencement time T4 based on first time information and second time information; and causing ramping to be commenced at T4. T1 is a time point at which a demand response event is to be commenced. T3 is a time point at which ramping, which is a process through which an amount of electricity received from an electricity grid is changed, is to be completed. T4 is a time point at which ramping is to be commenced. T4 is later than T1 and earlier than T3.

Abstract: A demand response method includes: obtaining DR contracts scheduled to be implemented in a target period; determining, for each of the DR contracts, whether or not content of the adjustment of the supply and demand for electrical energy requested in the DR contract is executable; generating one or more DR scenarios each being a combination of two or more of the DR contracts executable in the target period; and extracting, from among the generated one or more DR scenarios, at least one DR scenario of which a total value of an amount of the adjustment of the supply and demand for electrical energy of the at least one appliance satisfies contract conditions of each of the two or more of the DR contracts included in the at least one DR scenario when the at least one appliance is caused to operate based on the at least one DR scenario.

Abstract: A supply and demand control device includes: a first communication unit which communicates, via a communication network, with an electrical device which belongs to a customer and consumes power from a power system; and a control unit which obtains a frequency of the power system, and start observation control if the obtained frequency falls below a lower limit of a predetermined frequency range, in which in the observation control, the control unit determines start time for reducing power consumption by the electrical device via the first communication unit, based on a rate of change in frequency obtained after the observation control is started, and starts reducing the power consumption at the start time if the obtained frequency does not return to within the predetermined frequency range within an observation duration which is a duration from start of the observation control to the start time.

Abstract: A DR controller which is connected to a server via a network and performs control on power demand of a load resource includes: a communication determining unit which determines whether or not communication between the server and the DR controller is available; and a control unit which executes one of operation modes including a first mode for controlling the power demand of the load resource according to a predetermined schedule and a second mode for controlling the power demand of the load resource according to an instruction signal from the server. In the case where the determining unit determines that the communication with the server is unavailable when the control is being performed in the second mode, the control unit changes the second mode of the operation modes to the first mode in performing of the control.

Abstract: A DR controller includes: an activation and verification unit which accepts a first identifier identifying a server and a second identifier identifying a contract unique to each user; a communication unit which transmits the second identifier to the server; a communication unit which receives a control schedule for an energy consumption device generated based on the contract by the server as a response to the transmitted second identifier; and an interface unit which controls the energy consumption device to reduce energy consumption by the energy consumption device based on the control schedule. The server includes: a communication unit which receives the second identifier from a terminal apparatus; a pairing management unit which generates a control schedule unique to each user, for the energy consumption device based on a contract identified by the second identifier; and a communication unit which transmits the generated control schedule to the terminal apparatus.