An adjustment power measuring device includes: an acquisition unit for acquiring effective power exchanged at a connection point with an adjustment power providing means capable of providing adjustment power to a first transmission and distribution network; a first calculation unit for calculating a power demand or a power supply for an entire electric power system including the first transmission and distribution network; and a measuring unit for measuring first adjustment power provided to the first transmission and distribution network by the adjustment power providing means on the basis of the effective power and the power demand or the power supply of the electric power system.

A system and method for offsetting peak demand for a customer of an electrical utility is disclosed. The system includes a source of stored electrical energy connected between an electrical service panel and a load. Demand spikes are detected by monitoring current flowing to the load, and when a demand spike is detected, the source of stored energy is connected to the load.

A demand management module may determine a demand interval that is associated with an electrical utility provider. In addition, the demand management module may determine a threshold amount of electricity received by an electrical meter during the demand interval. In some cases, the demand management module may determine a forecasted consumption during the demand interval, for load devices that receive electricity via the meter. Based on a comparison of the forecasted consumption and the threshold, the demand management module may determine whether to control electrical consumption of one or more of the load devices during the demand interval. For example, the demand management module may issue a command to a load managing device to increase or decrease the consumption of the load device.

A system and method for offsetting peak demand for a customer of an electrical utility is disclosed. The system includes a source of stored electrical energy connected between an electrical service panel and a load. Demand spikes are detected by monitoring current flowing to the load, and when a demand spike is detected, the source of stored energy is connected to the load.

A demand management module may determine a demand interval that is associated with an electrical utility provider. In addition, the demand management module may determine a threshold amount of electricity received by an electrical meter during the demand interval. In some cases, the demand management module may determine a forecasted consumption during the demand interval, for load devices that receive electricity via the meter. Based on a comparison of the forecasted consumption and the threshold, the demand management module may determine whether to control electrical consumption of one or more of the load devices during the demand interval. For example, the demand management module may issue a command to a load managing device to increase or decrease the consumption of the load device.

The invention is directed to predicting demand under circumstances in which continuous total contracted demand characteristics vary within a short time period. This energy demand predicting method is configured in such a way that sets of demand pattern generation data for each of one or more preset combinations of a contracted demand granularity and a time granularity are generated on the basis of actual energy demand information for a default historical period; a demand type is generated for each set of demand pattern generation data; an energy demand at a default historical date and time is calculated as a predicted value for evaluation, for each demand type; a contracted demand granularity and a time granularity are determined on the basis of the predicted value for evaluation for each demand type and the actual energy demand information, in such a way as to minimize an error between an estimated value or a predicted value of energy demand at a historical date and time, and the actual observed value at said date and time; and the energy demand value at an arbitrarily defined date and time is estimated or predicted on the basis of the determined results.

The conventional demand target display device based on time information differing from the information used by electric power companies and electric power consumers causes a divergence regarding their demand values. Therefore, a demand target display device with a dual-purpose scale, which acquires AC signals based on the AC waveform of AC power from a power supply line, generates time information based on the acquired AC signals, transmits the generated time information via radio waves within a housing, receives the transmitted time information via radio waves within the housing, indicates the time on the dual-purpose scale based on the received information, acquires electrical energy consumption within a segment for a given target demand value including the current time, and indicates the relationship between the acquired electrical energy consumption within a segment recorded and a target demand value set for such segment, is proposed.