Abstract: The actual performance information classify part derives a classification result of an actual performance information on electric power demand, by a classification setting information, from an environment information and a date attribute information which is correlated with each of the electric power demands which is included in an actual performance information on electric power demand. The prediction information calculate part derives a classification result of a prediction target day, using the date attribute information of the prediction target day, which is a day to conduct a prediction, and the environment information which is measured before a start of the prediction of a prediction target day, and in addition, predicts an electric power demand of a prediction target day, based on the electric power demand of the actual performance information on electric power demand, which corresponds to the classification result of the prediction target day.

Abstract: The present disclosure includes an EV information management unit (101) configured to manage charging/discharging capacity information of a plurality of electric vehicles, a schedule information management unit (102) configured to manage schedule information of charging/discharging the electric vehicles, a charger/discharger information management unit (103) configured to manage charging/discharging unit information of charging/discharging units, a facility information management unit (106) configured to manage information on power rate, a charging/discharging unit grouping unit (104) configured to group the charging/discharging units on the basis of the charging/discharging unit information, an allocation constraint setting unit (105) configured to set allocation constraints for the charging/discharging units on the basis of the schedule information, for each group of the charging/discharging units, and a charging/discharging plan creation unit (107) configured to create a charging/discharging plan by alloca

Abstract: A buried piping replacement period prediction apparatus includes a buried piping attribute data acquisition unit and an exceedance-probability-of-corrosion-depth prediction unit. The buried piping attribute data acquisition unit acquires attribute data of buried piping. The attribute data of the buried piping includes a first environmental factor of the buried piping, a first burial period of time of the buried piping, and a nominal pipe wall thickness or an allowable corrosion depth of the buried piping. The exceedance-probability-of-corrosion-depth prediction unit calculates an exceedance probability of corrosion depth of the buried piping in a certain period from an exceedance-probability-of-corrosion-depth prediction model for the first environmental factor, the first burial period of time, and the nominal pipe wall thickness or the allowable corrosion depth.

Abstract: The present disclosure is intended to reduce the occurrence of breakdown of a line facility due to variation between an agreement result and electric power actually flowing through a line. An electric power agreement system includes: an agreement result calculation unit that calculates an agreement result about each customer; a flow achievement calculation unit that calculates a flow achievement for the line facility individually; a flow plan calculation unit that calculates as the flow plan for the line facility individually; a risk calculation unit that calculates a variation of the flow achievement from the flow plan assumed in the future as a risk for the line facility individually on the basis of a variation of the flow achievement from the flow plan in the past; and a line constraint evaluation unit that determines for the line facility individually whether a risk-considered flow plan fulfills line constraint.

Abstract: A peer-to-peer terminal includes a bid data obtaining unit, a bid data transmitter, a contract result calculator, a contract result transmitter, a contract result receiver, and a contract result selector. The bid data obtaining unit obtains bid data. The bid data transmitter transmits the bid data to another peer-to-peer terminal. The contract result calculator calculates a contract result from a bid data set obtained by the bid data obtaining unit and including the bid data. The contract result transmitter transmits the contract result to the other peer-to-peer terminal. The contract result receiver receives, from the other peer-to-peer terminal, another contract result calculated by the other peer-to-peer terminal. The contract result selector selects one contract result from among the contract result and the other contract result.

Abstract: The actual performance information classify part derives a classification result of an actual performance information on electric power demand, by a classification setting information, from an environment information and a date attribute information which is correlated with each of the electric power demands which is included in an actual performance information on electric power demand. The prediction information calculate part derives a classification result of a prediction target day, using the date attribute information of the prediction target day, which is a day to conduct a prediction, and the environment information which is measured before a start of the prediction of a prediction target day, and in addition, predicts an electric power demand of a prediction target day, based on the electric power demand of the actual performance information on electric power demand, which corresponds to the classification result of the prediction target day.

Abstract: A compressor includes a rotation shaft that is capable of rotating around a main axis, an impeller provided integrally with the rotation shaft, a casing that covers the impeller from an outer circumferential side and forms a flow path through which a working fluid circulates, a discharge scroll that is provided at an end of the flow path on a downstream side and extends in a spiral shape around the main axis, a discharge nozzle that communicates with the discharge scroll on the downstream side and extends from the discharge scroll in a tangent direction around the main axis, and a pressure loss body that has a plate shape extending in a direction orthogonal to an axis of the discharge nozzle extending in a radial direction orthogonal to the main axis and is capable of blocking a part of a flow path cross-section of the discharge nozzle.

Abstract: A compressor includes a rotation shaft that is capable of rotating around a main axis, an impeller provided integrally with the rotation shaft, a casing that covers the impeller from an outer circumferential side and forms a flow path through which a working fluid circulates, a discharge scroll that is provided at an end of the flow path on a downstream side and extends in a spiral shape around the main axis, a discharge nozzle that communicates with the discharge scroll on the downstream side and extends from the discharge scroll in a tangent direction around the main axis, and a pressure loss body that has a plate shape extending in a direction orthogonal to an axis of the discharge nozzle extending in a radial direction orthogonal to the main axis and is capable of blocking a part of a flow path cross-section of the discharge nozzle.