Abstract: A demand prediction unit predicts a time series of demand values related to a predetermined prediction period using a predictive model. The predictive model is a learned model learned to output a demand value of an energy source by inputting an operation plan value of a plant and a predicted value related to an environment of the plant. An optimizing unit specifies operating indices of a plant that satisfy a plurality of demand values and satisfy a desired condition for each time related to the predicted time series of demand values. A presentation unit presents information related to the time series of operating indices related to the prediction period.

Abstract: According to the present invention, a selection unit receives selection of at least one explanatory variable from among a plurality of candidate explanatory variables regarding the operation of a factory. A value input unit receives an input of a value regarding the selected explanatory variable. An energy demand identification unit identifies the value of a target variable regarding the operation of the factory on the basis of the inputted value. An output unit outputs the identified value of the target variable.