Abstract: An acquisition unit acquires a quantity relating to an operating rate of a facility of a plant and a quantity relating to energy consumption of the facility. An index value specification unit specifies a higher index value as the energy consumption is lower, and a higher index value as the operating rate is higher, or a lower index value as the energy consumption is lower, and a lower index value as the operating rate is higher, based on the quantity acquired by the acquisition unit. An index value output unit outputs information relating to the index value.

Abstract: An acquisition unit acquires a quantity relating to an operating rate of a facility of a plant and a quantity relating to energy consumption of the facility. An index value specification unit specifies a higher index value as the energy consumption is lower, and a higher index value as the operating rate is higher, or a lower index value as the energy consumption is lower, and a lower index value as the operating rate is higher, based on the quantity acquired by the acquisition unit. An index value output unit outputs information relating to the index value.

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.