Energy usage management device and energy usage graph generation method

摘要

PROBLEM TO BE SOLVED: To enable checking the level of achievement in constraint conditions in an extremely easy manner.;SOLUTION: A cumulative consumption calculation part 15 calculates a maximum demand period cumulative consumption Ym and a non-maximum demand period cumulative consumption Xm by cumulating a monthly energy consumption Um for each period of the maximum demand period and the non-maximum demand period other than the maximum demand period. A graph generation part 16 plots, from the two dimensional-coordinate space composed of the cumulative consumption of the maximum demand period and the cumulative consumption of the non-maximum demand period, point Pms indicating the cumulative energy consumption of a facility, on the coordinate positions where the maximum demand period cumulative consumption Ym and the non-maximum demand period cumulative consumption Xm lie, and therefrom generates a cumulative energy consumption graph. The same then generates a constraint condition function in the two-dimensional coordinate space on the basis of constraint conditions, and plots a constraint condition achievement area Q having the constraint condition function as a border, onto the cumulative energy consumption graph.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT