| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a gas purchase contract for energy generation is sometimes accompanied by a restriction on a contract year amount of gas use satisfying a reference amount, so that if a lower limit restriction is deviated, penalty is incurred.SOLUTION: When creating an energy operation plan, a heat demand total amount calculation unit extracts a power/heat demand total amount for each time division slot into which each division of a short period division is further divided in time. A primary heat total amount calculation unit subtracts a contract power countermeasure portion from the power/heat demand total amount to find a heat demand total amount, and obtains an expected amount of gas use after cost for the heat demand total amount is calculated by a gas demand cost calculation unit. A lower-limit restriction on amount of gas use and an expected amount of gas use within a prescribed period are compared. If the expected amount of gas use is small, a forcible amount of gas use is allocated to only a heat demand portion, and a consumption target setting unit sets a consumption target value by dividing the allocated expected amount of gas use and forcible amount of gas use. |
