Operation plan creating apparatus, operation plan creating method, and program

In one embodiment, an operation plan creating apparatus includes a first, a second and a third calculator. The apparatus creates the operation plan of the generator regarding an amount of 5 power generation. The first calculator calculates a virtual output limit on the basis of at least the output variation rate and the load retention period. The second calculator calculates a power generation amount limit value in the time frame on the basis of the virtual output limit; the initial value of the magnitude of the output 10 power and the initial value of the increase/decrease direction of the output power in the time frame; and the initial value of the load retention remaining time in the time frame. The third calculator calculates the amount in the time frame by solving an optimization problem that includes at least the limitation condition associated with 15 the power generation amount limit value. (Fig. 1) '9 D w 0 H< 0< (D xcrH: n a: 0 CL Ey z- 4U pto 0P3 D PLLj Z)Z HF IL M~nO(~ a0 :U W: on: 0 -~~ ~ I. ' 0~ PIH -j b (1)0' ' : :0 > : O 0 - (900c o-0