PROBLEM TO BE SOLVED: To automatically calculate weather compensation charge to be paid to an energy consumer under a prescribed condition in which a weather risk belonging to the energy consumer should be reduced with a simple configuration while taking into consideration the energy demand property of an individual energy consumer.;SOLUTION: A compensation standard temperature setting means 3 sets compensation standard temperature assumed in a period to be a compensation charge calculation object on the basis of the past temperature results. A standard object demand amount calculating means 6 calculates a standard object demand amount being the demand amount of an object energy consumer assumed under the compensation standard temperature on the basis of a temperature result value in the past specific period, an energy demand amount result value of a general energy consumer, and an energy demand amount result value of the object energy consumer being a calculation object of compensation charge. A compensation charge calculating means 7 calculates a compensation amount corresponding to the difference between a result object demand amount being the actual energy demand amount of the object energy consumer within a compensation charge calculation object period, inputted by an information inputting means and the standard object demand amount.;COPYRIGHT: (C)2008,JPO&INPIT
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