Power demand estimation apparatus, power demand estimation method, and program

A power demand estimation method, comprising:

• an error measuring step of measuring an error of estimated power demand estimated with respect to one or more customer facilities;
• an error addition step of obtaining an added error obtained by adding errors measured with respect to segment periods in a unit term for correction, the unit term for correction including a predetermined number of consecutive series of segment periods;
• and
• a power demand estimation step of estimating power demand values with respect to the respective segment periods, and correcting the estimated power demand value estimated with respect to last predetermined number of segment period in the unit term for correction, based on an added error obtained with respect to the segment periods preceding the last predetermined number of segment period in the unit term for correction.

A power demand estimation program for causing a computer to execute:

• an error measuring step of measuring an error of estimated power demand estimated with respect to one or more customer facilities;
• an error addition step of obtaining an added error obtained by adding errors measured with respect to segment periods in a unit term for correction, the unit term for correction including a predetermined number of consecutive series of segment periods;
• and
• a power demand estimation step of estimating power demand values with respect to the respective segment periods, and correcting the estimated power demand value estimated with respect to last predetermined number of segment period in the unit term for correction, based on an added error obtained with respect to the segment periods preceding the last predetermined number of segment periods in the unit term for correction.