Patent Number: 8,880,355

Title: Emission factor calculating apparatus and emission factor calculating method

Abstract: According to one embodiment, an emission factor calculating apparatus includes a receiving unit, a received electricity (i.e., electric power) measuring unit, a generated electricity measuring unit, and an emission factor calculating unit. The receiving unit receives an emission factor of a higher-level system at first regular intervals. The received electricity measuring unit measures, as a received electricity, electricity received from the higher-level system and accumulated. The generated electricity measuring unit measures electricity generated with zero emission in a target system. The emission factor calculating unit calculates a substantial emission factor of the target system at regular intervals (i.e., at a fixed interval), based on a ratio between the received electricity and the measured electricity generated, and the emission factor of the higher-level system. The emission factor calculating unit informs a load or a lower-level system of the substantial emission factor.

Inventors: Doi; Yusuke (Yokohama, JP), Teramoto; Keiichi (Tokyo, JP)

Assignee: Kabushiki Kaisha Toshiba

International Classification: G06F 19/00 (20110101)

Expiration Date: 2019-11-04 0:00:00