# US 12,009,664 B2 · Power management system and power management method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,664 B2 - Document ID: US12009664B2 - Status: Granted - Kind: B2 - Application number: 17/763,639 - Filed: 2020-09-17 - Published: 2022-10-20 - Granted: 2024-06-11 - Earliest claimed: 2019-09-26 - Assignees: KYOCERA Corporation - Applicants: Kyocera Corporation - Inventors: Yuichi Moriyama - Web page: https://patentgrep.com/patent/US12009664B2 ## CPC - H02J 3/381: {Dispersed generators} - G06Q 10/063: Operations research, analysis or management - G06Q 10/20: Administration of product repair or maintenance - G06Q 30/0206: {Price or cost determination based on market factors} - G06Q 50/06: Energy or water supply - H02J 3/28: Arrangements for balancing of the load in networks by storage of energy - H02J 13/13: characterised by the transmission of data to equipment in the power network - H02J 13/1337: {involving the use of Internet protocols} - H02J 2101/22: Solar energy - H02J 2101/24: Photovoltaics - H02J 2101/30: Fuel cells - H04L 41/5029: {Service quality level-based billing, e.g. dependent on measured service level customer is charged more or less} - H04L 43/065: related to network devices - Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation - Y04S 10/12: Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation - Y04S 10/14: Energy storage units - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS ## Abstract A power management system includes a facility including an adjustment power supply to which feed-in tariff is applied. The power management system includes an equipment management apparatus that manages the adjustment power supply, and a power management server that manages a reverse power flow output from the facility to a power grid. The equipment management apparatus includes a transmitter transmitting, to the power management server, a message including an information element with which an expiration timing of a period to which the feed-in tariff is applied is allowed to be specified. ## Claims ### Claim 1 A power management system comprising a facility comprising an adjustment power supply to which feed-in tariff is applied, the power management system comprising: an equipment management apparatus configured to manage the adjustment power supply; and a power management server configured to manage a reverse power flow output from the facility to a power grid, wherein the equipment management apparatus comprises a transmitter configured to transmit, to the power management server, a message comprising an information element with which an expiration timing of a period to which the feed-in tariff is applied is allowed to be specified, and the information element comprises at least any one of (i) an information element specifying an equipment certification date of the adjustment power supply, (ii) an information element specifying an equipment certification date of at least one of a power storage apparatus or a fuel cell apparatus provided in the facility, (iii) an information element specifying an equipment certification capacity of the adjustment power supply, or (iv) an information element specifying an equipment certification capacity of at least one of the power storage apparatus or the fuel cell apparatus provided in the facility. ### Claim 2 (depends on 1) The power management system according to claim 1, wherein the information element comprises an information element specifying an expiration date of a period to which the feed-in tariff is applied. ### Claim 3 (depends on 1) The power management system according to claim 1, wherein the information element comprises a flag indicating whether the feed-in tariff is applied. ### Claim 4 (depends on 1) The power management system according to claim 1, wherein the transmitter periodically transmits the message to the power management server. ### Claim 5 (depends on 1) The power management system according to claim 1, wherein the transmitter transmits the message to the power management server at a predetermined timing, the predetermined timing is one or more timings selected from a firmware update timing of the adjustment power supply, a maintenance timing of the adjustment power supply, a power failure recovery timing of the facility, an extension timing of the adjustment power supply, a removal timing of the adjustment power supply, and an owner change timing of the adjustment power supply. ### Claim 6 A power management method in a power management system comprising a facility with an adjustment power supply to which feed-in tariff is applied, the power management method comprising: transmitting, by an equipment management apparatus configured to manage the adjustment power supply, to a power management server configured to manage a reverse power flow output from the facility to a power grid, a message comprising an information element with which an expiration timing of a period to which the feed-in tariff is applied is allowed to be specified, wherein the information element comprises at least any one of (i) an information element specifying an equipment certification date of the adjustment power supply, (ii) an information element specifying an equipment certification date of at least one of a power storage apparatus or a fuel cell apparatus provided in the facility, (iii) an information element specifying an equipment certification capacity of the adjustment power supply, or (iv) an information element specifying an equipment certification capacity of at least one of the power storage apparatus or the fuel cell apparatus provided in the facility.