Energy utilization system, management device, and program

The energy utilization system with fuel cell power generation and a management device addresses hydrogen storage needs by calculating cartridge ratios and energy use, ensuring optimal hydrogen supply in off-grid buildings.

WO2026126525A1 Publication Date: 2026-06-18MISAWA HOMES CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
MISAWA HOMES CO LTD
Filing Date
2025-04-25
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

The challenge is to enable appropriate hydrogen storage in buildings while determining the hydrogen needs for these structures, particularly in off-grid societies where power transmission networks are absent, using fuel cell power generation equipment to reduce environmental impact.

⚗Method used

An energy utilization system with fuel cell power generation devices and a management device that calculates the ratio of empty hydrogen cartridges, compares this ratio to a predetermined value, and determines the need for additional cartridges based on residual energy, predicted energy use, and renewable energy generation.

🎯Benefits of technology

Accurately determines the need for hydrogen cartridges, ensuring adequate storage and preventing unnecessary additions, thereby optimizing hydrogen supply in off-grid buildings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention addresses the problem of enabling storage of an appropriate amount of hydrogen in a building such as a house while enabling determination of the need for additionally supplying hydrogen to the building.　This energy utilization system comprises a plurality of buildings (10) and a management device (40). The buildings (10) each have a fuel cell-type power generation device (23) supplied with hydrogen from a plurality of cartridges (20). The management device (40) determines, for each building (10), the need for addition of a cartridge (20) filled with hydrogen. The management device (40) executes: a first calculation process of calculating, for each building (10), the ratio of the number of empty cartridges (20) to the total number of the cartridges (20); a comparison process of comparing the ratio calculated by the first calculation process with a predetermined value; and a determination process of determining that addition of the cartridge (20) filled with hydrogen is necessary when the ratio exceeds the predetermined value as the result of the comparison by the comparison process.
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