Obayashi geothermal hydrogen
Overview
StatusGreen hydrogen production began in July 2021; subsequent documented supply/use includes a 2023 fuel-cell bus supply
Country · regionJapan · 九重町, 玖珠郡, 大分県, 日本
TechnologyOther ElectrolysisInternational Energy Agency · as of 2026
Productgreen hydrogen / グリーン水素
Capacity0.045 MWInternational Energy Agency · as of 2026
Capacity values retain their recorded units and scope. MW, kt H₂/y and Nm³ H₂/h are different measures; this page does not convert or add them without a shared operating basis. “Other Electrolysis” and “Unknown PtX” are recorded classifications, not a specific electrolyzer design or power-to-X route.
Details
Technology & product
Configuration DetailUnknown PtXInternational Energy Agency · as of 2026
Final Usefuel for Toyota hydrogen-engine vehicle
Power Sourcegeothermal-generated electricity / 地熱発電電力
Project Typedemonstration project / 実証プラント
Capacity & economics
Production Volume10Nm³/h
Status & timeline
Lifecycle Stagecompleted and shipping started / 竣工・出荷開始
Date online (tracker field)2020 (meaning under review)International Energy Agency · as of 2026
Additional project information
Progress StatusDemoInternational Energy Agency · as of 2026
ProductH2International Energy Agency · as of 2026
Capacity (Nm³ H₂/h)10 Nm³ H₂/hInternational Energy Agency · as of 2026
Capacity (Announced Size)10m3 H2/hInternational Energy Agency · as of 2026
Capacity (kt H2/y)0.008 kt H2/yInternational Energy Agency · as of 2026
Timeline
No recorded project events.
Sources & record history
Sources
- Obayashi Corporation 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 Shared by 9 fields: Current
- International Energy Agency IEA Hydrogen Projects dataset Shared by 9 fields: Snapshot 2026-06-18 · Confidence: reported · Older value (2026)
- Obayashi Corporation 水素｜大林組のグリーンエネルギー事業｜大林組
Field sources
Shared date, confidence and value status appear once with their source above; a dash in the table refers to that source context.
| Field | Shown value | Original value | Source | Date basis | Meaning |
|---|---|---|---|---|---|
| Name | Obayashi geothermal hydrogen | View exact valueObayashi geothermal hydrogen | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Administrative Area | 九重町, 玖珠郡, 大分県, 日本 | View exact value九重町, 玖珠郡, 大分県, 日本 | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Country | Japan | View exact valueJapan | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Configuration Detail | Unknown PtX | View exact valueUnknown PtX | IEA Hydrogen Projects dataset | — | — |
| Final Use | fuel for Toyota hydrogen-engine vehicle | View exact valuefuel for Toyota hydrogen-engine vehicle | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Power Source | geothermal-generated electricity / 地熱発電電力 | View exact valuegeothermal-generated electricity / 地熱発電電力 | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Product | green hydrogen / グリーン水素 | View exact valuegreen hydrogen / グリーン水素 | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Project Type | demonstration project / 実証プラント | View exact valuedemonstration project / 実証プラント | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Technology | Other Electrolysis | View exact valueOther Electrolysis | IEA Hydrogen Projects dataset | — | — |
| Capacity | 0.045 MW | View exact value0.045 MW | IEA Hydrogen Projects dataset | — | — |
| Production Volume | 10Nm³/h | View exact value10Nm³/h | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Event | Date online : 2020 | View exact value{"date":"2020","date_precision":"year","event":"Date online","basis":"iea_hydrogen_projects_raw.csv"} | IEA Hydrogen Projects dataset | — | — |
| Lifecycle Stage | completed and shipping started / 竣工・出荷開始 | View exact valuecompleted and shipping started / 竣工・出荷開始 | 地熱発電およびグリーン水素製造の実証プラントが完成、地産地消に向けて出荷を開始 | — | |
| Progress Status | Green hydrogen production began in July 2021; subsequent documented supply/use includes a 2023 fuel-cell bus supply | View exact valueGreen hydrogen production began in July 2021; subsequent documented supply/use includes a 2023 fuel-cell bus supply | 水素｜大林組のグリーンエネルギー事業｜大林組 | Current | |
| Progress Status | Demo | View exact valueDEMO | IEA Hydrogen Projects dataset | — | — |
| Product | H2 | View exact valueH2 | IEA Hydrogen Projects dataset | — | — |
| Capacity (Nm³ H₂/h) | 10 Nm³ H₂/h | View exact value10 Nm³ H₂/h | IEA Hydrogen Projects dataset | — | — |
| Capacity (Announced Size) | 10m3 H2/h | View exact value10m3 H2/h | IEA Hydrogen Projects dataset | — | — |
| Capacity (kt H2/y) | 0.008 kt H2/y | View exact value0.0077963999999999985 kt H2/y | IEA Hydrogen Projects dataset | — | — |
Record history
9 current sourced values · 4 older values · Record updated