Hydrogen City, phase 1
Overview
StatusFeasibilityInternational Energy Agency · as of 2026
Country · regionUnited StatesGreen Hydrogen International Corp. via PR Newswire · US-TX - Duval CountyGreen Hydrogen International Corp. via PR Newswire
TechnologyOther ElectrolysisInternational Energy Agency · as of 2026
ProductH2International Energy Agency · as of 2026
Capacity2000 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
ComponentsElectrolyser (Other electrolysis)Green Hydrogen International Corp. via PR Newswire
Configuration DetailUnknown PtXInternational Energy Agency · as of 2026
Project GroupHydrogen City, Texas (Phase 1)Green Hydrogen International Corp. via PR Newswire
Project Typehydrogen production facilityGreen Hydrogen International Corp. via PR Newswire
Status & timeline
Event3 March 2022: Green Hydrogen International announced plans for a first phase with 2 GW of production and two storage caverns at the Piedras Pintas salt dome.
Date online (tracker field)2030 (meaning under review)International Energy Agency · as of 2026
Location & names
Site NamePiedras Pintas Salt DomeGreen Hydrogen International Corp. via PR Newswire
AliasHydrogen CityGreen Hydrogen International Corp. via PR Newswire
Official NameHydrogen City, TexasGreen Hydrogen International Corp. via PR Newswire
Additional project information
Administrative AreaDuval county,TexasInternational Energy Agency · as of 2026
CountryUnited StatesInternational Energy Agency · as of 2026
Capacity (Nm³ H₂/h)444,444 Nm³ H₂/hInternational Energy Agency · as of 2026
Capacity (kt H2/y)347 kt H2/yInternational Energy Agency · as of 2026
Capacity (Announced Size)2 GWInternational Energy Agency · as of 2026
Timeline
- Announcement : 2022-03-03Green Hydrogen International Corp. via PR Newswire
- Target start of operation : 2029INPEX Corporation and Green Hydrogen International
Sources & record history
Sources
- IEA Hydrogen Projects dataset Shared by 12 fields: Snapshot 2026-06-18 · Confidence: reported · Older value (2026)
- Green Hydrogen International Corp. via PR Newswire Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html)
- H2Prism earlier record (SRC-C-P200)
- INPEX Corporation and Green Hydrogen International INPEX Corporation and Green Hydrogen International (https://www.inpex.co.jp/english/news/assets/pdf/20231012.pdf)
- Green Hydrogen International Corp. via PR Newswire Green Hydrogen International Announces Hydrogen City, Texas - The World's Largest Green Hydrogen Production and Storage Hub
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 | Hydrogen City, phase 1 | View exact valueHydrogen City, phase 1 | IEA Hydrogen Projects dataset | — | — |
| Site Name | Piedras Pintas Salt Dome | View exact valuePiedras Pintas Salt Dome | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Administrative Area | US-TX - Duval County | View exact valueUS-TX - Duval County | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Alias | Hydrogen City | View exact value[{"kind":"other_spelling","name":"Hydrogen City"}] | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Country | United States | View exact valueUSA | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Official Name | Hydrogen City, Texas | View exact value[{"lang":"en","name":"Hydrogen City, Texas","evidence":["E-01"]}] | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Components | Electrolyser (Other electrolysis) | View exact value{"kind":"전해조","tech":"그 외 전해","tech_raw":"maximum utilization of electrolysers","component_id":"CMP-1"} | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Configuration Detail | Unknown PtX | View exact valueUnknown PtX | IEA Hydrogen Projects dataset | — | — |
| Product | H2 | View exact valueH2 | IEA Hydrogen Projects dataset | — | — |
| Project Group | Hydrogen City, Texas (Phase 1) | View exact value{"exists":true,"evidence":["E-01","E-02"],"group_name":"Hydrogen City, Texas","phase_name":"Phase 1","phase_order":1} | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Project Type | hydrogen production facility | View exact valuehydrogen_production_facility | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Technology | Other Electrolysis | View exact valueOther Electrolysis | IEA Hydrogen Projects dataset | — | — |
| Capacity | 2000 MW | View exact value2000 MW | IEA Hydrogen Projects dataset | — | — |
| Event | Announcement : 2022-03-03 | View exact value{"date":"2022-03-03","tags":{"as_of":"2022-03-03","source":"Green Hydrogen International Corp. via PR Newswire","evidence":["E-01"],"judged_by":"transcription","confidence":"high","accessed_at":"2026-08-18T00:00:00Z"},"ev_type":"EV-01","event_id":"V-01","raw_date_text":"March 3, 2022","date_precision":"day"} | Green Hydrogen International Corp. via PR Newswire (https://www.prnewswire.com/news-releases/green-hydrogen-international-announces-hydrogen-city-texas--the-worlds-largest-green-hydrogen-production-and-storage-hub-301494988.html); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Event | Target start of operation : 2029 | View exact value{"date":"2029","tags":{"as_of":"2023-10-12","source":"INPEX and Green Hydrogen International","evidence":["E-02"],"judged_by":"transcription","confidence":"high","accessed_at":"2026-08-18T00:00:00Z"},"ev_type":"EV-14","event_id":"V-02","raw_date_text":"commercial operation planned for 2029","date_precision":"year"} | INPEX Corporation and Green Hydrogen International (https://www.inpex.co.jp/english/news/assets/pdf/20231012.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Event | 3 March 2022: Green Hydrogen International announced plans for a first phase with 2 GW of production and two storage caverns at the Piedras Pintas salt dome. | View exact value3 March 2022: Green Hydrogen International announced plans for a first phase with 2 GW of production and two storage caverns at the Piedras Pintas salt dome. | Green Hydrogen International Announces Hydrogen City, Texas - The World's Largest Green Hydrogen Production and Storage Hub | Current | |
| Event | Date online : 2030 | View exact value{"date":"2030","date_precision":"year","event":"Date online","basis":"iea_hydrogen_projects_raw.csv"} | IEA Hydrogen Projects dataset | — | — |
| Progress Status | Feasibility | View exact valueFeasibility study | IEA Hydrogen Projects dataset | — | — |
| Administrative Area | Duval county,Texas | View exact valueDuval county,Texas | IEA Hydrogen Projects dataset | — | — |
| Country | United States | View exact valueUnited States | IEA Hydrogen Projects dataset | — | — |
| Capacity (Nm³ H₂/h) | 444,444 Nm³ H₂/h | View exact value444444.4444444445 Nm³ H₂/h | IEA Hydrogen Projects dataset | — | — |
| Capacity (kt H2/y) | 347 kt H2/y | View exact value346.50666666666666 kt H2/y | IEA Hydrogen Projects dataset | — | — |
| Capacity (Announced Size) | 2 GW | View exact value2GW | IEA Hydrogen Projects dataset | — | — |
Record history
1 current sourced value · 16 older values · Record updated