Aquamarine
Overview
StatusOperationalH2Prism earlier record
Country · regionHungaryHungarian Gas Storage Ltd · Békés CountyHungarian Gas Storage Ltd
TechnologyPEMInternational Energy Agency · as of 2026
ProductH2International Energy Agency · as of 2026
Capacity2 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.
Details
Technology & product
ComponentsElectrolyser (PEM)Hungarian Gas Storage Ltd
Project Typehydrogen production facility
Status & timeline
Date online (tracker field)2023 (meaning under review)International Energy Agency · as of 2026
Location & names
Site NameKardoskút Underground Gas StorageHungarian Gas Storage Ltd
AliasAMPHungarian Gas Storage Ltd
Local NameAkvamarinHungarian Gas Storage Ltd
Official NameAquamarine; AkvamarinHungarian Gas Storage Ltd
Additional project information
Administrative AreaKardoskutInternational Energy Agency · as of 2026
CountryHungaryInternational Energy Agency · as of 2026
Progress StatusOperationalInternational Energy Agency · as of 2026
Capacity (kt H2/y)0.3 kt H2/yInternational Energy Agency · as of 2026
Capacity (Nm³ H₂/h)385 Nm³ H₂/hInternational Energy Agency · as of 2026
Capacity (Announced Size)2 MWInternational Energy Agency · as of 2026
Timeline
- Construction start : 2023-03-24Hungarian Gas Storage Ltd
- First production : 2025Hungarian Gas Storage Ltd
Sources & record history
Sources
- CEENERGYNEWS Hungarian Gas Storage’s Aquamarine Project to play an active role in the decarbonisation process - CEEnergynews
- Hungarian Gas Storage Ltd Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen)
- Government of Hungary Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben)
- Hungarian Gas Storage Ltd Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf)
- H2Prism earlier record (SRC-C-P200)
- International Energy Agency IEA Hydrogen Projects dataset Shared by 10 fields: Snapshot 2026-06-18 · Confidence: reported · Older value (2026)
- https://kormany.hu Új korszak kezdődik a magyar energia- és hidrogéngazdaság történetében | Magyarország Kormánya
- Hungarian Gas Storage Ltd Hungarian Gas Storage Ltd (https://mfgt.hu/en/Akvamarin)
- H2Prism earlier record (SRC-S3)
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 | Aquamarine | View exact valueAquamarine | Hungarian Gas Storage’s Aquamarine Project to play an active role in the decarbonisation process - CEEnergynews | Current | |
| Site Name | Kardoskút Underground Gas Storage | View exact valueKardoskút Underground Gas Storage | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen); Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben); Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Administrative Area | Békés County | View exact valueBékés County | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen); Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben); Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Alias | AMP | View exact value[{"kind":"other_spelling","name":"AMP"}] | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen); Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben); Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Country | Hungary | View exact valueHUN | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen); Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben); Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Local Name | Akvamarin | View exact valueAkvamarin | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen); Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben); Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Official Name | Aquamarine; Akvamarin | View exact value[{"lang":"en","name":"Aquamarine","evidence":["E-01"]},{"lang":"hu","name":"Akvamarin","evidence":["E-02"]}] | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen); Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben); Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Components | Electrolyser (PEM) | View exact value{"kind":"전해조","tech":"PEM","tech_raw":"proton exchange membrane (PEM) technology","component_id":"CMP-1"} | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Hirek/2026/megujulo_hidrogen); Government of Hungary (https://kormany.hu/hirek/uj-korszak-kezdodik-a-magyar-energia-es-hidrogengazdasag-torteneteben); Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Product | H2 | View exact valueH2 | IEA Hydrogen Projects dataset | — | — |
| Project Type | hydrogen production facility | View exact valuehydrogen_production_facility | Új korszak kezdődik a magyar energia- és hidrogéngazdaság történetében | Magyarország Kormánya | Current | |
| Technology | PEM | View exact valuePEM | IEA Hydrogen Projects dataset | — | — |
| Capacity | 2 MW | View exact value2 MW | IEA Hydrogen Projects dataset | — | — |
| Event | Construction start : 2023-03-24 | View exact value{"date":"2023-03-24","tags":{"as_of":"2023-03-24","source":"Hungarian Gas Storage Ltd","evidence":["E-05"],"judged_by":"transcription","confidence":"high","accessed_at":"2026-08-18T00:00:00+09:00"},"ev_type":"EV-10","event_id":"V-01","raw_date_text":"on March 24, 2023, the on-site civil, mechanical, electrical and instrumentation/process control construction works ... were completed","date_precision":"day"} | Hungarian Gas Storage Ltd (https://mfgt.hu/en/Akvamarin); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Event | First production : 2025 | View exact value{"date":"2025","tags":{"as_of":"2025","source":"Hungarian Gas Storage Ltd","evidence":["E-04"],"judged_by":"transcription","confidence":"high","accessed_at":"2026-08-18T00:00:00+09:00"},"ev_type":"EV-12","event_id":"V-02","raw_date_text":"a 2025. évben ... megkezdte ... a hidrogéngáz (H2) termelését","date_precision":"year"} | Hungarian Gas Storage Ltd (https://mfgt.hu/-/media/MFGT/IIR/Vallalati_riport/MFGT-IIR-EGIR-vallalati_riport-2025.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Event | Date online : 2023 | View exact value{"date":"2023","date_precision":"year","event":"Date online","basis":"iea_hydrogen_projects_raw.csv"} | IEA Hydrogen Projects dataset | — | — |
| Progress Status | Operational | View exact valueOperational | H2Prism earlier record (SRC-S3); H2Prism earlier record (SRC-S3) | Older value | |
| Administrative Area | Kardoskut | View exact valueKardoskut | IEA Hydrogen Projects dataset | — | — |
| Country | Hungary | View exact valueHungary | IEA Hydrogen Projects dataset | — | — |
| Progress Status | Operational | View exact valueOperational | IEA Hydrogen Projects dataset | — | — |
| Capacity (kt H2/y) | 0.3 kt H2/y | View exact value0.2998615384615385 kt H2/y | IEA Hydrogen Projects dataset | — | — |
| Capacity (Nm³ H₂/h) | 385 Nm³ H₂/h | View exact value384.61538461538464 Nm³ H₂/h | IEA Hydrogen Projects dataset | — | — |
| Capacity (Announced Size) | 2 MW | View exact value2MW | IEA Hydrogen Projects dataset | — | — |
Record history
1 current sourced value · 14 older values · Record updated