Aquamarine

Hungary · Békés County

Overview

StatusConcept

Country · regionHungary · Békés County

TechnologyWater electrolysis

Capacity2 MW

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)

Project Typehydrogen production facility

Location & names

Site NameKardoskút Underground Gas Storage

AliasAMP

Local NameAkvamarin

Official NameAquamarine; Akvamarin

Timeline

Construction start : 2023-03-24
First production : 2025

Sources & record history

Sources

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)
European Clean Hydrogen Partnership European Hydrogen Observatory projects Dec2025 Shared by 3 fields: Snapshot 2025-12-01 · Confidence: reported · Older value (2025)
Hungarian Gas Storage Ltd Hungarian Gas Storage Ltd (https://mfgt.hu/en/Akvamarin)

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 value `Aquamarine`	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
Site Name	Kardoskút Underground Gas Storage	View exact value `Kardoskút 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 value `Békés 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 value `HUN`	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 value `Akvamarin`	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
Project Type	hydrogen production facility	View exact value `hydrogen_production_facility`	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
Technology	Water electrolysis	View exact value `Water electrolysis`	European Hydrogen Observatory projects Dec2025	—	—
Capacity	2 MW	View exact value `2 MW`	European Hydrogen Observatory projects Dec2025	—	—
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
Progress Status	Concept	View exact value `announced_or_planned`	European Hydrogen Observatory projects Dec2025	—	—

Record history

0 current sourced values · 13 older values · Record updated 26 Sep 2026