HySynergy, phase 1
Overview
StatusOperationalH2Prism earlier record
Country · regionDenmarkEverfuel
TechnologyALK
ProductH2International Energy Agency · as of 2026
Capacity20 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 (ALK)Everfuel
Configuration DetailNel ASA contracted to supply a 20 MW alkaline electrolyser for HySynergy I adjacent to the Fredericia refinery; Everfuel responsible for EPC work including storage and distribution facilities (contract announced 2020-12-30).
Power SourcePlanned electricity primarily from wind power
Project GroupHySynergy (Phase I)Everfuel
Project Typehydrogen production facilityEverfuel
Status & timeline
Date online (tracker field)2025 (meaning under review)International Energy Agency · as of 2026
Location & names
Site NameHySynergy plantEverfuel
AliasHySynergy 1Everfuel
Official NameHySynergy IEverfuel
Additional project information
Administrative AreaFredericia refineryInternational Energy Agency · as of 2026
CountryDenmarkInternational Energy Agency · as of 2026
Progress StatusOperationalInternational Energy Agency · as of 2026
TechnologyALKInternational Energy Agency · as of 2026
Capacity (Announced Size)20 MWInternational Energy Agency · as of 2026
Capacity (Nm³ H₂/h)4,348 Nm³ H₂/hInternational Energy Agency · as of 2026
Capacity (kt H2/y)3.39 kt H2/yInternational Energy Agency · as of 2026
Timeline
- Equipment ordered : 2020-12Everfuel A/S
- First production : 2025-02-28Everfuel
Sources & record history
Sources
- Bioenergy International Everfuel, Shell to collaborate on a large-scale hydrogen plant in Denmark | Bioenergy International
- Everfuel Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/)
- Everfuel Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/)
- H2Prism earlier record (SRC-C-P200)
- www.everfuel.com https://www.everfuel.com/news/everfuel-signs-contract-with-nel-for-delivery-of-20-mw-electrolyser/
- Everfuel A/S Everfuel signs contract with Nel for delivery of 20 MW electrolyser
- Everfuel A/S First hydrogen produced at Europe’s largest electrolyser, HySynergy
- International Energy Agency IEA Hydrogen Projects dataset Shared by 10 fields: Snapshot 2026-06-18 · Confidence: reported · Older value (2026)
- Everfuel A/S Everfuel A/S (https://www.everfuel.com/app/uploads/2022/01/EverfuelAnnualReport28april2020.pdf)
- 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 | HySynergy, phase 1 | View exact valueHySynergy, phase 1 | Everfuel, Shell to collaborate on a large-scale hydrogen plant in Denmark | Bioenergy International | Current | |
| Site Name | HySynergy plant | View exact valueHySynergy plant | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Alias | HySynergy 1 | View exact value[{"kind":"other_spelling","name":"HySynergy 1"}] | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Country | Denmark | View exact valueDNK | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Official Name | HySynergy I | View exact value[{"lang":"en","name":"HySynergy I","evidence":["E-01"]}] | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Components | electrolyser (ALK) | View exact value{"kind":"electrolyser","tech":"ALK","tech_raw":"alkaline electrolyser","component_id":"CMP-1"} | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Configuration Detail | Nel ASA contracted to supply a 20 MW alkaline electrolyser for HySynergy I adjacent to the Fredericia refinery; Everfuel responsible for EPC work including storage and distribution facilities (contract announced 2020-12-30). | View exact valueNel ASA contracted to supply a 20 MW alkaline electrolyser for HySynergy I adjacent to the Fredericia refinery; Everfuel responsible for EPC work including storage and distribution facilities (contract announced 2020-12-30). | https://www.everfuel.com/news/everfuel-signs-contract-with-nel-for-delivery-of-20-mw-electrolyser/ | Current | |
| Power Source | Planned electricity primarily from wind power | View exact valuePlanned electricity primarily from wind power | Everfuel signs contract with Nel for delivery of 20 MW electrolyser; First hydrogen produced at Europe’s largest electrolyser, HySynergy | Current | |
| Product | H2 | View exact valueH2 | IEA Hydrogen Projects dataset | — | — |
| Project Group | HySynergy (Phase I) | View exact value{"exists":true,"evidence":["E-05"],"group_name":"HySynergy","phase_name":"Phase I","phase_order":1} | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Project Type | hydrogen production facility | View exact valuehydrogen_production_facility | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); Everfuel (https://www.everfuel.com/news/first-hydrogen-produced-at-europes-largest-electrolyser-hysynergy/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Technology | ALK | View exact valueALK | Everfuel signs contract with Nel for delivery of 20 MW electrolyser; First hydrogen produced at Europe’s largest electrolyser, HySynergy | Current | |
| Capacity | 20 MW | View exact value20 MW | IEA Hydrogen Projects dataset | — | — |
| Event | Equipment ordered : 2020-12 | View exact value{"date":"2020-12","tags":{"as_of":"2020-12","source":"Everfuel Annual Report 2020","evidence":["E-03"],"judged_by":"transcription","confidence":"high","accessed_at":"2026-08-17T17:45:42Z"},"ev_type":"EV-08","event_id":"V-01","raw_date_text":"In late December 2020, Everfuel signed an EUR 7.25 million contract with Nel ASA for the delivery of a 20 MW alkaline electrolyser","date_precision":"month"} | Everfuel A/S (https://www.everfuel.com/app/uploads/2022/01/EverfuelAnnualReport28april2020.pdf); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Event | First production : 2025-02-28 | View exact value{"date":"2025-02-28","tags":{"as_of":"2025-02-28","source":"Everfuel","evidence":["E-04"],"judged_by":"transcription","confidence":"high","accessed_at":"2026-08-17T17:45:42Z"},"ev_type":"EV-12","event_id":"V-02","raw_date_text":"the first production and delivery of hydrogen to the Crossbridge Energy refinery","date_precision":"day"} | Everfuel (https://www.everfuel.com/news/everfuel-first-hydrogen-delivery-to-crossbridge-energy-successfully-completed/); H2Prism earlier record (SRC-C-P200); H2Prism earlier record (SRC-C-P200) | Older value | |
| Event | Date online : 2025 | View exact value{"date":"2025","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 | Fredericia refinery | View exact valueFredericia refinery | IEA Hydrogen Projects dataset | — | — |
| Country | Denmark | View exact valueDenmark | IEA Hydrogen Projects dataset | — | — |
| Progress Status | Operational | View exact valueOperational | IEA Hydrogen Projects dataset | — | — |
| Technology | ALK | View exact valueALK | IEA Hydrogen Projects dataset | — | — |
| Capacity (Announced Size) | 20 MW | View exact value20MW | IEA Hydrogen Projects dataset | — | — |
| Capacity (Nm³ H₂/h) | 4,348 Nm³ H₂/h | View exact value4347.826086956522 Nm³ H₂/h | IEA Hydrogen Projects dataset | — | — |
| Capacity (kt H2/y) | 3.39 kt H2/y | View exact value3.3897391304347826 kt H2/y | IEA Hydrogen Projects dataset | — | — |
Record history
3 current sourced values · 13 older values · Record updated