Repsol Cartagena refinery/ CHYNE Project
Overview
StatusConstruction approved; operation expected in 2029 (reported 30 September 2025)
Country · regionSpainRepsol · Region of MurciaRepsol
TechnologyWater electrolysisEuropean Clean Hydrogen Partnership · as of 2025electrolysis of waterRepsol
Productrenewable hydrogen, oxygenRepsol
Capacity100 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
Carbon Reductionup to 167,000 tons CO2 per year avoidedRepsol
Components100 MW electrolyzerSunfire
Configuration Detailten pressurized alkaline electrolyzer modules, each 10 MWSunfire
FeedstockwaterRepsol
Final Usefeedstock to manufacture essential productsRepsolPlanned use as feedstock to manufacture essential products with a lower carbon footprint at Repsol industrial sites
Power Sourceelectricity coming from renewable sourcesRepsol
Project Typelarge-scale renewable hydrogen plantRepsol
Capacity & economics
Financing155 EUR million (IDAE)Repsol
Production Volume15,000 tons renewable hydrogen/year (up to)Repsol
Total Capex>300 EUR millionRepsol
Location & names
Site NameRepsol industrial complex in CartagenaRepsol
AliasCartagena Large Scale ElectrolyzerRepsol
Official NameCHYNERepsol
Additional project information
Progress StatusConceptEuropean Clean Hydrogen Partnership · as of 2025
Timeline
- expected operational date : 2029Sunfire
Sources & record history
Sources
- European Hydrogen Observatory projects Dec2025 Shared by 3 fields: Snapshot 2025-12-01 · Confidence: reported · Older value (2025)
- Repsol CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena Shared by 7 fields: Older value
- Repsol Repsol to build its first large-scale renewable hydrogen plant in Cartagena
- Sunfire Sunfire Secures 200 MW Electrolyzer Orders in Spain Shared by 3 fields: Older value
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 | Repsol Cartagena refinery/ CHYNE Project | View exact valueRepsol Cartagena refinery/ CHYNE Project | European Hydrogen Observatory projects Dec2025 | — | — |
| Site Name | Repsol industrial complex in Cartagena | View exact valueRepsol industrial complex in Cartagena | CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena | — | |
| Administrative Area | Region of Murcia | View exact valueRegion of Murcia | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Alias | Cartagena Large Scale Electrolyzer | View exact valueCartagena Large Scale Electrolyzer | CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena | — | |
| Country | Spain | View exact valueSpain | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Official Name | CHYNE | View exact valueCHYNE | CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena | — | |
| Carbon Reduction | up to 167,000 tons CO2 per year avoided | View exact valueup to 167,000 tons CO2 per year avoided | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Components | 100 MW electrolyzer | View exact value100 MW electrolyzer | Sunfire Secures 200 MW Electrolyzer Orders in Spain | — | |
| Configuration Detail | ten pressurized alkaline electrolyzer modules, each 10 MW | View exact valueten pressurized alkaline electrolyzer modules, each 10 MW | Sunfire Secures 200 MW Electrolyzer Orders in Spain | — | |
| Feedstock | water | View exact valuewater | CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena | — | |
| Final Use | feedstock to manufacture essential products | View exact valuefeedstock to manufacture essential products | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Final Use | Planned use as feedstock to manufacture essential products with a lower carbon footprint at Repsol industrial sites | View exact valuePlanned use as feedstock to manufacture essential products with a lower carbon footprint at Repsol industrial sites | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Current | |
| Power Source | electricity coming from renewable sources | View exact valueelectricity coming from renewable sources | CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena | — | |
| Product | renewable hydrogen, oxygen | View exact value["renewable hydrogen","oxygen"] | CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena | — | |
| Project Type | large-scale renewable hydrogen plant | View exact valuelarge-scale renewable hydrogen plant | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Technology | Water electrolysis | View exact valueWater electrolysis | European Hydrogen Observatory projects Dec2025 | — | — |
| Technology | electrolysis of water | View exact valueelectrolysis of water | CHYNE | Electrolyzer at the Repsol industrial complex in Cartagena | — | |
| Capacity | 100 MW | View exact value100 MW | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Current | |
| Financing | 155 EUR million (IDAE) | View exact value{"value":155,"currency":"EUR million","provider":"IDAE"} | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Production Volume | 15,000 tons renewable hydrogen/year (up to) | View exact value{"unit":"tons renewable hydrogen/year","value":15000,"qualifier":"up to"} | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Total Capex | >300 EUR million | View exact value{"value":">300","currency":"EUR million"} | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Older value | |
| Event | expected operational date : 2029 | View exact value{"date":"2029","event":"expected operational date","date_precision":"year"} | Sunfire Secures 200 MW Electrolyzer Orders in Spain | — | |
| Progress Status | Construction approved; operation expected in 2029 (reported 30 September 2025) | View exact valueConstruction approved; operation expected in 2029 (reported 30 September 2025) | Repsol to build its first large-scale renewable hydrogen plant in Cartagena | Current | |
| Progress Status | Concept | View exact valueannounced_or_planned | European Hydrogen Observatory projects Dec2025 | — | — |
Record history
3 current sourced values · 19 older values · Record updated