Event
- Event ID
- 1254
- Quality
- Description
A fire developed at a plant producing renewable hydrogen. The plant electrolyser that was under installation and had not started operation.
The intervention of the fire brigade enabled the rapid containment of the event, preventing involvement of the nearby photovoltaic installation.
Based on the information currently available in the public domain, the picture remains preliminary: no conclusive details have emerged regarding the technical causes of the event, the economic extent of the damage, or the outcome of a post-accidental investigation.- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- Europe
- Country
- Italy
- Date
- Component involved
- Electrolysers
- Failure mode
- leak & ignition
- Initiating cause
- unknown
- Root CAUSE analysis
The INITIATING CAUSE was some sort of confinement loss from the electrolyser system.
IGNITION SOURCE and ROOT CAUSE are unknown.- Root causes
- Unknown
- Date entry in HIAD
- 15/07/2026
Facility
- Application
- Hydrogen production
- Sub-application
- water electrolysis (AEM)
- Hydrogen supply chain stage
- All components affected
unknown
- Process temperature range [C]
- Above ambient temperature (50°C to 100°C)
- Process pressure range [MPa]
- low to medium pressure (below 2 MPa)
- Location type
- Confined
- Location
- industrial area
- Operational condition
- Description of the facility/unit/process/substances
Electrolyser capacity = 1 MW, fed by a photovoltaic park with a nominal capacity of 6.2 MW.
The first destination of the renewable hydrogen produced was for the boilers of a polymers manufacturer.
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 1
- Property loss (offsite)
- 0
- Post-event summary
One worker was taken to hospital for medical checks following smoke inhalation.
No details are known on the extension of the damage.
The photos shows fire traces limited to the electrolyser's container.
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Probable IGNITION SOURCE
References
- Sources categories
- news
- Reference & weblink
Hydrogen-news.it, 17 April 2026
Principio di incendio nell'impianto di idrogeno verde di Premosello-Chiovenda - Hydrogen-news.it
(accessed July 2026)
