HIAD events | Clean Hydrogen Knowledge Hub

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11/10/2000
United Kingdom

Hydrogen accidentally produced by electropolishing

Event ID: 289
Quality: 3
Application: Unknown
Component involved: chemical storage tank
Hydrogen supply chain stage: Unintended hydrogen production - chemical reaction
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009

18/07/1975
Japan

Leak from a CGH2 tube trailer when travelling

Event ID: 288
Quality: 3
Application: Hydrogen transport and distribution
Component involved: joint/connection (gasket)
Hydrogen supply chain stage: hydrogen transport
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/08/2025

25/05/1972
Japan

Fire from a CGH2 cylinders truck

Event ID: 287
Quality: 2
Application: Hydrogen transport and distribution
Component involved: valve (generic)
Hydrogen supply chain stage: hydrogen transport
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/08/2025

02/11/1970
Japan

Fire from CGH2 cylinders on truck

Event ID: 286
Quality: 2
Application: Hydrogen transport and distribution
Component involved: valve (generic)
Hydrogen supply chain stage: hydrogen transport
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/08/2025

11/01/1965
United Kingdom

Fire in a generator of a power plant

Event ID: 285
Quality: 2
Application: Power plant
Component involved: H2 coolant system
Hydrogen supply chain stage: Hydrogen as coolant
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009

12/11/1986
United Kingdom

Fire at a generator of a power plant

Event ID: 284
Quality: 2
Application: Power plant
Component involved: H2 coolant system (rotating seal)
Hydrogen supply chain stage: Hydrogen as coolant
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009

24/06/1986
United Kingdom

Fire at a generator of a power plant

Event ID: 283
Quality: 2
Application: Power plant
Component involved: H2 coolant system (flange)
Hydrogen supply chain stage: Hydrogen as coolant
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009

27/01/1976
United States

Manual venting from a LH2 tanker in transit

Event ID: 282
Quality: 2
Application: Hydrogen transport and distribution
Component involved: LH2 tank (road tanker)
Hydrogen supply chain stage: hydrogen transport
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 20/01/2025

08/03/1983
United Kingdom

Fire at a generator of a power plant

Event ID: 281
Quality: 3
Application: Power plant
Component involved: H2 coolant system (rotating seal)
Hydrogen supply chain stage: Hydrogen as coolant
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009

15/07/1981
United Kingdom

Fire at a generator of a power plant

Event ID: 280
Quality: 2
Application: Power plant
Component involved: H2 coolant system (rotating seal)
Hydrogen supply chain stage: Hydrogen as coolant
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009