HIAD events | Clean Hydrogen Knowledge Hub

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26/10/1977
United Kingdom

Fire from a hydrogen pipe

Event ID: 539
Quality: 2
Application: Hydrogen stationary storage
Component involved: pipe (generic)
Hydrogen supply chain stage: hydrogen storage
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

02/07/1974
United States

Fire in a food processing plant

Event ID: 538
Quality: 2
Application: Chemical industry
Component involved: PRD (valve)
Hydrogen supply chain stage: Hydrogen as feedstock
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/01/2026

20/05/1974
United States

Nuclear power plant off-gas explosion

Event ID: 537
Quality: 2
Application: Power plant
Component involved: off-gas system (pipe)
Hydrogen supply chain stage: Unintended hydrogen production - radiolysis
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/01/2026

08/02/1974
United States

Explosion in a metal treatment unit

Event ID: 536
Quality: 2
Application: Steel and metals industry
Component involved: reactor / oven / furnace / test chamber
Hydrogen supply chain stage: Hydrogen as process gas
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/01/2026

22/01/1974
United States

Explosion at a chlorine production plant

Event ID: 535
Quality: 2
Application: Chemical industry
Component involved: electrolytic cell
Hydrogen supply chain stage: hydrogen as by-product
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/01/2026

25/05/1894
Germany

Burst of hydrogen storage tank in a military facility

Event ID: 534
Quality: 5
Application: Non-road vehicles
Component involved: CGH2 tank (stationary)
Hydrogen supply chain stage: hydrogen storage
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

23/10/2001
Australia

Explosion in a hydrogen production plant

Event ID: 533
Quality: 4
Application: Hydrogen production
Component involved: pipe (generic)
Hydrogen supply chain stage: hydrogen storage
Nature of the consequences: explosion followed by a fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

01/01/1973
United States

Leak at a hydrogen compressor of a refinery

Event ID: 532
Quality: 2
Application: Petrochemical industry
Component involved: compressor / booster / pump
Hydrogen supply chain stage: Hydrogen compression
Nature of the consequences: leak no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 28/01/2026

27/07/1984
European Union

Explosion from a venting valve

Event ID: 531
Quality: 2
Application: Unknown
Component involved: valve (generic)
Hydrogen supply chain stage: hydrogen storage
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

15/02/1995
Germany

Explosion at a silicon coating plant

Event ID: 530
Quality: 3
Application: Chemical industry
Component involved: reactor / oven / furnace / test chamber
Hydrogen supply chain stage: Unintended hydrogen production - chemical reaction
Nature of the consequences: explosion followed by a fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020