HIAD events | Clean Hydrogen Knowledge Hub

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23/10/2017
Japan

Leak from a hydrogen compressor

Event ID: 1199
Quality: 4
Application: Laboratory / R&D
Component involved: valve (generic)
Hydrogen supply chain stage: hydrogen on-site supply
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/08/2025

13/01/2017
Japan

Explosion at a filling hose of a hydrogen dispenser

Event ID: 1198
Quality: 5
Application: Hydrogen refuelling station
Component involved: dispenser (hose)
Hydrogen supply chain stage: Hydrogen transfer
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/08/2025

13/02/2017
Japan

Mechanical failure of a hydrogen compressor

Event ID: 1197
Quality: 4
Application: hydrogen production plant
Component involved: compressor / booster / pump (seal)
Hydrogen supply chain stage: hydrogen on-site supply
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/08/2025

19/01/2017
Japan

Several leaks from the hoses of a HRS

Event ID: 1196
Quality: 5
Application: Hydrogen refuelling station
Component involved: dispenser (hose)
Hydrogen supply chain stage: Hydrogen transfer
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/08/2025

26/12/2016
Japan

Leak from a valve in a HRS

Event ID: 1195
Quality: 4
Application: Hydrogen refuelling station
Component involved: compressor / booster / pump (valve)
Hydrogen supply chain stage: hydrogen on-site supply
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/08/2025

05/10/2015
Japan

Leak in a dispenser at a mobile HRS

Event ID: 1194
Quality: 4
Application: Hydrogen refuelling station
Component involved: dispenser (gasket)
Hydrogen supply chain stage: Hydrogen transfer
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/08/2025

03/03/2015
Japan

A hydrogen leak at a 70 MPa dispenser

Event ID: 1193
Quality: 5
Application: Hydrogen refuelling station
Component involved: joint/connection (threaded)
Hydrogen supply chain stage: Hydrogen transfer
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/08/2025

10/09/2024
France

Fire on a hydrogen pipe of a refinery

Event ID: 1192
Quality: 3
Application: Petrochemical industry
Component involved: valve (generic)
Hydrogen supply chain stage: hydrogen on-site supply
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/08/2025

09/12/2014
Japan

Fire at the storage of a hydrogen refuelling station

Event ID: 1191
Quality: 4
Application: Hydrogen refuelling station
Component involved: CGH2 tank (stationary)
Hydrogen supply chain stage: hydrogen stationary storage
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/08/2025

08/08/2025
South Korea

Leak from a LH2 tanker while parked

Event ID: 1190
Quality: 2
Application: Hydrogen transport and distribution
Component involved: piping (weld)
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