An explosion of unknown cause occurred at a hydrogen manufacturing plant. The explosion occurred on the second floor of the building, used by employees as a cafeteria and offices. The company where the accident occurred mainly produces industrial hydrogen gas and supplies it in cylinders and trailers, as well as through pipe-line. The building was damaged and three people were seriously injured. The explosion shook the ground and caused nearby workers to evacuate.

A fire developed on a tube trailer transporting 330 kg of compressed hydrogen, while travelling on a highway. The fire was due to a pressure relief valve of a tube releasing hydrogen. The flames reached 10 to 20 m. The fire brigades were able to extinguish the file in 30 minutes.The truck had left a plant of hydrogen production and storage to deliver to a refuelling station. The probable origin of the incident is a fire on the tyres of the truck, which caused the overheating of the tubes, the increase of the internal pressure and the consequent opening of the pressure relief valve.

A hydrogen car caught fire at a hydrogen fuelling station. During refuelling of a H2-fueled car the owner heard an abnormal noise and opened the fuel filler door to investigate. A small fire then occurred after the owner discharged static electricity when making contact with the fuelling cap. Fortunately, the fire suppression system of the refuelling station quickly extinguished the blaze.An analysis of this incident revealed that material from the fuel inlet receptacle filter detached shortly after fuelling was completed.

The hydrogen buffer tanks that exploded were part of an experimental facility experimenting generation of renewable hydrogen from a water electrolyzer coupled to solar panels.The three hydrogen tanks (40 m3 capacity each at pressures of 1,2 MPa one of them and 0,7 MPa the two others) were receiving the hydrogen produced by the electrolyzer. Firefighters said all three tanks were destroyed in the explosion; there was no fire, but the explosion was strong enough to send debris being scattered in an area well over 3,000 square meters.

Heavy rains (more than 600 mm in 1 day) had flood a factory manufacturing calcium core electrical conductors. The power supply was cut off. The water came into contact with the calcium stored in 150 kg containers, producing hydrogen (7.5 kg per container). The heat of reaction ignited the gas. The fire was extinguished with sand.

A hydrogen leak followed by an explosion occurred at an elbow of a pipeline cooling system and the separator of the distillation unit. The explosion destroyed the unit and injured two workers.