This entry refer to a series of events occurred before the date given, which corresponds to the publication of the evidences at the Int. Conference on Hydrogen Safety 2015. The nozzle/receptacle connection froze when refuelling the on-board hydrogen storage system at the lowest precooling temperature of -40 C. However, freezing did not cause apparatus damage nor hydrogen leakage. The nozzle/receptacle is thus able to fuel safely even if the nozzle/receptacle is stuck due to ice.

The incident consisted of a leakage of potassium hydroxide solution (KOH) from an alkaline electrolyzer in a renewable hydrogen production plant. One webpage news reported that smoke formation triggered the fire alarm system. According to the manufacturer, the equipment shut down and automatically went into safety mode in accordance with the integrated safety system.Nobody was injured in the event and there was no damage on the environment.

A hydrogen and batteries driven aircraft was forced to land after a flight incident. According to the aircraft company the aircraft was forced to an emergency landing, but landed normally on its wheels in a flat grass field and almost came to a stop, but was damaged as it caught the left main gear and wing in the uneven terrain at the end of the field at low speed.According to the sources, the flight conformed to the approved test route over the airport, and that the aircraft structural integrity was maintained throughout the incident sequence.

A truck driver carrying compressed gas cylinders loaded on pallets stopped on the emergency stop lane of a highway after a tyre burst. The gases transported were: 120 m of oxygen, 24 acetylene cylinders, 106.80 m of hydrogen, 120 m of nitrogen, and 3.6 m of B20 balloon gas. Seeing smoke from an axle, the driver of the vehicle uncoupled and moved the tractor away and warned the emergency services. Firemen were called to stop the fire: they extinguished the fire kept cooled the gas bottles and extinguished the fire two and a half hours later.

The boat was performing a drive test when one of the 280 lead gel batteries exploded and took fire. The local fire brigade was able to extinguish the fire but the above deck section of the boat was extensively damaged. According to Volger and to Wannemacher (see references), the automatic fire-alarm system of the hydrogen storage and the fuel cells were "brought in a safe state" and did not suffered any damage.

A fire started on the brakes of a truck carrying hydrogen. Due to the risk of extension of the fire to the hydrogen, the fire brigade install an emergency area until the fire is extinguished.There has been no release of hydrogen.

This near miss occurred at a CHP plant operation with a SOFC. During the heating phase, the SOFC stopped due to the opening of the mainpower switch.This was due to a contact problem inside the SOFC module, but the reason was not clear at first.

A vehicle overlooked into a road, overlooking the presence of another vehicles. The latter tried to avoid the accident by crossing to the other lane, occupied by a FCEV. The car was hit in the front.

The FCEV driver did hit a pole with the left front at a relative low speed.

A truck conventional truck moved to another lane and did not see the FCEV. The collision caused a total loss to the latter.