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.

damage of shipping containers of a ship, reaction of phosphor pentoxide with wine leads to phosphoric acid and hydrogen