It will take years to know who is responsible. For experts, they can quickly find out where exactly the fire started: they can locate the exact spot. This is when it becomes complex: the operation and construction of the devices that were there will be minutely examined. This can then go in all directions. It could be a design fault (that one can find on any new device) or a manufacturing defect in a particular device, or an employee's faulty action. These are very fascinating reports to read - and are also part of my work. Even on National Geographic, you occasionally see such reports, how they can figure out the exact cause of a plane crash: once it was about 1 screw that they had forgotten to fit. Of course, the claimant (Multiobus) will be reimbursed by its insurers. We are obviously talking about many millions of euros here and it will be clear that they will search here until the truth is out and then the insurer of the responsible (firm) will have to reimburse everything to the other insurers. I am convinced that they will find the exact cause.
To give you an idea: about Paris and the Bolloré Bluebus (149 in dead storage): they found the reason of the fire: the faulty positioning of the mylar insulating sheet placed between 2 adjacent cells in the battery.
This was an easy case, because the other (same buses) still exists.
In the case of Multiobus, they have an indication where the fire started, but why is still being figured out.
链接