Electric buses of any kind are insane imo and something very bad is going to happen.
Watch this video of Dr. Christensen - he starts at the 1 minute mark and there is a brief commercial for the fire conference in the middle but its only about 30 minutes. You will learn a lot.
I have tremendous respect for him but I disagree with some of his opinions like “we have to park these in underground garages”. Regardless of what just started the Luton parking garage fire (Hybrid or Diesel, who cares because fires happen) it is a question of fuel loading and what happens to concrete and steel at such temperatures. He talks about that a little bit in this video but for fire protection engineering and design nobody is taking into account 4 EV’s (or more) burning in one area of an older underground car park at a bank of charging stations.
They DO burn hotter and longer and they weigh more. Concrete does not react well to really high temperatures.
Another thing to consider about “school buses” is that they will be the equivalent of 5-7 90kWh Tesla batteries in one vehicle. Most packs are underneath the bus but they often put one or two on top. When you watch the video he shows of the white Tesla in the parking garage it is 6 seconds from venting to deflagration (subsonic explosion or rapid burning) and that is ONE battery. Imagine this event on a school bus OR if the school bus is t-boned as he shows the video of the Tesla exploding after a collision.
https://www.youtube.com/watch?v=AIXTP-TgPEw
Interesting video on thermal runaway. I watch a second video on the subject. It could be an even bigger problem when back street garages repair or recondition battery packs.
Dr. Christensen says the LI industry is basically in the wild wild west stage..