I posted here yesterday but it vanished
Great Fire of London 1666 humanity learned (and today forgot) what happens with high density (fire) fuel.
This thing called the "firewall" became a fire-code requirement.
Tesla has high temp heat tiles for SpaceX, I can buy fire brick/cinder block at Home Depot - yet I see nothing like that used in these battery farms

Previous Vistra fire here was apparently due to the fire suppression system leaking water onto electronics which then lit up.
Water with... lithium batteries? - Vistra is too cheap and typical of green investment dollars focus is on flogging the engineers to get something together ASAP for profits to roll in. Safety cost money and let's not waste time with that. I don't see a basic effort put into fire engineering at all.
It doesn't matter what started the fire. That it spread and was not suppressed, and the fire dept. could only let it burn- are more important failures I think.
This pic seems to be the facility. Reusing some old building?
I've never seen so much air conditioning before, wonder what the global warming and energy costs of cooling these battery packs is.