Re: Fire Risk ?
I do note they say 100kw but no mention of runtime. Energy density is what's important here...if we're talking whole-facility backup for smaller installations (what a 3-phase 100kW unit can do) with runtime measured in tens of minutes, that's not just a firework -- that's a bomb with thermite mixed in and then some.
Keep that chunk of lithium well away from the servers, offices, car park, etc., and DON'T put it in a basement that could flood -- water and burning lithium together are about the only thing worse than a chunk of burning lithium!
And about that smartphone app. Please tell me the Internet connected bits are physically isolated from the controller bits, otherwise they've just created a ticking thermite bomb waiting for a hacker to find their way in. At this risk level I start to think legislation may be needed -- minimum security standards for equipment that could be installed in densely populated areas and pose a significant risk. Part of that standard should be the vendor accepts all liability, including damages, for any malfunction if they connect it to the Internet or recommend it be connected to the Internet.
Think about it: most of the civilized world requires insurance to drive because you might not be able to pay up in the event you cause damages. Maybe vendors of dangerous IoT stuff should be required to purchase insurance for their products just in case they go belly up at the first significant claim?