I just got a battery installed. There is almost no fire risk. We're far more interested in the real risks like brush and electrical fires.
Most battery systems run at 48VDC or higher /w hundreds to many thousands of amps available on the battery bus. Poor crimps or corrosion can easily cause a fire. For grounded battery systems a single short in any battery in the array can cause flows of thousands of amps that will all go into plasma/heat and bypass circuit protection. DC arcs at those voltages and currents are nasty AF.
The Internet is of course full of ESS and related component failures starting fires:
https://diysolarforum.com/foru...
Even if the individual risk of ESS is not high putting all of this high current gear piecemeal in homes is pointless and dumb. It will cause unnecessary avoidable increases in fires and loss of property/life for no reason. Far cheaper and safer to centralize these systems where they can be professionally maintained and monitored - where automatic heat/fire detection and suppression technologies are in place.
The battery technology used for these itself doesn't ignite or explode, unlike a cell phone's chemistry. For fires it's primarily the electrical risk, as I mentioned in my OP. And I already accept that risk with the high voltage DC for my solar array. The battery system I have uses inverters and the conduit around my home carries 240V AC and not DC. Unlike my older solar installation.
Far cheaper and safer to centralize these systems where they can be professionally maintained and monitored
I had 20 days with partial or no power in 2022. And 13 in 2023. Without someone competent managing the centralized infrastructure there is little alternative.
Add on top that the changes in metering rules means I get pennies when I send my solar to the power company, but I pay dimes when I want to buy power back. From a cost perspective, storing energy for later is a no brainer.
where automatic heat/fire detection and suppression technologies are in place.
I suspect having an ICE car in a garage is a bigger risk. And somehow we all manage instead of riding a centralized service like a bus or a train. Maybe we're collectively as pointless and as dumb as you imply.