Comment by em3rgent0rdr
Comment by em3rgent0rdr 2 days ago
Yeah. Commercial home solar battery power as I understand is done with safer chemistries, such as lithium iron phosphate, which while they have a lower energy density (which is not a big downside for a stationary building) don't have the thermal runaway issues that labtop lithium ion batteries have. I wouldn't want to live next door to the DIY labtop battery array enthusiast.
He seems to be doing it fairly safely by having it housed in a building a whole 50m away from the main dwelling. A fire from there could spread to the house or elsewhere but it's no longer a metal fire so it's a lot easier to deal with and just contain the fire in/around the shed. I'd probably add a nice gravel buffer around it to help that and live in a reasonably well hydrated part of the country so there's not as big a fire risk from embers.