That wouldn’t be an off grid building then.
Comment on The U.S. Just Ran a Solar Storm Emergency Drill. The Real Deal Would Be a Catastrophe
bobs_monkey@lemm.ee 1 day agoIt’s worth noting that even though a building might have solar, the systems usually disable themselves in the event of a blackout to prevent back feeding into the grid.
roofuskit@lemmy.world 1 day ago
shortwavesurfer@lemmy.zip 1 day ago
That’s known as a grid tie system and my edit mentions that. The only way it’s going to help is if the grid is physically disconnected from the building as in the wire is not connected to the building at any point.
curbstickle@lemmy.dbzer0.com 23 hours ago
Unless I’m missing something here, thats what an LVD should do, and anyone grid-connected with solar should have.
shortwavesurfer@lemmy.zip 23 hours ago
During a normal power outage, you’re right. That does keep you isolated on your own island. But in a case like this, the voltage is likely to spike to incredibly high levels on wires that aren’t meant to carry it and cause arcing and possibly fires. That’s why you want to be physically disconnected.
anomnom@sh.itjust.works 11 hours ago
The breakers at transformers in each neighborhood would surely trip before frying a house I would think.
They go whenever a tree comes down near our street anyway.
curbstickle@lemmy.dbzer0.com 22 hours ago
Got it, at that point (extremely high voltage) you’d need suppression at the panel. Which I would hope people have inline, but not ex0ect like an LVD.