The question is about why you think solar is good for home but not batteries.

What? I don’t think that. “Which is exactly the same as as solar and that was the whole reason for the question in the first place.” this is my entire point, that home battery systems are not matured to where they beat out local municipal facilities and the economies of scale that come with them, as is true with solar and every other form of power generation right now. Power grids are not built to support this kind of use, for a host of reasons.

When solar is used in the house it doesn’t go down the lines

Yeah, it does. That’s why they’re dangerous, because unless you have something like an interlock to physically separate it from the grid it will unexpectedly energize the lines even if that leg is isolated at the station. This kills so many electricians every year, and there is not a component that makes this idiot proof. The number of pried off interlocks on standby systems that I have seen is fucking terrifying, and automatic interlock switches simply aren’t reliable enough for broad consumer installation.

Hahahaha this is the icing on the cake […] That’s how that’s words spelt.

Um dude, nobody cares about minor grammar or spelling errors. I make tons of them myself. That’s not what that’s there to point out.