[parl_match]

Last year, when I did the math, batteries still had a 15 year payoff time. I'm not going to be in this house in 15 years. If the state subsidized it more (it is kind of a public good imo), or I could easily roll it into house value, I'd do it.

I'm trying to move to a nicer house. When I do that, I'll almost certainly just go for it.

[h0l0cube]

I'm not sure whether you read my comment, but I was specifically talking about sodium ion which are absurdly cheap even before efficiencies of scale enter the equation. I don't think many are doing the math on that because it's only just become available on Alibaba. BMSes and chargers don't really exist for it yet, but there are whole battery packs for sale.

[parl_match]

No, I read your comment. I was just thinking about 2030.

Also, no offense, but I'm not trusting a brand new energy storage technology bolted to the wall of my house. I'll businesses trial it out first for a few years.