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> What kind of idiot is going to shell out six grand just to drain his truck battery for the same purpose? This one, I already have. I paid more than that for
by revnode 4y ago
> What kind of idiot is going to shell out six grand just to drain his truck battery for the same purpose?
This one, I already have. I paid more than that for two Tesla powerwalls. I use them for load shifting. I charge at night when electricity is cheap and use them during the day. They already paid for themselves in savings. Oh yeah, no more power outages either.
- cfeduke 4y agoSame, though I also was due to replace my roof from 1991 and got a solar roof. It's great having a $0 electric bill every month and we've had four outages since my system went live and my house hasn't gone out at all. It'll be a few years before it pays for itself considering the price of the roof as part of the entire system - we live in a forest and power outages are very frequent so the cost for convenience is worth it.
- driverdan 4y agoA dedicated house battery is not the same as using a vehicle battery.
- causi 4y agoThey already paid for themselves in savings. How? Where do you live that electricity is that expensive during the day and arbitrage rate is that high to create a thousand dollars a year in savings? I run my AC 24 hours a day at fifteen or more degrees below outdoor ambient on a decent sized house, with appliances that are better than twenty years old, and my total yearly electricity cost is under two grand. This math doesn't work.
- revnode 4y ago> Where do you live that electricity is that expensive during the day and arbitrage rate is that high to create a thousand dollars a year in savings? I live in the US, where the federal government subsidized half the system cost (at least when I installed it) via tax credits. I save about a 100 bucks a month on electric, since I can charge my car at night at a discount, which requires a special meter enabled by the system.