[ok_dad]

Don’t get the Tesla power wall, it’s more locked down than anything else in the market. Get a system you control with an API you can access, not proprietary crap.

Like locked down OSes and hardware, locked down distributed energy resources will be the next place where you’ll lose your access to your devices due to corporate greed. The data and API access for DERs are like GOLD today. If you don’t control them, someone else will, and poorly. No company I’ve seen today is competent enough to scale to what’s going to be needed in the future. They’re all focused on cloud stuff, but at the scale energy works at and the compute necessary to efficiently use future energy systems, we’re going to need to switch to a distributed system on the edge, at the generation and load sites.

Edit: I’m in HN slow mode for some reason, likely that the fascists aren’t my fan today and have been flagging all my comments, so here’s my reply:

Sorry, no, but I mostly deal with commercial products. I know of the power wall only because my friend got them and they kinda suck. Tesla sometimes fucks up control, too, draining the battery for their own use to make money on their VPP. I suggest asking directly to the sales people if you will have full, free access to your telemetry in bulk to download and that you have API access to the whole system. Those are the two most important factors.

[the_third_wave]

Better still to use a hybrid inverter plus battery with an open API which you do not allow access to the 'net, instead accessing the things through a proxy like OpenHAB or HA. Isolate all your IoT equipment on a network which is blocked from accessing the 'net and use proxy applications for control and data visualisation.

I'm using a Fronius Symo GEN24 in this way, I can access all features through the API, it can not suddenly update itself without my knowledge or consent. I do not have a battery attached yet since these are too expensive still and I can sell any excess power at market rates for the coming 5 years. After that time I expect battery prices to have gone down so I'll probably get a set of batteries which should enable us to be mostly energy independent from spring to autumn.

No third parties are involved in any way, no data is exchanged with "the cloud".

Edit: I'm also rate limited for some reason, a common occurrence [1]. No idea whether this is related to flagging, my UID being throttled by default or some other cause. It does not seem to be related to downvoted posts since I have been rate limited many times without any visible downvotes.

[1] documented in my profile at https://news.ycombinator.com/user?id=the_third_wave

[bqmjjx0kac]

Do you have any recommendations?

[Xt-6]

https://signaturesolar.com/shop-all/batteries/eg4-lifepower4...