Recent content by ESESKeith

Well, I'm intrigued in any case. With the limitation of not being able to solar charge and generator charge at the same time, which might be addressed by getting your PI controller to access weather API's (for predicted solar output), NEST or equivalent API's or at least your historical usage...

Just to note: from your prior note, your "generator" appears to be homemade, an alternator attached to a gas engine. I would not expect this to be even close to good enough in terms of power quality. I expect a fairly high-end generator with sophisticated power quality controls to be required...

um, not at all sure about that. Li Ion batteries require sophisticated charge control. I'm not quite sure what you're suggesting: i.e., if it's a "48V" battery bank, why don't they add an input so you can drop 52V DC (or whatever) across it and charge that puppy up? Is that what you're suggesting?

Steve1081, I think the problem is this: if we assume the generator power is perfect, so no dirty power issues, then if the generator is swapped in for the grid, the PW won't know and will operate as usual: which means it will only charge off the solar (no sun, no charge). it's conceivable that...

Also, just to toss in two cents (and again, apologies if I've missed a post, or a dozen): in the "how to do it" category -- if one can get the signal from powerwall that it's below X% charged, then disconnecting the Solar inverter outputs/PW inputs and reconnecting them to the generator does the...

I am looking into this same issue, and although I've done a fairly deep scan of this thread, I haven't digested it all. Still, it appears that no one has actually got this up and running yet, right? Thanks!