alt Hacker NewsThanks, and I agree that a DIY-inverter designer should be able to meet grid-interconnection requirements (e.g. IEEE 1547-2018). With that said, I think case-by-base evaluation from the AHJ would be prudent without a UL listing... something that AHJs don't want to do.
I'd prefer to just put the DIY inverter behind a transfer switch (with an adequate battery bank and maybe a small propane generator)... with the grid as emergency fallback.
That's exactly the setup that I had in Canada with a windmill thrown in for good measure (which really helped in the winter, after we got the windmill up we never ran the generator again).