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OK, to back up just a little: I'm looking for a system that will only be used in case of emergency when the grid is down and when I'm totally disconnected from the grid; and my two highest priorities are: (a) to minimize the up-front cost and (b) to not fry any expensive equipment. So, based...

Thanks for the suggestions. Unfortunately, when I search online for "grid-forming inverters," most of the articles seem to be related to giant utility company grids rather than "do-it-yourself-in-your-basement"nano-grid projects. I wish I could get a hold of actual circuit diagrams of equipment...

I've seen some comments on the Internet that these Hoymiles micro-inverters have some kind of "zero export control" feature. Can that be utilized to throttle back their output so that it just matches the load at any given moment?

I'm looking for information on an inexpensive (but safe!!) DIY hack that would let me run some essential equipment (e.g., the well-pump and the circulating pump for the gas-fired furnace) during emergencies when the grid is down. My existing solar setup was commercially installed, and it uses...