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This is very similar to our setup, (we're in East Texas) so here's some thoughts to consider. Your mileage may vary. 1. Go with a dual fuel hvac. Heat pumps/inverters are amazingly efficient but suck when it gets below 35°. Also, if it's cloudy for a few days they will drain your batteries...

But how do you adjust or change the inverter parameters? Monitoring them locally is great (which I do), but i want to adjust sell-back and SoC limits based in stuff like weather forecasts.

I just monitor my sol-ark inverters locally over MODBus, via RS485 to an eGauge. Under emergency conditions like a storm when i really need to be grid independent i don't have Internet anyway.

I have trouble with my inverters resetting/rebooting when local-area lightning causes surges back down the AC grid side. I think it's time to install a surge capacitor on that side of the site.

So... I have a pair of 12k sol-ark inverters (master/slave) and I use an eGauge to collect data and monitor my whole system. They are a lot pricier than a Raspberry Pi for sure, but it gives us a lot of other features. For data collection, I just made a MODBus rs-485 cable and used the...

This is pretty much our exact installation and usage pattern - this all sounds familiar. Our difference is we installed two 12k's and run them in a master/slave configuration, with half the solar running to each. In this manner I can push 18k (9kW x 2) to the grid, except we've limited it to...