Texas is number two in the country for PV capacity, and number one for wind power generation (by a long shot).
If you look at the numbers, you’ll notice that it doesn’t really correlate with political affiliation, but instead where it’s economically viable. The prices of the PV panels are slowly coming down, so we should see it become more prevalent as time goes on.
Did you look into 12v mini split systems? Avoiding the need for an inverter might drastically bring down costs and efficiency. I’ve seen a couple sets out on the market that come with everything already (prefilled mini split system and solar panels). Adding a transfer switch and an inverter could get you somewhere! I liked the idea of it purely as an “assist” with a larger system. Pull some heat out of the house to reduce the load on the main hvac system.