I just installed motorized dampers in my crawl space using Shelly smart relays! Now I have an automatic schedule so I’m not cooling rooms that aren’t in use (like the bedrooms during the day and the lower level of the house at night). Already seen significant power savings!
That is very impressive! Although to be honest I question the accuracy of all those estimated power draws. I would be interested to see an endurance test of your battery- assuming your battery capacity is accurate, your runtime on a full charge should line up with your power draw.