I haven’t yet put it into numbers and anyway compared to the expenses to get there will be depressing but measuring temperatures to take decisions on how to manage heat allowed us to reduce the house temp from 29 Celsius to 21 over a week of tweaking. This week we’re getting the cooling system installed and I believe that with this knowledge the running cost will be much lower. In a part of the house I already automated the curtains which led also to a decrease of temps - I could cut air condition altogether there. So definitely a confort gain at least. Now money-wise it’s anyway a cost case with the automation relying on new solar panels, heat pump, new electrical cabling… so if you exclude our perception of additional confort it’s definitely not seeing a positive ROI before I’m dead of old age. But no regrets anyway.