I started building for unexpected weather when I bought this place. It had two tanks, rather a large lake and a tank. Now it has two more tanks. I built the Dome as a way to prep for hot or cold and with a $120.00 electric bill last month it's working. That is for two meters the house another dome and a large shop with welders and machinest tools etc., and of course the water well for daily use for us and the cattle if needed. And no we do not raise the inside temp just yet. Set at 74 and happy on those hot days. Someday I may go off grid, if I live long enough and it becomes cost effective or if there is no other way. Having lived with diesels and batteries as well as some wind power in the past I'll live with what I got for now. Building your place for weather also means placing the house on the best coordinates for sun gain in the winter and sun shielding in the summer. This also means clearing all trees around the house for 100+ feet, this for fire and general security. You see I figured on wild fires and almost put in an internal tank for fire suppression, money and all just stopped that part. Exterior of concrete means low maintenance and long life. Double pane windows with argon filled helps a lot too. And right now we do not even have curtains down stairs. I have no desire to live in a dark hole in the ground.