It has been almost a year with my NEW Geo. I track my electric usage for every months and comparing to my previous home I am doing OK (little better than OK but not great). The system is Heat Controller HTV 036B1C01JLK, 3-ton 3 heat/2 cool. House is 2000 sq ft Ranch with full finished basement so the total Heating/cooling space is about 4000 sq ft. We have 3 vertical wells at 200 - 225 ft each (totaling about 1200 ft of vertical pipes) + about 100 ft of horizontal pipes at about 8ft below ground that connected the pump to the header. House temperature is set at 70 degrees heat and 75 degree cool. House is 100% electric. We have 1 hot water heater tank so I disconnected the DSH on 7/15/14 (closed the valves) because it seemed to use more energy than it can produce. The first 3 months the system used a lots of electric so my average bill for those 3 months is about $190/month. Many Experts on this site had suggest the problem and I passed that on to the installer. The pump we have is an oversize pump for 3-ton system so he turned one pump off (from a twin pump system) and it seems to work much better. After 12 months the average monthly electric bill (for heating/cooling/hot water/appliances...+everything else) is about $150. I think this is OK (could be better) for a 4000 sq ft home with 5 people. What do you think? I attached the Excel file I use to keep track of monthly usage. Thanks.