Hi - I have just signed up for this forum due to the shock of our electric bills with our new geothermal system. We just built a home here in CT and our electric bill has been over $600 for the past two months (just moved in three months ago so first month was partial). I almost cried...we were assured that geo was the way to go and we really tried to do everything correctly during the building process so we would have an energy efficient home. We have 3300 sf, 2100 of which is first floor. We have three zones and programmable Honeywell t-stats... all are set to 67 while home and 62 while away. We have closed foam insulation at the roof line and foundation (sill) with dense pack cellular in the walls. The house is very well insulated, but our average kwh usage is over 120 per day. Not sure what info anyone might need in order to help brainstorm my problem. We do have electric heat as back-up heat, but I'm not sure if it is on or not and don't even know how to check. Can anyone help?