I am glad I have come across this site to read about everyone's experiences and sharing of knowledge. Although I have been reading tons of posts the past few days I always feel like my situation is more complex that what I read about. So I am in Maryland and I have BGE for utilities and they offer a $100 dollar energy audit which I am in the works of getting done so I have a better understanding of my energy inefficiencies. That is at least a first start. I feel like my house is rather complicated for a variety of reasons. Back in July I purchased a historic house of 6000 square ft originally built in 1760. Approximately 3000 sq feet of that is an addition that was built in 2001. The original part of the house has original 6x6 windows, 12 ft ceilings, original doors. Original construction is about 14 inch thick brick walls with plaster interior. There is also a finished basement of about 1000 sq ft. The house has 2.5 stories(finished attic) and a basement - 6 bedrooms, 8.5 bathrooms, and is not open concept at all.6 people live in the house. I added a photo and circled the original part of the house. We also have about 6.5 acres which are under a conservation easement so assuming the historical society would approve this upgrade we likely would have to drill wells rather than tear up the grounds. The house has a 300 gal oil tank for a 70+ year old furnace with 13 zones for radiant heating through radiators in the original part of the house and baseboard in the newer addition and basement in addition to only radiant floor heating in the master bedroom, bathroom, laundry room, and closet. In addition there are 3 propane fueled fireplaces, 1 in the kitchen, 1 in master bedroom, 1 in the tv room and 2 wood burning fireplaces that we do not use. We also use propane for the burner in the kitchen with a 100 gal propane tank. We have 3 electric water heaters (about 15 years old) that range from 50-80 gallons. Central air conditioning throughout the house in addition to 1 vent free direct ac unit in the tv room. Our main appliances are 2 energy star refrigerators, 2 24"washer machines, 2 24" electric vent free dryers, 2 bosch dishwashers, dacor stove. Since our electric bill is roughly 275-350$ a month and this winter so farwe are spending about 600-700 a month on oil, plus about 250$ every few months on propane I thought it might be time to look into geothermal before the tax credit starts to dissipate over the next few years. I am pretty worried what the quotes for geothermal are going to cost since I feel like as soon as people see our house the price gets jacked up. I'd love to add the ground mount solar panels too but that might just have to wait to see another day Anyway here's to joining the geoexchange and more reading and getting quotes!