As some one who instals geothermal, I would say yes. With a 30% tax CREDIT of the cost of installation helps bring the cost of your equipment down. I got to talk to a customer last week about his electric usage of his geothermal system. 2500sq ft home, heat and hotwater cost was less than $50. Yes he lives in a well built home but the outside temps last month has been in the teens,20s and 30s. We add a electric usage meter to the system to let the home owner know what the are paying for heat and air and hot water. All of our customers love their geothermals.