See the Energy Savings for yourself

Theory is one thing, but if you ever wondered if geothermal works in cold climates, how much energy you really save, or how much electricity a geothermal system consumes, look at the Live System below
This is a geothermal system for a 2,200 sqft split level detached house located in Calgary. The house has a 3-ton forced air geothermal system. (Note: only visible in browsers that support Flash).