There are various issues there. As regards potential, I think that we haven't achieved its full potential and that there's ample room to develop geothermal systems in Quebec, Canada and elsewhere.
Take Sweden, for example, which decided to invest in geothermal several decades ago. The country doesn't have a lot of choice in renewable energies and decided to invest in geothermal heat pumps. Now the residential market in Sweden is saturated, and virtually all houses that can be heated by geothermal energy are. It's mainly the commercial market that offers growth opportunities, particularly new construction.
Here geothermal heat pumps represent 1% or 2% of the heating market. So there's still major growth potential for that type of heating, which would help us replace the petroleum products, fuel oil and natural gas, that are still used to heat buildings.
The north is a special case. What's important in the north is to provide local resources. Northern communities need that independence if the want to achieve a certain degree of development. Geothermal energy is one option for providing those local resources. The example I often cite is the construction of high-voltage lines. The cost per kilometer of high-voltage line is approximately $1 million, and the cost to drill is similar per kilometer of depth.