A large part of the existing built environment is currently heated with natural gas. Shell believes in geothermal heat as a sustainable alternative. Heat that is extracted at depths of 500-4000 metres is what we call geothermal heat. The deeper the source, the warmer the water. Hot water is pumped up and used to heat buildings and homes but is also used for greenhouse horticulture and industry. Because of our subsurface expertise and the experience in working on large and complex projects, Shell is well positioned to work on sustainable solutions in the area of heat supply.