13 December 2005

The advance of geothermal heat pumps – world-wide


Geothermal (ground-source) heat pumps (GHP) are one of the fastest growing applications of renewable energy en the world, now in 31 countries, with annual increases of 10% over the past ten years. GHPs are based on a ubiquitous and largely unexploited energy resource: the heat conent of the ground right beneath our feet. The world-wide increase of geothermal direct use is mainly due to the advance of GHPs.