While heat pump potential is high, installations currently represent just 1% of the heating and cooling market. Other direct use technology growth is more moderate and in some cases negative, which results in heat pumps occupying a rapidly expanding proportion of direct use deployments throughout the world. Today, at least 78 countries utilize geothermal direct use applications, with geothermal heat pumps representing roughly 50% of the direct use market. Led by the United States, China, and Sweden, direct use capacity reached 51GWt in 2010, representing 438,073 TJ/year in thermal energy used. Through 2017, Pike Research projects that 90% of added direct use capacity will come from heat pump installations, led primarily by select EU markets, China, and the United States.
www.pikeresearch.com/research/geothermal-heat-pumps-and-direct-use
