Figure 5

The installed capacity (the solid line) and strategic target (the dash line) of direct use of hydrothermal systems in China. The capacity of ground-source heap pumps (GSHP) is excluded; data of current installed capacity is after Zheng et al. ([2005]; [2010]); data of strategic target is from the Working Group Report on Mid-to-Long Term Development Strategy of Energy in China ([2011]).