Survey of Energy Resources 2007
Geothermal Country Notes
Research has shown that a low-enthalpy geothermal resource is widely distributed across the Spanish mainland. The main areas are in the northeast (Barcelona, Gerona and Tarragona), southeast (Granada, Almeria and Murcia), northwest (Orense, Pontevadra and Lugo) and the centre (Madrid). Other minor areas also exist. In the Canary Islands, it has been found that a high-temperature resource exists on Tenerife (but is not commercially viable) and that Lanzarote and La Palma have an HDR resource.
In 2005 it was reported that the small amount of capacity installed for direct purposes (22.3 MWt) was divided amongst individual space heating (4.8 MWt), greenhouse heating (14.9 MWt) and swimming and bathing (2.6 MWt).