Despite the large estimated geothermal energy resources in
Spain (approximately 19,000 MW, of which 1000 MW could be
exploited), their exploitation would be expensive and require
further technological development. The Renewable Energies Plan
of 2011–2020 has set a goal of 50 MW by 2020 and estimated that
the first plants will be operational by 2017. There are boreholes
and small facilities located at several places across the country,
mostly on the Mediterranean coast and near Madrid [90]. Spain
installed 22.3 MW by 2007, using 347.2 TJ/yr with a capacity factor
of 0.49 [91,92].