Solar thermal power stations include the 354 megawatt (MW) Solar Energy Generating Systems power plant in the USA, Solnova Solar Power Station (<answer>Spain</answer>, 150 MW), Andasol solar power station (<answer>Spain</answer>, 100 MW), Nevada Solar One (USA, 64 MW), PS20 solar power tower (<answer>Spain</answer>, 20 MW), and the PS10 solar power tower (<answer>Spain</answer>, 11 MW). The 370 MW Ivanpah Solar Power Facility, located in California's Mojave Desert, is the world's largest solar-thermal power plant project currently under construction. Many other plants are under construction or planned, mainly in <answer>Spain</answer> and the USA. In developing countries, three World Bank projects for integrated solar thermal/combined-cycle gas-turbine power plants in Egypt, Mexico, and Morocco have been approved.
Where is the PS20 solar power tower located?
Spain