the solar thermal power industry is growing fast with 1.2 gw under construction as of april 2009 and another 13.9 gw announced globally through 2014. spain is the epicenter of solar thermal power development with 22 projects for 1,037 mw under construction, all of which are projected to come online by the end of 2010. in the united states, 5,600 mw of solar thermal power projects have been announced. 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.