In March 2007, Europe's first commercial concentrating solar power tower plant was opened near the sunny southern Spanish city of Seville. The 11 megawatt plant, known as the PS10 solar power tower, produces electricity with 624 large heliostats. Each of these mirrors has a surface measuring 120 square meters (1,290 square feet) that concentrates the Sun's rays to the top of a 115-meter (377 foot) high tower where a solar receiver and a steam turbine are located. The turbine drives a generator, producing electricity. PS10 is the first of a set of solar electric power generation plants to be constructed in the same area that will total more than 300MW by 2013. This power generation will be accomplished using a variety of technologies.