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Solar Towers from left: PS10, PS20.

Europe's first commercial concentrating Planta Solar 10 or PS10 solar power tower operates near the Southern Spanish city of Seville. The 11 megawatt (MW) solar power tower produces electricity with 624 large movable mirrors called heliostats.[1]



The mirrors were delivered by Abengoa, the solar receiver was designed and built by Tecnical-Tecnicas Reunidas, a Spanish Engineering Company; and the Solar Tower was designed and built by ALTAC [2], another Spanish Engineering and Construction Company.


Each of the mirrors has a surface measuring 120 square meters (1,292 square feet) that concentrates the sun's rays to the top of a 115 meter (377 ft) high, 40-story tower where a solar receiver and a steam turbine are located. The turbine drives a generator, producing electricity.[1] This power is three times more expensive than power from conventional sources, but prices are likely to fall, as they have with wind power and as the technologies develop. [3]

Future plans

Solar Tower PS10.

PS10 is the first of a set of solar power generation plants to be constructed in the same area that will total more than 300 MW by 2013. Power generation will be accomplished using a variety of technologies. The first two power plants to be brought into operation at Sanlúcar la Mayor are the PS10, and Sevilla PV, the largest low concentration system photovoltaic plant in Europe.[1]

Energy storage

The PS10 solar power tower stores heat in tanks as pressurized steam at 50 bar and 285°C. The steam condenses and flashes back to steam, when pressure is lowered. Storage is for one hour. It is suggested that longer storage is possible, but that has not been proven yet in an existing power plant.

See also


External links

Coordinates: 37°26′35″N 6°15′00″W / 37.443°N 6.250°W / 37.443; -6.250


Simple English

File:PS10 solar power tower
The 11 megawatt PS10 solar power tower produces electricity from the sun using 624 large movable mirrors called heliostats.

Planta Solar 10 (PS10 ) is a solar power plant located in Sanlucar la Mayor, Spain.

The plant is made up of a tower located in the center of a large field covered in many mirrors. Each of the 624 moveable mirrors has an area of 120 m2 (1290 ft2). The mirrors reflect the light from the Sun to the top of the tower. The heat warms water within pipes in the central tower turning it into steam. The steam drives turbines which, at peak, put out 11 MW of electricity [1].

The planet is really good for providing electricity during the hottest parts of the day when air conditioning demand is the highest.

Other pages


  1. First EU Commercial Concentrating Solar Power Tower Opens in Spain


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