Solar thermal power plant PS10
| Planta Solar 10 | |||
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| location | |||
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| Coordinates | 37 ° 26 '35 " N , 6 ° 15' 0" W | ||
| country |
 Spain
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| Data | |||
| Type | Solar thermal power plant (tower construction) | ||
| Primary energy | solar power | ||
| power | 11 MW el | ||
| Start of operations | 2007 | ||
The solar thermal power plant PS10 ( Spanish: Planta Solar 10 ) is Europe's first commercial solar tower power plant . It stands in the plain of Sanlúcar la Mayor near Seville in Andalusia . The plant went into operation in March 2007 after a four-year construction period. It has a maximum electrical output of 11 MW and consists of 624 trackable mirrors, so-called heliostats .
background
The European Commission funds research in different areas. In the sector of renewable energy is a project funded branch of CSP technology (dedicated C oncentrated S olar P ower). As part of the Fifth Framework Program , three projects were funded that are intended to test solar power plants in the megawatt range. One of the selected projects was PS10, which was funded with five million euros. The construction costs amounted to 35 million euros, of which five million euros were subsidies from the European Commission and the Andalusian regional government contributed 1.2 million euros.
Project partner and operator
The solar thermal power plant was planned and built by a consortium led by Solúcar Energía SA, a subsidiary of Abengoa SA. The consortium also consisted of Ciemat, DLR , Fichtner and Inabensa. PS10 is operated by Abengoa.
Location
Since Andalusia has the highest solar radiation in Europe, this location is particularly suitable for solar power plants. The PS10 is part of the planned Plataforma Solar de Sanlúcar la Mayor (PSSM) , a project to build solar power plants of different types with a total output of 300 MW in the same area.
technology
The PS10 is designed as a solar tower power plant. 624 heliostats mounted mirrors reflect the sunlight and concentrate it to a common absorber (receiver) , which is mounted on a 115 m high tower. With the heat concentrated there, steam is generated, which drives generators via turbines to generate electrical energy.
mirror
Each of the 624 mirrors has an area of 120 m² and consists of 28 individual elements. The surface is made of galvanized steel. At wind speeds over 36 km / h, the mirrors are aligned horizontally in order to offer the wind less contact surface and thus to prevent damage. The position of the sun is calculated centrally and the mirrors are tracked by a local control unit in two axes of the sun. The mirror field and the arrangement of the individual mirrors one below the other were optimized with the help of a computer in order to minimize shadowing effects and the loss caused by the cosine effect (reduction of the projected area when tilted) (4.5 and 19% loss p.a. ).
absorber
The absorber is mounted on a 115 m high tower. It consists of four 5.40 m wide and 12 m high individual elements that are arranged in a semicircle. This geometry improves absorption and reduces heat loss through convection and heat radiation , which means that the absorber achieves an efficiency of 92%. The projected area is 121 m². Under design conditions, 55 MW are produced thermally in the form of 100,000 kg / h of saturated water vapor at 257 ° C and 40 bar.
Turbine, generator and condenser
The turbine is driven by the 250 ° C steam with a pressure of 40 bar. The nominal electrical output of the connected generator is 11 MW. The expanded steam from the turbine is then condensed in a water-cooled condenser at 0.06 bar. In a multi-stage process that uses the residual heat of the steam from the turbine, the water is then heated before it is fed back into the absorber.
Energy storage
To avoid short-term irradiation fluctuations, e.g. B. to compensate for temporary cloud cover, an energy buffering system was set up. When the absorber is at full capacity, some of the steam is diverted and heat accumulators in four tanks. These have a thermal capacity of 20 MWh and allow the turbines to operate for 50 minutes at half power.
Expansion plans
PS10 is part of the Plataforma Solar de Sanlúcar la Mayor (PSSM) . In total, solar power plants with a total electrical output of 300 MW are to be built on this area. In the immediate vicinity, the PS20 solar thermal power plant with 20 MW, which works on the same principle, went into operation in 2009 . Another five thermoelectric power plants of 50 MW each and photovoltaic systems with 2 MW are planned.
See also
Web links
Individual evidence
- ↑ BBC: Power station harnesses Sun's rays. Retrieved June 1, 2011 .
- ^ Electronic Healing: First European Solar Power Tower. (No longer available online.) Archived from the original on July 13, 2013 ; Retrieved June 1, 2011 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ European Commission - Research & Innovation: EU support for CSP. Retrieved June 1, 2011 .
- ^ European Commission: European Research on Concentrated Solar Thermal Energy . 2004, ISBN 92-894-6353-8 , pp. 14 .
- ↑ a b c d e solarpaces.org: PS10. (No longer available online.) Archived from the original on February 10, 2012 ; Retrieved June 1, 2011 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ European Commission: Concentrating Solar Power - From Research To Implementation . 2007, ISBN 978-92-79-05355-9 , pp. 12 .
- ↑ a b c d e europa.eu: 10 MW Solar Thermal Power Plant for Southern Spain. (PDF; 1.2 MB) Retrieved June 1, 2011 .
- ↑ guardian.co.uk: Power tower reflects well on sunny Spain. Retrieved June 1, 2011 .
- ↑ abengoasolar.com: Heliostat Sanlúcar 120. (No longer available online.) Formerly in the original ; Retrieved June 1, 2011 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ abengoasolar.com: PS10: The first commercial tower of the world. (No longer available online.) Formerly in the original ; Retrieved June 1, 2011 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ abengoasolar.com: Power Tower Plants. (No longer available online.) Formerly in the original ; Retrieved June 1, 2011 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
