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The 50MWe AndaSol plant is located in the community of Aldeire in the
Marquesado valley in the Province of Granada, Southern Spain. Thanks to the
high altitude (1,100 m) and the desert climate, the Marquesado Valley offers
exceptionally high annual direct insolation of 2,200 kWh/m²yr. The 549’360m²
parabolic trough solar field is built-up by 1,008 EUROTrough collectors,
arranged in 168 parallel loops. It will occupy app. 200 hectares of land. It
will generate live steam of 100 bar/371°C to the reheat steam turbine with a
cycle efficiency of 38%, gross. With an annual direct normal radiation of
2,200 kWh/m² per year, the AndaSol plant will generate almost 182 million
kWh per year of clean solar electricity in 100% solar operation. The plant
will be built, owned and operated by the specific project company, Partner
1. Partner 1 will sell as renewable independent power producer the generated
solar electricity to the utility under the standard renewable power purchase
terms regulated by the Spanish Royal Decree 2818/98. Using solar beam
radiation as it’s primary energy, the solar plant will avoid approximately
172,000 tons of CO2 annually in Southern Spain otherwise being emitted by
coal and heavy fuel oil operated power plants in the region.
The project is supported by the European
Commission, DG TREN because of these reasons:
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It is a
first-of-its-kind, utility-scale demonstration of the solar thermal
technology developments EUROTrough and Thermal Storage.
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Subsequent
to the development of an advanced collector structure within the
EUROTrough project, this demonstration plant will be the first
opportunity to proof and demonstrate the technical and economic
viability of the new collector design.
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Before the
newly developed EUROTrough technologies can be utilized on a pure
commercial base it is necessary to overcome the technical and economic
risks of a large-scale installation.
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The AndaSol
project will be the first application of molten salt-based thermal
storage technology with parabolic trough collectors. The heat exchange
between the HTF fluid circulating in the solar field, the molten salt
storage medium and the water/steam cycle will be optimized in this
commercial scale design.
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The
procurement, installation and long time operation of new components
within a working power plant scheme will enable the involved companies
and research institutes to further improve components and production
technologies. This will subsequently lower cost for following projects.
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