World’s largest utility-scale solar power station based on Linear-Fresnel technology in operation

Puerto Errado 2 Aerial View (April 2012)

Puerto Errado 2 (PE2), the 30MW solar thermal power station built by Novatec Solar using its proprietary solar field technology, has been completed and is in operation since August 2012. PE2’s solar boiler includes a mirror surface of 302,000m2 making it the world’s largest operational solar thermal power station based on linear Fresnel collector technology.

PE2’s 30MW electrical output is generated exclusively by solar power and will produce approximately 50 million kW hours of electricity per year. Annually, this equates to a reduction of carbon dioxide emissions of over 16,000 metric tonnes and enough clean energy to power 12,000 Spanish households.

Novatec Solar was the EPC contractor for the project and was responsible for the construction and commissioning of PE2. The Spanish UTE Errado PE2, a TSK and OHL joint venture, built the balance of plant.

Swiss utilities as partner
The solar thermal power station is owned by the Swiss utilities Elektra Baselland (51%), Industrielle Werke Basel (12%), Elektrizitätswerke der Stadt Zürich (10%), Elektrizitätswerke des Kantons Zürich (6%), Energie Wasser Bern (6%) and Novatec Solar (15%). A consortium of three European banks – Bayerische Landesbank, Commerzbank and Rabobank – arranged PE2’s limited recourse project finance debt funding in May 2011 which included export credit insurance provided by Euler Hermes. The plant is registered under the “Special Regime” established by the Spanish Royal Decree RD 661/2007 and will operate under the Spanish feed-in tariff system.

Desert-compliant technology saves water
The solar field of the solar power station PE 2 consists of flat mirror boxes. The mirrors, which are fitted approximately one meter above ground, reflect the sunlight on a receiver located seven metres above the solar field. Sunlight heats up the water in the receiver and turns it to steam, which powers two 15MW turbine generator units. Air-cooled condensers are used to cool the water which is then recirculated for steam pressure build-up in the solar field again. Mirror cleaning is performed by automated cleaning robots that use very little water. The very low water consumption is a huge advantage in the dry steppes of southern Spain. The mirror boxes have been manufactured locally in the town of Fortuna, close to the project site.

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