Solar Millennium starts work on Spain’s Andasol 3 solar thermal plant

Facebook
Twitter
LinkedIn
Reddit
Email

Starting work on what is being called one of the largest solar thermal power plants in the world, Solar Millennium, via its subsidiary, Flagsol, has begun development on the 50MW Andasol 3 plant in southern Spain for completion in 2011. Situated on the Plateau of Guadix in the province of Granada, Andasol 3 is the third of the Andasol projects in the southern Spain region using parabolic trough technology.

Andasol 1 is grid connected, having been officially inaugurated last week, while Andasol 2 is in the test phase. Each of the three plants will feature a collector surface area of over 1.5 million m2 and will each reach an output of approximately 170GWh per annum.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Close to 210,000 parabolic mirrors will be installed for Andasol 3. Currently, the construction of the plant is at an advanced stage, with the collector mountings foundations being cast and the collector assembly and preparation due to begin shortly.
 
Commissioners Stadtwerke München and RWE Innogy have turned to Solar Millennium’s expertise in the area to develop the plant in collaboration with MAN Ferrostaal and RheinEnergie. Stadtwerke München holds a 48.9% share in the project company Marquesado Solar S.L., while RWE Innogy and RheinEnergie jointly hold 25.1% of the shares. The remaining 26% is owned by an investment holding company of MAN Ferrostaal and Solar Millennium.

“Parabolic trough technology sets new benchmarks for solar electricity generation”, commented Prof. Fritz Vahrenholt, Chairman of the Executive Board of RWE Innogy. “It can be deployed on a large scale and generates electricity in a reliable and power grid-friendly way even after sunset thanks to a huge molten salt thermal storage system. This allows the plant to generate electricity for almost twice the amount of hours as a solar power plant without the storage system.”

Read Next

August 4, 2026
The Eindhoven University of Technology announced 'Stella Juva', a prototype of the world's first solar-powered ambulance.
August 4, 2026
More widespread deployment of rooftop solar PV projects in Bangladesh could save consumers up to US$0.061/kWh, according to IEEFA.
August 4, 2026
Indian solar module manufacturer Kosol Energie has launched a new n-type glass-glass hail-resistant module.
August 4, 2026
Solar developer RWE has signed a power purchase agreement (PPA) with tech giant Google to power data centre operations in Oklahoma, US.
August 4, 2026
Tandem PV has acquired fellow nexTC, which develops thin-film metal oxide coating processes for use in tandem solar modules.
August 4, 2026
T1 Energy has signed a module supply deal with Clearway Energy. The modules will use domestically-produced cells from T1’s Austin facility.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
April 20, 2027
Istanbul, Türkiye