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

June 10, 2026
Australia leads the world in residential rooftop solar, but its commercial and industrial sector has deployed only 5.6GW.
June 9, 2026
Ark Energy has been granted approval by AEMO and Transgrid to connect its 435MW Richmond Valley solar-plus-storage project to the NEM.
June 9, 2026
Revolve Renewable Power is acquiring a 125MW portfolio of utility-scale solar development projects in the US.
June 9, 2026
Zelestra has signed a long-term power purchase agreement (PPA) with Meta for the 180MWdc Palmera Solar Plant in Freestone County, Texas.
June 9, 2026
A US Federal judge has revoked a law preventing solar PV and wind projects from qualifying for tax credits by committing 5% of the project’s value.
June 9, 2026
As solar deployments are set for a record year in the US, module supply, quality, and reliability will be key topics of conversation at PV ModuleTech USA 2026.

Upcoming Events

Solar Media Events
June 16, 2026
Napa, USA
Media Partners, Solar Media Events
June 30, 2026
Sacramento, California
Media Partners, Solar Media Events
August 25, 2026
São Paulo, Brazil
Media Partners, Solar Media Events
September 1, 2026
Mexico City, Mexico
Media Partners, Solar Media Events
September 9, 2026