The Arcosol 50 (Valle 1) – Thermal Energy Storage System is a 49,900kW energy storage project located in Cadiz, San Jose del Valle, Spain.

The thermal energy storage project uses molten salt as its storage technology. The project was commissioned in 2011.


The Arcosol 50 (Valle 1) – Thermal Energy Storage System was developed by Torresol Energy Investments. The project is owned by Masdar Clean Tech Fund (40%) and SENER Grupo de Ingenieria (60%).

The key applications of the project are renewable capacity firming and renewable energy time shift.

Contractors involved

How well do you really know your competitors?

Access the most comprehensive Company Profiles on the market, powered by GlobalData. Save hours of research. Gain competitive edge.

Company Profile – free sample

Thank you!

Your download email will arrive shortly

Not ready to buy yet? Download a free sample

We are confident about the unique quality of our Company Profiles. However, we want you to make the most beneficial decision for your business, so we offer a free sample that you can download by submitting the below form

By GlobalData
Visit our Privacy Policy for more information about our services, how we may use, process and share your personal data, including information of your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.

Masdar Clean Tech Fund, SENER Grupo de Ingenieria and Torresol Energy Investments have delivered the project.

About Torresol Energy Investments

Torresol Energy Investments SA (Torresol Energy) a subsidiary of SENER Grupo de Ingenieria SA, is a solar energy service provider that offers promotion, investment, maintenance and operation of solar energy projects. The company’s services include development, operation and maintenance of solar plants, cutting-edge technological solutions, central tower, salt receiver and heliostat technology and cylindrical-parabolic collector technology services. It also provides plants operations and management services and solar power plants construction and maintenance services. The company operates in Seville, Vizcaya, Cadiz, Madrid and others. Torresol Energy is headquartered in Getxo, Spain.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.