Cubillos del Sil (León)

Type of power station


Surface area

330 hectares

Plant capacity

1.052 MW

The plant

Key data

The Compostilla Thermal Power Unit (TPU) has three active thermal generation groups, which have a total power of 1052 MW. The unit includes all of the necessary water supply infrastructures required for both open and closed-circuit cooling towers, and it also houses one of the main nodes on the Transport Network at 400 and 220 kV. The area covers more than 330 hectares, 80 of which are used for industrial purposes.

Compostilla power station

Energy transition

Nowadays, we find ourselves amid a profound transformation within the energy sector. Amid a movement towards a decarbonised economy to tackle the urgent need to reduce greenhouse gas emissions to curb the effects of climate change.

In order to achieve the decarbonisation objective agreed by the countries that signed the Paris Agreement, the electricity sector needs to be completely transformed to become entirely emission-free. Energy efficiency, renewable energy and abandoning fossil fuels are key in achieving these objectives.

Up until a few years ago, large power stations provided energy for the entire country. Nowadays, renewable energy power plants form part of a new model for generating cleaner, emission-free energy that can be distributed further.

This change in the energy model also implies a profound social transformation that we must face head-on, as it impacts people, communities and territories whose economies revolve around traditional energy sources. In order for this transformation to be a success, we must ensure that it is a fair energy transition and that nobody gets left behind. That is why Endesa, as a socially responsible company, has launched a plan for the future, which—in addition to wider efforts—minimises the economic impacts of terminating such activities for the area as much as possible.

The territory

The Compostilla Thermal Production Unit is located in the municipal districts of Cubillos del Sil and Ponferrada in the El Bierzo region, in the northwest of the province of León. This district is home to 125,000 inhabitants, has a long history of agricultural and industrial traditions and forms part of the Camino de Santiago pilgrimage route.

Compostilla is connected to the Western Europe Motorway of the Sea through Ferrol, Gijón and A Coruña, and is one hour away from the high-speed railway that connects Madrid with León and Oviedo. What's more, the A-6 motorway is just 6 km away.

For more information, download the following documents:


Through an international call for project proposals, we are aiming to draw economic activity and employment to the area by making the site and existing assets at the power station available.

This process consists of two stages:

Request for expressions of interest. All interested parties should submit the Expression of Interest document using the template available in the Documentation section and put forward a project execution and launch proposal. This may relate to the whole site or simply part of the site.

In order to prepare the project summary, those interested can consult all of the information available on this website.

The Expression of Interest document can be submitted up until 31/01/2020 at 14:00 via email to planfuturo@endesa.es. The document must be signed, along with its attachments.

Stage two: Those shortlisted after the first stage will receive a letter of invitation to continue onto the second stage, in which they will have to complete the proposed project with an economic-financial business plan, a timeline and a sustainability assessment that covers the various social, occupational and environmental impacts.

The shortlisting process will be an ongoing process once the Expression of Interest document has been submitted. The second stage of the process encompasses 'due diligence', a site inspection and the offer regarding the transaction proposed by the interested party in accordance with the project.

Lastly, individual negotiations on the transactions proposed by each interested party will begin.

By sending the Expression of Interest document to the specified email address, full acceptance of all terms and conditions stipulated in the process for requesting expressions of interest document included in the Documentation section will be assumed.


This section contains the Expression of Interest forms (Attachments 1, 2, 3 and 4) and other additional materials that may be of use.


For more information about the process or if you have any further questions, please email us at planfuturo@endesa.es.