Cookie Policy

What is a cookie?

A “cookie” is a file that contains small amounts of information that is downloaded on your computer -or other device- by accessing certain web pages and that gathers information regarding your browsing on the websites. Once downloaded into your device, your browser sends these cookies in subsequent visits to the websites already visited, providing them with information (such as, for example, the browser used, the language selected, the number of times you have visited the page, etc.), in order to facilitate, personalise and make the navigation more effective according to the information provided by cookies.

What type of cookie do we use?

Our website uses cookies to personalise the content and provide you with a customised, efficient browsing. We use cookies to help us to identify your browser and the language that you use, as well as other characteristics of your browsing patterns, with the aim of directing you to the suitable home page and facilitating you the navigation on our website. We use identifiers, such as IP addresses to obtain the number of individual visitors that access to our website, their geographical location, and their usage trends across the different pages that make up the site. In no case shall we use cookies to personally identify the user.

By browsing our website you accept the implementation of cookies, which you can control and administrate using the properties of your browser. Note that removing or blocking cookies may affect your browsing on our website, and it is possible that some functions may not be available and may even disable browsing.

The website uses cookies with different functionalities:

Our website cookies installed on the users’ devices are not everlasting, rather, depending on their functionality, they have a limited permanence: from those cookies that delete themselves at the end of a browsing session, to other cookies that expire after 24 hours, up to the longest lasting cookies which expire 365 days after they were last updated.

The following table displays the first-party and third-party cookies that the website current uses and the purpose for which each one is used:

1f616252c666968921000a2b5ef44e1c At the end of the browsing session    
c48b3f668f69f01659341181a9bb31e8 365 DAYS Users’ preferred language. Impacts on the functionality of the Web
cookieaccept 365 DAYS If users have accepted the cookies Disablement of the browsing on the website
_ga 1 day This type of cookie is associated with Google Universal Analytics- which is an update of the commonly used Google analysis service. This cookie is used to distinguish unique users by assigning them a number as a client identifier. It is included in each website request and is used to calculate visits, sessions and company data for the analytical reports of the website. By defect, they expire after 2 years, but this can be modified by the website owner. Impacts of the functionality of Google Analytics
_gat   This type of cookie is associated with Google Universal Analytics. Pursuant with their documentation, they are used to speed up the ratio of requests, limiting the gathering of data on websites with lots of traffic. They expire in 10 minutes. Impacts on the functionality of Google Analytics
_gid 1 day This type of cookie is associated with Google Universal Analytics. It saves and updates a unique value for each web page visited. Impacts on the functionality of Google Analytics
_streamio_session At the end of the browsing session    
JSESSIONID At the end of the browsing session Platform session cookie with a general purpose. Used on sites written in JSP. It is normally used to maintain the users’ session anonymous for the server. Impacts on the management of users.

This website uses “Google Analytics” analysis cookies, an analytical web service provided by Google, Inc. with registered address in the United States with central headquarters at 1600 Amphitheatre Parkway, Mountain View, California 94043. For the provision of these services, cookies are used which gather the information, including the users’ IP address, which will be transmitted, processed and stored by Google in the terms established on the website, including the possible transmission of said information to third parties for legal reasons or when said third parties process the information on behalf of Google. The configuration of these cookies is predetermined by the service offered by Google, as such we recommend that you check the Google Analytics privacy page to obtain more information regarding the cookies they use and how to disable them, understanding that we are not responsible for the content or veracity of third-party websites.


Users can allow, block or remove cookies stored on their device through the browser setting options on their computer. Please read carefully the corresponding help section on your browser to learn more about how to activate the “private mode” or unblock certain cookies:

Enresa wishes to point out that the variation of cookies that this website handles cannot be related to its management and maintenance. Consequently, reviews are carried out periodically to improve and update Cookies Policy.

Enresa does not assume any liability which may arise from legal or technical problems caused due to non-compliance with the recommendations included in this policy. This communication is made for inform the users and, therefore, it should not be used for any other purpose. Likewise, responsibility for the content and veracity of the privacy policies of third parties included in this Cookies Policy is not assumed.

If you have any question regarding the Cookies Policy outlined in this document, you can contact us at


Enresa can modify this Cookies Policy pursuant to the legislative or regulatory requirements, or in order to adapt that policy according to the instructions given by the Spanish Data Protection Agency. For that reason, users are advised to check this policy regulary.

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Enresa undertakes responsible management in all the actions it carries out as an essential public service, promoting good governance, ethical conduct, transparency and quality as strategic factors inherent to the company.

Compliance and criminal prevention

Enresa promotes a strong prevention model by means of the Compliance and Prevention of Criminal Risks System as a management instrument that helps prevent criminal offences and the violation of human rights.

The implementation, functioning, maintenance and continuous improvement of this system is the responsibility of the Criminal Compliance and Prevention Committee (CCPC).

Enresa also has an internal information channel, as established in Organic Law 2/2023, of 20 February, with the aim, hand, of preventing and detecting any conduct that may be considered unlawful and, on the other, of guaranteeing the protection of the informant.

Ethical conduct

Enresa maintains a constant commitment to ethical and responsible conduct. In fact, these are corporate values that must be present in each and every activity and initiative undertaken.

Accordingly, Enresa’s Ethics Code (Spanish version) is a mandatory reference document, an ethical guide that must govern the conduct of all Enresa staff. The Ethics Manager and Ethics Committee are responsible for the management, monitoring and implementation of actions related to compliance with this code.

Due diligence

In order to notify any breach of the Ethics Code, one can directly contact the Ethics Manager via the electronic mail address

The Sustainability Master Plan 2023–2026 provides for the development of this line of work with the aim of identifying adverse impacts for human rights and the environment.

Internal control

Accordingly, Enresa is already working on the development of a Human Rights Policy, as contained in this Master Plan.

To ensure regulatory compliance, internal processes and continuous improvement, all processes at Enresa are revised to incorporate best practices and optimise processes at the company.

To achieve this, the Board of Directors of Enresa annually approves a plan that schedules and develops internal audits that guarantee the correct performance of its activity.

Risk management

With a view to guaranteeing its performance, Enresa has introduced a Risk Management System that involves the participation of the company’s different preventive management systems, management committees and managers, both at a corporate level and specific to each facility and project, seeking the optimum management of business risks, including those related to environmental, social and good governance aspects.

Communication and transparency

The Risk Management Committee (RMC) is the body in charge of risk management incorporated in the risk map, approved by the Board of Directors, which contains the identification, analysis and evaluation of the risks, along with the controls and actions to mitigate or eliminate criticalities.

One of the principles that governs Enresa’s activity is transparency, which is applied to both its internal processes and to its relations with society.

Enresa, in addition to managing radioactive waste and decommissioning nuclear power plants, must involve society in its technical solutions, including communicating the social, environmental and economic contributions of the company.

Technological R&D

Should you require more information, access these sections:

Innovation has accompanied Enresa since its creation – a philosophy that has enabled the company to continually improve and optimise its processes and make significant progress in technological development, positioning Spain as a global benchmark in radioactive waste management.

Enresa focuses its efforts on those areas where industrial solutions are not fully implemented and in other areas where improvement and optimisation solutions exist, by means of the development of its R&D plans.

Collaboration on platforms and forums in the field of R&D

For more information, visit the R&D page.

With the aim of working on the transfer of knowledge, Enresa fosters and promotes synergies with a number of research bodies and centres, taking part in common lines of interest to offer support in aspects of communication and training.

In addition, it takes part in initiatives, projects and forums related to boosting knowledge on decommissioning and radioactive waste management.

Cooperation with third countries

To find out more, visit the International cooperation page.

In the field of international cooperation, Enresa collaborates with third countries by providing technical support in line with its social commitment and the exchange of knowledge.

To find out more, visit the International cooperation page.

Information security

Information is an asset with great value for Enresa.

Digital transformation

Accordingly, work is ongoing on the information security system and on its adaptation to the National Security Framework, by means of the Information Systems and Technologies Plan and the work by the Enresa Information Security Committee.

In line with its corporate policies and strategy for the future, Enresa has taken on the challenge of the continuous improvement of efficiency in all its processes and operations.

Quality management and assurance system

To achieve the objective, Enresa has rolled out its 10th Information Systems and Technologies Plan – a roadmap for continuous improvements in the digitalisation of Enresa, which also enables the mobility of many of its employees, thus reinforcing the company’s commitment to flexibility and the work/life balance.

Enresa has taken on the commitment to maintain and improve quality standards in line with the requirements of UNE standards UNE 73401 and UNE 9001, along with other external standards, placing quality as a strategic factor that is integrally applied in the management of each and every activity of the company, providing an effective and safe service for society and the environment.

To this end, Enresa has established the necessary commitments in its Quality Policy, whereby the Quality Committee is the body responsible for the necessary revisions to guarantee the effective maintenance of the quality system deployed throughout the company.

To find out more, visit the Quality page.

Guidance for stakeholders

Enresa maintains close and constant contact with its stakeholders both directly and by means of the different channels enabled to that end, such as the transparency portal and the different contact electronic mail and

As part of its commitment to its stakeholders, Enresa performs analyses of the most important aspects of its performance in relation to economic dimensions, governance, social and environmental issues, with a view to knowledge-based improvements in the expectations of its stakeholders from the point of view of sustainability.