Endesa’s nuclear activities
Endesa has an interest in Nuclear Power Plant Operations in Spain through its shareholdings in following units: Ascó I (100%), Ascó II (85%), Vandellós (72%), Almaraz 1 & 2 (36,021%), Garoña (50%), and Trillo (1%, through Nuclenor). The first five are PWR designed by Westinghouse, Garoña is BWR designed by General Electric and Trillo is PWR designed by KWU. Overall installed nuclear capacity of Endesa is 3.686 MWe, representing 47,1% of the total installed nuclear power in Spain.
These plants are operated by Joint Venture Subsidiaries: Asociación Nuclear Ascó Vandellós II (ANAV – www.anav.es), Centrales Nucleares Almaraz Trillo (CNAT – www.cnat.es) and Nuclenor (www.nuclenor.org), which are also the license holders of the respective power plants.
|UNIT||ELECTRIC POWER IN MWe||Endesa OWNERSHIP||OPERATOR|
|Ascó I||1032.5||100%||Asociación Nuclear Ascó-Vandellós II, A.I.E. (ANAV)|
|Ascó II||1027.2||85%||Asociación Nuclear Ascó-Vandellós II, A.I.E. (ANAV)|
|Vandellós II||1087.1||72%||Asociación Nuclear Ascó-Vandellós II, A.I.E. (ANAV)|
|Santa María de Garoña||466||50%||Nuclenor S.A.|
|Almaraz I||1049.4||36%||Centrales Nucleares Almaraz-Trillo, A.I.E. (CNAT)|
|Almaraz II||1044.5||36%||Centrales Nucleares Almaraz-Trillo, A.I.E. (CNAT)|
|Trillo||1066||1%||Centrales Nucleares Almaraz-Trillo, A.I.E. (CNAT)|
Endesa´s governance on these assets is exercised through its role as Shareholder in the respective operating companies: ANAV, Trillo-Almaraz and Nuclenor, and is verified through independent Nuclear Oversight monitoring.
Therefore as a Shareholder, Endesa looks to these organizations to have adopted and implemented appropriate policies and procedures which are consistent with Endesa Nuclear Policy.
Santa Maria de Garoña nuclear power plant has suspended the operation since December 16th, 2012 to avoid a full year of retroactive tax charges for which it would have been liable if it was operating on 1st of January, on the basis of the law 15/2012, dated on December 27th, 2012, which introduced new taxation applicable to energy generation, spent fuel production and radwaste production starting from January 1st , 2013.
The regulatory implementation of the aforementioned law, eliminating retroactive effects of the taxation and the charges to the final core to be unloaded, as well as a modification introduced on the Regulation on Nuclear and Radioactive Installations (RINR), has allowed Nuclenor to request the renewal of its operating license for Santa María de Garoña NPP on May 2014, aiming to extend operation until year 2031, which would represent completing an operating life of 60 years. The Spanish Regulatory Body (CSN) recently finalized the evaluation of the documentation submitted by Nuclenor, and the 8th of February of 2017, issued the corresponding report with the conditions that the plant has to satisfy to be re-started. The report also includes the identification of those improvements in safety that the plant has to implement before fuel reload. This report is preceptive for the Ministerio de Energía, Turismo y Agenda Digital to authorize the operation of the plant, still pending.
Participation in Nuclear Industry Organizations
Endesa encourages membership in nuclear industry international organizations, aiming working together with worldwide utilities and institutions to achieve mutual support, exchange of information and emulation of best practices.
Endesa subsidiary nuclear organizations are members of or participates in several international organizations devoted to strive for Excellence in the operation of nuclear power plants:
- INPO, Institute of Nuclear Power Operations
- WANO, World Association of Nuclear Operators
- NEI, Nuclear Energy Institute (through UNESA)
- EPRI, Electric Power Research Institute (through UNESA)
- Proprietary Groups of Westinghouse and GE
Endesa’s Nuclear Policy
The Board of Directors approved Endesa's nuclear policy on 1 February 2011 which had already been fully incorporated into the documents and practices of the affiliated nuclear power plants and is summarised as follows:
“With regard to the management of nuclear assets carried out by Endesa's subsidiary companies, Endesa publicly undertakes to ensure that its nuclear facilities adopt a clear nuclear safety policy and are operated with nuclear safety as the overriding priority together with the protection of workers, the public and the environment.
These policies concerning nuclear safety shall encourage excellence in all activities carried out in the nuclear power plants and shall strive to go beyond compliance with applicable laws and regulations, ensuring that principles of continuous improvement and risk management are implemented at all times. Endesa, as a shareholder, shall implement any available measures to ensure that the operators in the nuclear power plants in which Endesa has a stake, as small as it may be, have publicly adopted suitable policies that guarantee the highest standards of safety for nuclear activities, radioactive waste management and the physical security of plants and workers, the public and the environment.
Endesa shall provide suitable resources to guarantee the application of these safety policies. Likewise, Endesa undertakes to maintain cooperation policies in terms of nuclear safety with the global nuclear industry.”
Principles for Implementing Endesa’s Nuclear Policy
At Endesa, we have set out the following principles aimed at ensuring effective compliance with the Nuclear Policy:
- Recognise safety as an absolute priority, applying a comprehensive and coherent procedure to all aspects of nuclear management. The aim is to guarantee the safe operation of plants, protect the facilities and protect workers and the public in general and to preserve the environment.
- Promote a culture of safety at all levels within the organisation and throughout all the stages of life of the nuclear power plants which includes identifying and assessing threats and minimising risks, fostering an approach based on critical thinking where careful decisions take precedence and encouraging information sharing and the reporting of problems.
- Promote excellence in operations, encouraging the exchange of experiences with the global nuclear industry, emulating best practices, using operating experience in a systematic and timely manner. In order to achieve this, we use human error prevention tools and set goals that go beyond compliance with the regulatory framework. This is all aimed at operating the nuclear power plants in an error-free manner and preventing unscheduled downtime.
- Maintain the facilities in optimal conditions, ensuring that they comply with the design at all times, that they are correctly maintained, that reliability methods are established for the systems and equipment and an ageing and obsolescence management plan is in place for these.
- Ensure that the facilities, material means and human resources are available to respond to crises and emergencies as a result of internal and external incidents, including extreme situations. The aim is to prevent and minimise activities that could cause harm to workers, the public and the environment, while setting the example.
- Ensure that radiation risks for workers is kept as low as reasonably possible (ALARA). This is achieved by establishing a wide range of preventive measures with regard to the prescribed limits and empowering all workers with regard to the safe application of radiation protection principles.
- Ensure that the generation of liquid and gaseous radioactive effluents is planned and controlled correctly, minimising the radiological impact on the environment and extensively complying with regulatory limits.
- Ensure that the volume of radioactive waste generated during the plant’s normal operating life, including waste from the dismantling phase, is kept to a minimum insofar as reasonably possible; likewise, set out the provisions necessary to comply with regulatory and contractual obligations regarding the management of spent fuel and dismantling the plant. We also supervise subsequent phases and comply with the principles of safety and radiation protection.
- Develop a human resources policy that guarantees the preservation of critical knowledge required to manage plants safely and efficiently and apply a systematic approach to training.
- Maintain a Comprehensive Management System that integrates the different phases of the continuous improvement cycle in keeping with the strategy, the policies and the goals of the Organisation: medium and long-term planning, identifying requirements, assigning priorities and resources; executing them via key operating processes, management processes and support processes; assessments, via a model that includes self-assessment and internal and external independent assessments; and finally, planning corrective actions to resolve deviations from the Organisation's standards and objectives. The identification and assessment of threats and risk minimisation is carried out systematically via deterministic and probabilistic methods during all plant operating phases. This forms part of the Comprehensive Management System which ensures that problems are avoided through anticipation, prevention, monitoring and rectification.
- Ensure that Endesa’s nuclear policy and implementing principles are applied consistently to contractors and suppliers, establishing correct supervision mechanisms accordingly.
- Maintain a strict, transparent and timely internal communication policy which consolidates trust and staff compliance with the organisation’s expectations and objectives; also maintain an efficient communication policy with the general public, establishing stable communication channels with stakeholders and ensuring the integrity and transparency of information at all times.
- Guarantee the material and human resources required to effectively apply the preceding principles.
- In the nuclear power plants in which we hold a majority interest, Endesa Generación Nuclear S.A. maintains a structure for the independent supervision of plant safety which includes a top-level committee made up of international experts and a permanent supervision team on site.
The management of the nuclear assets in which we hold an interest is focussed on integrating the management of nuclear and radioactive safety, occupational risk prevention, the environment, physical protection, quality and economic aspects to ensure the protection of people and the environment.
For more information:
Pursuant to the FTSE4Good Criteria for Nuclear Power, the following indicators are included:
- Automatic unscheduled downtime
- Exposure to radiation
- Waste generation:
- Medium and low activity waste
- Spent fuel
- Dismantling and associated risks (NOTE: At present, none of the nuclear power plants in which we hold an interest has been dismantled; therefore, there is no information to report in this regard)
Complete information about our nuclear indicators is provided in the following document: