Ensa participated in the International Nuclear Power Plants Summit in Istambul

Maliaño, March 11st 2019.- Equipos Nucleares S.A., S.M.E has been with the Cluster of the Nuclear Industry of Cantabria , in the 6th edition of the Congress and Exhibition of nuclear power plants – International Nuclear Power Plant Summit celebrated in Instambul.

The event, considerate as a reference date in the nuclear sector in Turkey, joined all supplier of the nuclear supply chain with the main buyers, decision makers and potential partners. There the state company located in Maliaño had the chance to show their products and services, show its capacities in the nuclear industry, update the latest industry developments and networking opportunities to explore new ways of collaboration.

The Advanced Technology Center of Ensa cooperate with Navantia improving the developments in the design and production of a component for a new submarine

Maliaño, March 5st, 2019. – The Advanced Technology Center of Equipos Nucleares S.A., S.M.E  , with other technologies centers as CTC, Eurocontrol and CADE, made an advisory and consulting work  to Navantia shipyard in the design and manufacturing review of one of the integrating components of the new S-80 submarines.

Through different analysis and calculations, in addition to ensuring compliance with the ASME standard, it was verified that these components of the submarine were safe for installation.

Ensa develops two news processes of protection against the corrosion of the sealing gaskets of its ENUN cask

Maliaño, March 1st 2019.- Equipos Nucleares S.A., S.M.E has developed two news alternatives for the recharge processes in the seat area of the sealing gaskets thanks to a subsidy of the line INNOVA 2017 of de Department of Innovation, Industry, Tourism of the Cantabrian government.

The main purpose of the project consists in the improvement of the productivity and competitiveness of metal casks of the ENUN family of new manufacturing in the protection of the board area against to corrosion. For that, Ensa has developed two alternatives and complementary lines thanks to the introduction of new technologies.

Therefore, Ensa has developed the robot application of weld CMT, which allow the performance of recharge the sealing gasket with a high metallurgic quality and an important rise in productivity. This is possible thanks to the improvement of the welding device, as well as the system robotization that allows covering any type of complex geometry.

Ensa received students of the intermediate level of Mechanid of Salesianos school

Maliaño, February the 26fst of 2019.- Equipos Nucleares S.A., S.M.E  received the visit of the second-year students of the intermediate level of Machined of Salesianos school at Santander.

The group was welcomed with a presentation of the company where the main products designed and manufactured and the services offered to the nuclear industry were shown.

The visit continued in the Advanced Technology Centre where they observed, among others, tensile tests and impact tests with Charpy pendulum.

The meeting finished in the factory where they could see the main components and products in differents stages of manufacturing. Also the group observed the operation of specific machines such as grinding machines, boring machines, broaching machine and the vertical lathe and it was explained to them the work carried out in the clean area.

Ensa has done a new vibration test in the Ascó nuclear power plant

Maliaño, February the 21fst of 2019.- The Automatic department of the Advanced Technology Centre of Equipos Nucleares S.A., S.M.E has made a new test of vibrations in Ascó nuclear power plant in Tarragona to verify the correct state of the reactor coolant pumps.

As a part of the framework contract that the state company with head office/headquarters in Maliaño has signed with Westinghouse for the nuclear power plants of the National Association Ascó- Vandellós group it has been made the vibration measurements of the reactor coolant pumps during the beginning of plant cycle.

With these measures it was verified the correct state of the pumps after the servicing realized during the refuelling outage and also the needed calculations were made in anticipation of a scenery where balancing is necessary. The works were developed during the pressure and temperature rise of the plant until reaching nominal values.

Ensa participated in the Nordic Nuclear Forum 2019

Maliaño, February 19th 2019.- Equipos Nucleares S.A., S.M.E participated in the Nordic Nuclear Forum 2019 in Hensilki, Finlandia. Leandro Sánchez from the Field Services, Decommissioning and Radioactive Waste Area and Manuel Fajardo from the Marketing and Sales department, went to event on the part of the company.

During the meeting, several presentations were given by different companies and government representatives of European countries linked with the nuclear sector.

The state company located in Maliaño, had the opportunity to show their products and capacities in this scenery focusing on the exchange of information about actual topics of life cicle of nuclear energy.

Ensa keeps its CEFRI certification to intervene in French nuclear power plants

Maliaño, February 11st 2019.- Equipos Nucleares S.A., S.M.E successfully passes the annual follow-up audit of the CEFRI certification .

The CEFRI certification recognizes the ability of a company to implement and maintain a management system that guarantees the protection of workers who perform activities under ionizing radiation; an essential requirement to be able to intervene in French nuclear power plants. Ensa has this certification since 2012.

Ensa calculates its carbon footprint, verified by AENOR

Maliaño, January 30th, 2019. – Equipos Nucleares S.A., S.M.E is calculating its carbon footprint that is being verified by AENOR .

The carbon footprint measures greenhouse gas emissions that are emitted into the atmosphere as a result of our activity in society. The Cantabrian company maintains a commitment to fight against global warming that is reflected in this initiative, with which it aims to reduce the impact of its activities in this area through the implementation of measures that contribute to reducing the carbon footprint each year.

Its products and services help to generate carbon-free energy, a fundamental aspect at a time when climate change has the greatest environmental impact at a global level, and where EU policies focus efforts on reducing GEI emissions and in the transition towards a low carbon energy model.

Ensa’s environmental policy is aligned with European and national policies, maintaining a principle of efficient use of energy, which translates into an objective of reducing energy consumption and the associated carbon footprint.

Consequently with the transparency policy, the footprint is being verified by AENOR and the registration in the Carbon Footprint, Compensation and Carbon Dioxide Absorption Projects Registry of the Ministry of Energy Transition is considered created by Real Decreto 163/2014.

Ensa successfully loads the first two ENUN 32P casks in Trillo NNPP

Maliaño, January the 24th of 2019. – Equipos Nucleares S.A., S.M.E successfully completed the loading of the second ENUN 32P cask at Trillo Nuclear Power Plant in Guadalajara. The cask was transferred to its storage position in the Individual Spent Fuel Storage Installation (ISFSI of the plant, where 2 ENUN 32P casks and 32 DPT casks, also designed, manufactured and loaded by Ensa, are stored.

With the loading of these casks, carried out in collaboration with Enwesa S.A., S.M.E, a subsidiary of Ensa, the first load campaign of the ENUN 32P casks was successfully completed and the process of starting up was completed. This process was previously initiated by the modification of auxiliary equipment and the performance of cold trials.

ENUN 32P casks, designed and manufactured by Ensa, allow the transport and storage of spent fuel. These first campaigns of loads carried out in Almaraz NNPP and Trillo NNPP suppose putting in service this cask model of the ENUN series.

ENSA moved its headquarters from Madrid to Cantabria

The decision has been made by the Government delegate of Cantabria with the SEPI president and the head of the company

Maliaño, 22nd of January of 2019.- Equipos Nucleares S.A., S.M.E , belonging to the SEPI group, has decided to move its headquarters, which up to now was in Madrid, to the Cantabrian city of Maliaño. In this way, the company brings together its centers of activity, management and production, in the Cantabrian region. Its manufacturing center is in the same municipality, in the South of the Santander Bay. The initiative has started by the Government delegate in Cantabria, Pablo Zuloaga, after a recent meeting with the president of SEPI, Vicente Fernández, and the new president of Ensa, José David Gomila.


With this move, Ensa suited its headquarters to the reality of the company, since the main activity, manufacturing plants, and almost all of the staff are concentrated in Maliaño. From these facilities, all commercial activities are undertaken and they received visits from customers, being also the point of residence of the management team of the company.


In addition to match its registered with the main center of interests of the company, the transfer of its headquarters is impact, from the fiscal point of view, that the Impuesto de Transmisiones Patrimoniales y el de Actos Jurídicos Documentados will enter in Cantabria. Other economic implications is that the transfer of 50% of the VAT collected by the State to the region.

The company was formed on July 10, 1973 in order to satisfy the needs of the Spanish civil nuclear program in the manufacturing of nuclear components. The construction of the plant of Maliaño took place between 1975 and 1976, when started the manufacture of the first components for the Spanish market.

In the past 45 years, the Cantabrian company has earned international recognition as multisystem nuclear components supplier, the quality of their products and the high technology of their production processes and their services.

At present, Ensa has among its clients all power plants and industrial plants of chemical and steel industry of the country. All components for the spent fuel of Spanish plants have been manufactured by it. In addition, the equipment manufactured by this company operating in more than 90 nuclear power plants in Europe, America, Asia and Africa, in countries such as Germany, Sweden, Finland, France, Italy, United Kingdom, United States, South Africa, Argentina, India, Slovenia, Switzerland, Belgium, China and South Korea.

Ensa has reached high levels of training what makes it the first metallurgical company of our country in accreditations for the laboratories of its Advanced Technology Center that certify the quality of their products. This also allows the company participate in large international projects, such as the of the Thermonuclear Experimental Reactor International , in France, where Ensa has a key role.

In addition to its leadership in the sector in which develops its activity, the company has become worthy of the distinctive «Equality in business», a mark of excellence that keeps from 2010 and its granted by the Government, recognizing companies that stand out in the development of policies of equality between women and men in the workplace through the implementation of measures or plans.


Equipos Nucleares is a public company owned by 78,75% by the Sociedad Estatal de Participaciones Industriales and a 21.25% by the Dirección General de Patrimonio del Estado, whose activity is the manufacture and supply of nuclear components.

Its subsidiary ENWESA, also based in Cantabria and owned by Ensa 82,55% and by Westinghouse 17.45%, is a services company specialized in maintenance and assembly of mechanical, electrical, and I &C; communications systems and nuclear services in power plants, petrochemical and naval sector among others.

SEPI group

Ensa belongs to the SEPI group, a holding company that comprises a total of 15 public companies participated in a direct and majority, with more than 74,000 professionals. It also has a supervised public foundation and direct minority stakes in nine companies and hints at more than one hundred companies.