The progress of the Italian DTT project for nuclear fusion is consolidated which aims to produce clean and inexhaustible energy by copying the stars and the Sun. Enea has announced that the tenders won have exceeded 85 million euros for the realization of the Italian nuclear fusion project, the Divertor Tokamak Test (Dtt), the large scientific infrastructure promoted by Enea, Eni and Consorzio Create. Furthermore, in recent months, the shareholding structure of Dtt Scarl, the company that will have to build this unique experimental facility in the world, has expanded with the entry of six new members – Infn, Rfx Consortium, Turin Polytechnic, University of Tuscia, Milan Bicocca and Rome Tor Vergata – which will shortly be joined by Cnr. Enea reports that the total investment is over 600 million euros, of which 250 million thanks to a EIB loan, the European Investment Bank, which has included it among the Strategic Projects, taking into account the effects estimated by a factor of 4, over 2 billion euros and the creation of about 1,500 new jobs. “The entry of seven new partners with high scientific-technological skills is an important added value for this challenging and complex project”, underlined the president of Enea, Federico Testa.

Testa also stressed that “the increasingly strategic role of this project is highlighted in the context of post-pandemic relaunch initiatives: Dtt – un super lab which will rise in Frascati – it is the most important research infrastructure at national level foreseen in the last decades, a unique opportunity to consolidate the scientific, technological and industrial leadership achieved by Italy in a sector that has led to very important successes, also at an economic level. “Iled has been assessed that it has a capacity to generate 1,500 new jobs and 2 billions of euros in economic repercussions. The new six participants joined the company Dtt Scarl through the subscription of approximately 4% of the share capital sold by Enea and divided as follows: Infn 1%, Rfx Consortium 0.5%, Turin Polytechnic 0.5%, University of Tuscia 0.5%, University of Rome Tor Vergata 0.5%, University of Milan Bicocca 0.5%, while the Cnr will join with 0.5%. Enea’s stake is 70%, Eni’s is 25% and the Create Consortium is 1%. The latest contract awarded for a value of 33 million euros, following an international tender, it concerns the supply of 18 gigantic superconducting magnets by the Italian Asg Superconductors (Malacalza), which has also acquired similar contracts for the international project on the Iter fusion.

The other tenders announced to date, which concern the supply of superconducting hi-tech materials, have been won from the Korean Kiswire Advanced Technology for over 32 million euros, from the US Luvata Waterbury for a total of 16 million and from the Japanese Furukawa Electric Co for 4 million. Enea anticipates that this year new tenders will be launched for the main components and site adaptation works within the Enea Research Center in Frascati where one of the most advanced scientific-technological centers at international level will be created, open to researchers and scientists from all over the world.

The DTT facility was created as a ‘link’ between the large international nuclear fusion projects Iter and Demo – the reactor that after 2050 will have to produce electrical energy from nuclear fusion – and from its construction, highly significant responses from a scientific, technical and technological point of view are expected to some of the unresolved issues on the path of fusion energy production, such as for example the management of the large power flows produced by plasma. From a visual point of view, Dtt will be a 10 meter high structure with a radius of 5, inside which 33 cubic meters of plasma will be confined at a temperature of 100 million degrees with a current intensity of 6 million amperes – equal to the current of six million lamps – and a thermal load on materials of up to 20 million watts per square meter equal to more than twice the power of a rocket at take off. The more than 40 kilometers of superconducting cables of niobium, tin, titanium – only a few tens of centimeters away – will be at 269 ° C below zero.

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