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Fusion for Energy (F4E) is the European Union’s Joint Undertaking for ITER and the Development of Fus
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Fusion for Energy (F4E) is the European Union’s Joint Undertaking for ITER and the Development of Fusion Energy. The organisation was created under the Euratom Treaty by a decision of the Council of the European Union in order to meet three objectives:

F4E is responsible for providing Europe’s contribution to ITER, the world’s largest scientific partnership that aims to demonstrate fusion as a v

iable and sustainable source of energy. ITER brings together seven parties that represent half of the world’s population – the EU, Russia, Japan, China, India, South Korea and the United States. F4E also supports fusion research and development initiatives through the Broader Approach Agreement, signed with Japan – a fusion energy partnership which will last for 10 years. Ultimately, F4E will contribute towards the construction of demonstration fusion reactors. F4E is established for a period of 35 years from 19 April 2007 and is located in Barcelona, Spain.

04/06/2026

ITER’s Inner Vertical Targets are taking shape!

Europe’s factories are rolling to manufacture the Divertor Inner Vertical Targets.

🛡️🔥These components, armoured with tungsten, will face the extreme heat from the ITER plasma.

Our supplier Research Instruments has started the assembly of the first units, mounting the plasma-facing parts onto the steel structures.

It’s a key step in series production, helping validate design choices and fabrication processes.

Proud to see the components come together — keep up the teamwork! 👏

03/06/2026

Europe delivers its first ITER in-vessel components ✅

Fusion For Energy (F4E) and Simicspa celebrated in Camerana the completion of four Divertor Cassette bodies.

It’s a huge manufacturing feat, which rewards a strong industrial partnership and shows the skill of our fusion supply chain.

The components will sit at the bottom of the tokamak, where they will endure the extreme heat flux of particles escaping the plasma.

🤝Made in Italy, for Europe.

This success belongs to the talented teams of F4E, SIMIC and ITER Organization – thank you!

Read the story: https://fusionforenergy.europa.eu/news/iter-divertor-cassettes-ready-simic/

02/06/2026

The MITICA Beam Source is off to Padova! 🚛✨

The system built by ALSYMEX for Fusion For Energy left the Tarbes workshop (France) and is heading to the Neutral Beam Test Facility (Italy).

Inside the crate is the result of a decade of teamwork in Europe to manufacture, assemble and test a cutting-edge technology, now ready to demonstrate its heating power for .

We can’t wait to see it in action!

👏 Thank you to all the partners involved ITER Consorzio RFX Padova

📸 The first truck carries the Beam Source and the second carries its remote handling tools.

28/05/2026

Perfect landing! A new European Vacuum Vessel sector is in place. 🎯

ITER Organization transferred sector module 4 from the Assembly Hall into the Tokamak Pit.

36 hours of synchronised teamwork to move a 1,100-tonne load with flawless precision.

Each module integrates one Vacuum Vessel sector, two Toroidal Field Coils, plus thermal shields.

🖐️This makes it 5 out of 9 now installed – well done!

📸 by ITER

22/05/2026

EC-23 lights up in Barcelona: a wave of expertise and ideas to power fusion!⚡

Fusion For Energy hosted the 23rd Joint Workshop on Electron Cyclotron Emission and Resonance Heating (EC-23) this week.

We gathered 150 international experts, the highest turnout ever for this biennial scientific event created in 1979.

The workshop offered a deep dive into EC physics, experiments and technologies, with updates from labs, universities, start-ups, and public agencies from across the world.

F4E experts took the stage to present the progress in technologies like gyrotrons, launchers or diagnostics, which are a unique benchmark in the field.

Plus, two fascinating visits to Barcelona Supercomputing Center - Centro Nacional de Supercomputación and Museu Nacional d'Art de Catalunya (MNAC).

21/05/2026

Waveguides made in Europe: the pipeline from prototype to industrial capability ⏩

will rely on European waveguides to channel powerful heating microwaves inside the reactor. These are no conventional pipes, as they must endure harsh thermal and mechanical loads and minimise losses thanks to a corrugated inner surface.

Fusion For Energy (F4E) is working with European industry to develop the processes and know-how to master this technology. And we’re getting there.

Research Instruments Gmbh and Tiefbohrbär GmbH, in collaboration with our contractors IDOM and ALSYMEX, delivered a 1.7-meter-long prototype, a key step towards series manufacturing.

Next, the unit will travel to EPFL for high-power radio frequency tests.

✅We’re proud to see our investment turning into advanced production lines ready to be set in motion!

20/05/2026

A new spin for the Vacuum Vessel assembly 🔄

Just one week after arriving at ITER, Europe’s Vacuum Vessel sector 3 was flipped to speed up its sub-assembly.

Using a special outdoor gantry crane, ITER Organization and Mammoet carried out the precise rotation of the 400-tonne component.

👏 A heavy operation, smoothly executed. Well done!

15/05/2026

A unique technology manufactured and a partnership worth celebrating 🤝 ✨

Fusion for Energy (F4E) and ALSYMEX completed the beam source of MITICA, the prototype for ITER’s Neutral Beam Injectors at Consorzio RFX Padova.

The system is designed to generate high-energy ions to deliver 16.5 MW, an unprecedented plasma heating power.

The F4E and ALSYMEX teams came together in the Tarbes workshop to honour this new success and the long-standing collaboration behind it.

Over 15 years and 29 contracts, we have delivered key technologies for ITER and mastered know-how that will help Europe shape its own future through fusion energy.

Brilliant teamwork!

Read how we made the beam source: https://fusionforenergy.europa.eu/news/mitica-beam-source-completion-alsymex/

13/05/2026

Winter is coming to ITER's Magnet Cold Test Facility❄️

The first Toroidal Field coil from Japan is ready to be cooled down to 4K (-269 ºC), cocooned inside a massive cryostat.

These temperatures, only found in deep space, will allow engineers to verify the coil's performance under ITER operating conditions.

👏An impressive facility and teamwork! Well done to our ITER partners and the European teams contributing.

09/05/2026

Fusion energy is part of Europe’s independence and resilience. 🇪🇺

on 9 May reminds us that energy is essential to our prosperity, security, peace and wellbeing.

And we can no longer rely on others.

By investing in fusion technologies, we are laying the foundations for abundant and clean energy for the future generations.

and other fusion projects are examples of how can lead the way.

We are committed to delivering a clean energy mix for a strong and sovereign Europe!

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https://www.fusionforenergy.europa.eu/

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