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A Word from the Director

ITER is a unique fusion science and technology research facility. It represents a key milestone for the future of energy: safe, economically sound, environmentally friendly. Fusion offers a massive and continuous power supply. It poses no concerns related to long-lived radioactive waste. And it is sustainable, with abundant natural fuel resources. It is a legacy we will be proud to leave to our children.

The ITER Project is on the move. The pace of work is increasing as construction on the platform has reached the 85 percent milestone and ITER contractors have begun assembling the ITER Tokamak and plant. Manufactured components, certain more than 10 years in the making, are arriving on site, and the first vacuum vessel sector is about to be lifted into the Tokamak pit.

We have also transformed the ITER Organization to drive an integrated "project culture" extending across the ITER central team and the Domestic Agencies. Together, we have created a comprehensive, integrated schedule accounting for more than 150,000 separate activities and the one million components that will go into creating the ITER machine.

The project reached a significant milestone in July 2020: the official launch of assembly activities. Today, 77 percent of the total construction work scope through First Plasma has been achieved.

"Total construction work scope," as used in our project performance metrics, is a start-to-finish term. It includes design, component manufacturing, building construction, shipping and delivery, assembly, and installation. First Plasma, scheduled for December 2025, will be the first stage of operation for ITER as a functional machine. It will be followed by a staged approach of additional assembly and operation in increasingly complex modes, culminating in Deuterium-Tritium Plasma in 2035.

This is no small achievement. It represents the collective contribution and commitment of ITER's seven members. 

I invite you to become an ITER partner. Explore the website. Learn more about the promise of fusion and ITER progress. ITER represents multinational collaboration on a grand scale: an essential feature for the future of our civilization.

Bernard Bigot, ITER Organization Director-General 2015-2022



Towards a "hydrogen economy"

Whether burning in a fuel cell or engine, or "fusing" in a tokamak, hydrogen will play a major role in clean energy production and consumption. In a recent article in the The European Files, ITER Director-General Bernard Bigot explores the potential benefits of a (near) future "hydrogen economy" that would include fusion as a "highly concentrated baseload energy source" and as a technology that could "produce clean hydrogen" to, among different uses, power transport vehicles.

"Like electricity, hydrogen is not a primary fuel," writes the ITER Director-General. It is produced using different energy sources, fossil fuels among them. Therefore, the environmental impact of this "grey hydrogen" is far from being neutral.

"To make the hydrogen economy truly green," he argues, "we will need a clean source of concentrated baseload energy." Hydrogen fusion has all the characteristics to fill that requirement.

Read the full article here.

ITER welcomes EU Commissioner for Energy Kadri Simson

Kadri Simson, European Union Commissioner for Energy, spends Friday 17 September 2021 at ITER. In the course of her visit to key site installations and during the press conference that followed, she describes ITER as a prime example of Europe's commitment to climate neutrality by 2050. 

See a report on her visit, and a video, here.

Scientific American: a photo reportage on ITER (December 2020)

"The pieces are finally coming together on the long-delayed ITER experiment to create nuclear fusion," writes Clara Moskowitz, senior editor for Scientific American covering space and physics. 

Her roundup on ITER, which appears in the 1 December 2020 issue of Scientific American, is illustrated by photographs of the ITER machine and plant courtesy of Manuela Schirra and Fabrizio Giraldi.

"ITER finally reached a long-sought milestone in July 2020 with the official start of machine assembly—when scientists began joining the various components provided by the partner countries. 'We have the same feeling as somebody who is supposed to run successive marathons, and you achieve the first one, but still you know there are many more to do,' says Bernard Bigot, who took over as ITER director general in 2015. 'It gives us more confidence in the future, but we know that nothing is [taken] for granted.'"

See the full article here.

Moskowitz, Clara (2020, December 1). "World's Largest Fusion Reactor Begins Assembly," 323, 6, 70-79.

Nuclear News: Understanding the ITER project in the context of global progress on fusion

In the January 2021 issue of Nuclear News, ITER Director-General Bernard Bigot writes a feature article called "Understanding the ITER project in the context of global progress on fusion."

"The promise of hydrogen fusion as a safe, environmentally friendly, and virtually unlimited source of energy has motivated scientists and engineers for decades. For the general public, the pace of fusion research and development may at times appear to be slow. But for those on the inside, who understand both the technological challenges involved and the transformative impact that fusion can bring to human society in terms of the security of the long-term world energy supply, the extended investment is well worth it. Failure is not an option."

Read the full article here.

The Role of Science in Creating Mankind's Future (Schiller Institute conference)

The Role of Science in Creating Mankind's Future, a conference of The International Schiller Institute, 5 September 2020

As part of an online conference organized by The International Schiller Institute on 5-6 September 2020, ITER Director-General Bernard Bigot took part in a panel on "The Role of Science in Creating Mankind's Future."

How can science help solve the big problems facing mankind by pushing the boundaries of our scientific and technological capabilities? Nuclear fusion and space are the areas of frontier scientific work which would be complete game changers for all people in all nations, and by their nature, these areas necessitate international cooperation for the common progress of all.

Join Director-General Bigot for his presentation on "The ITER Project: hydrogen fusion for the world energy supply" and later question and answer session here (Panel II, presentation at 23:30-39:08). Or read the transcript here.

Fusing the future—a power struggle (podcast interview)

BBC Babbage podcast, 5 June 2019

Director-General Bernard Bigot is one of the scientists interviewed during a 20-minute podcast on fusion produced by the BBC for its Babbage series.

Could the long-promised dream of nuclear fusion—to provide clean, limitless, carbon-free energy—finally be about to come true?

Listen here.

ITER chief: I won't live to see benefits of fusion, but I will help us get there

Science|Business, 15 March 2018

Bernard Bigot, Director-General of the world's biggest nuclear fusion project, tells Science|Business the perpetually out-of-reach energy source is finally in sight—so long as Trump does not scale back US involvement.

Read the full article.

"ITER is a global response to a global challenge"

Foro Nuclear, 17 January 2018

Bernard Bigot explains during this detailed interview with Spain's Foro Nuclear that "fusion energy is clean and safe" and ITER represents the culmination of decades of international research towards the industrial exploitation of fusion energy. Fifty percent of the total construction work scope through First Plasma is now complete. He believes that "in the second half of this century we will have accumulated enough knowledge and experience to create a large fusion industry."

Could you please give us a summary of the ITER Project for readers that are not familiar with it?

ITER is a unique research project that aims to duplicate, here on Earth, the nuclear reactions that occur at the core of the Sun and Sun-like stars—the fusion of hydrogen nuclei into helium and energy. As you can imagine, it is a huge technological challenge. But it is the key step to accessing a new energy source, one that could bring a decisive contribution to meeting humankind's ever-growing needs in energy. ITER represents both the culmination of six decades of international research carried out on hundreds of fusion machines worldwide and a decisive and indispensable step towards the industrial exploitation of fusion energy.

ITER is also unique in that it brings together seven partners representing 35 nations, half the world's population and 85% of its industrial production. Never in history have so many nations worked together to achieve a common goal. ITER is a global response to a global challenge.

100,000 kilometres of superconducting strands, 150 million degrees centigrade, 23,000 tonnes of reactor weight. These are some of the impressive numbers for this experimental fusion reactor. Is everything in this project equally immense?

Contrary to a fission reactor, which can be miniaturized to fit into a submarine or a space probe, an energy-generating fusion machine is necessarily large. In order to achieve a "burning plasma" that produces much more energy than that required to heat it, something that has never been done before, we need to heat and confine a large volume of plasma (~ 850 cubic metres). Some of the "impressive numbers" that you mention derive from the plasma volume or, in the case of temperature, from the necessary conditions to achieve the fusion of hydrogen nuclei.

What are the advantages of this technology, and the challenges for the coming years?

Fusion energy is clean, intrinsically safe and based on virtually inexhaustible fuels. It is clean because it does not generate CO2 or greenhouse effect gases, nor does it produce long-life/high-activity nuclear waste. It is intrinsically safe because of the very nature of the fusion reaction and because there are never more than 2 grams of fusion fuels in suspension inside the machine at a given time. Besides, and this is one of the reasons why a burning plasma is so difficult to obtain and maintain, the fusion reactions simply stop when all parameters cease to be nominal. A Fukushima or Chernobyl-type accident is simply not possible in a fusion machine.

Now the fuels: fusion energy can theoretically be obtained through several combinations of light atoms. However, in the present state of our technology, it is the reaction between two hydrogen isotopes, deuterium and tritium, that is the most accessible—although it is very difficult to realize. Deuterium poses no problem: it is easily extracted from water. With tritium, it's a bit more complicated. ITER will consume the few dozen kilograms that are available worldwide and experiment tritium production in situ, inside the machine. We will use the neutrons produced by the fusion reaction to produce tritium from lithium, a metal that is as abundant and widely distributed as lead. So our fuels are water and lithium and they are indeed virtually inexhaustible. There is enough deuterium in a half-filled bathtub, and enough lithium in a laptop battery to cover the electricity needs of an average European for 30 years ...

ITER is considered the world's most important research project. How do you handle your job as Director-General in a project of such large dimensions, and what are your priorities?

Becoming the ITER Director-General in March 2015 was not part of my professional plan. Following a long career in research, higher education and top government administration I had just completed two mandates as Administrator-General of the French Alternative Energies and Atomic Energy Commission (CEA) when I was asked by the ITER Council (the organization's governing body) to fill in the job. I had been closely associated with ITER since France's bid to host the project in 2003 and in 2007 I was delegated by the French government to act as High Representative for the implementation of ITER in France. I had a good knowledge of ITER and of the challenges the project was facing.

I accepted the Council's offer at a crucial moment in ITER history, when the project was entering into manufacturing and preparations for assembly. This new phase required a new organization—one tailored to meet the double challenge of delivering an installation that is both a research facility and an industrial facility. What we needed at that point and need even more today was integration. ITER is a complex structure, with a central team here in France and seven "domestic agencies" emanating from the seven ITER Members that are responsible for the in-kind procurement of machine components and installation systems. To achieve this integration, we needed a clear, centralized decision-making process under the authority of the Director-General. This being established and accepted by all, we could move on, as "One ITER," to promote and establish a project culture based on shared values of excellence, adherence to commitments, adherence to schedule and budget, and careful and effective use of public funds. And all the while making safety and quality our highest priority.

You lead a team composed of over 1,200 workers living in France but with multiple nationalities. What advice do you have, or what techniques do you use to lead teams with these characteristics?

The ITER staff hails from some 35 nationalities and needs to work as one entity, one large team bent on a common goal. How do we achieve harmony and efficiency? Through mutual respect and the understanding that each culture has its own work habits, traditions and "best practices." However at the end of the day, after well documented debates, decisions have to be taken and implemented by all. The global world we live in has not erased national particularisms. But instead of seeing this as a problem, we see it as an asset: we are building a project culture in a way that takes advantage of the diversity of these "best practices" to achieve an optimal result. And in case we forget these fundamentals, we can attend regular intercultural workshops and seminars... ITER is breaking new grounds and our experience is of great interest to intercultural professionals and students throughout the world.

 The interview continues on the Foro Nuclear website.

ITER marks 10 years of thermonuclear fusion in Provence

Provence Promotion, 15 November 2017

The program is at the midpoint of its journey to produce its first plasma in 2025.

Since 2007, the world's energy scientists have had their eyes trained on the Provence town of Saint-Paul Lez Durance. Ten years after the beginning of preparations to build an experimental thermonuclear fusion reactor, the ITER program is now at the midpoint of its journey to produce its first plasma in 2025. The 3,200 people who work on the site each day include many foreign engineers and scientists who are discovering the pleasures and quality of life in Provence.  Bernard Bigot, Director General of ITER Organization, looks back on the milestones of this experimental scientific undertaking, the only one of its kind in the world.

Why was Provence chosen to host the experimental nuclear fusion reactor?

The determination of national and local political leaders and the scientific and academic community, along with the fusion expertise and skills of CEA-Cadarache and the research conducted at Aix-Marseille Université, were decisive factors. The qualities of the site itself—neither too close nor too far from major cities, proximity to water and electricity resources, the quality of air and rail transport facilities—were also significant. After all, we have access to water from the Provence Canal and are connected to the European power grid. In 2002, the local governments in the Provence-Alpes-Côtes d'Azur region committed to providing €467 million in financial support to, among other things, create an international school in Manosque and build the ITER route along which the heaviest machinery is transported.

From 2007 to 2017: it has already been 10 years since the project started. Can you take stock and tell us about the outlook? What are the next milestones?

The international political consensus on fusion was formalized in 2006. A 35-year international agreement (2007-2042) was signed and, to date, 60% of the work has been completed to manufacture the components and erect the building that will house the Tokamak. The building will be completed in the first quarter of 2020. By the end of 2017, we will start assembling the components for the cryogenic plant. In 2019, we will begin assembly on the vacuum chamber components and vertical spools. The first plasma is expected in 2025. The project's overall cost will be €20 billion.

How many people work each day on the construction site?

A total of 3,200 people work on the ITER site each day: 2,000 work directly on the construction site and 1,200 are involved in implementing the international program. That includes 800 employees who work for the international ITER Organization and 400 highly skilled contractors. The European Union's joint undertaking for ITER (Fusion for Energy), which is responsible for building the structures, and the Engage consortium have 500 staff members on site.

Beyond that are the employees of the domestic agencies of the ITER members, or some 1,200 people who work in China, the European Union, India, Japan, South Korea, Russia and the United States to manage industrial contracts to manufacture the components for which they are responsible.  

Is it possible to measure the economic impact of ITER in Provence?

So far, the worksite has generated close to €6 billion in industrial (manufacturing, civil engineering) and service contracts in Europe. More than half of these contracts were awarded to French companies, and nearly three-fourths of those businesses are located in the Provence-Alpes-Côtes d'Azur region. Thus, several hundred million euro are injected into the local economy each year. ITER spends €300 million on payroll and local services (surveillance, accounting, etc.), in addition to its outlay on industrial contracts and subcontracting. Very hefty calls for bids to assemble the machine have been issued. These contracts will start in late 2018/early 2019 for a five- to six-year period.  More than 380 companies—SMBs and major corporations alike—are working to move the project forward. And 80% of them are French businesses...

The quality of life in our region is a real source of appeal to employees who come from all over the world to work here. Workers live in Aix, Manosque and Vinon and in the villages near the site. 

Is it reasonable to imagine that nuclear fusion will be part of the energy mix one day?

Nuclear fusion is a potential source of clean energy. It has zero impact on the climate or the environment and it is safe and provides massive, continuous power production. This makes it a major alternative to fossil fuels.  ITER does indeed aim to demonstrate that fusion can contribute to the worldwide energy supply. For the first time in history, we are going to be able to study "self-sustaining plasma" and the learnings are bound to be extremely valuable. We are also going to learn a lot about managing and maintaining a fusion facility. ITER is a decisive step forward in demonstrating the industrial feasibility and economic profitability of fusion energy.

Read the full article.

"Interest in nuclear fusion has risen immensely"

Die Welt, 10 April 2017

The experimental reactor ITER is intended to solve mankind's energy problems. According to Director General Bernard Bigot more and more countries want to join. But they all share one concern. Die Welt's Daniel Wetzel reports.

Mr. Bigot, ITER is the largest project of the international community. But at the moment it seems as if nations are drifting apart. Will the ITER project survive Brexit and Trump?

I have received a provisional pledge from the British government that they want to stay on the ITER project. And they have also made a clear statement in the Brexit document. It is not at all compulsory that Brexit must also mean the complete withdrawal from Euratom, in which the European ITER partners are organized. And withdrawal from Euratom would not necessarily mean withdrawal from ITER. The British fusion organizations and scientists are eager to continue their contribution to ITER through collaboration with Fusion for Energy, the EU body managing Europe's contribution to ITER, and the EUROfusion research collaboration. All of these aspects will have to be negotiated.

Do you hear the same from the US?

I visited the US after the inauguration of President Trump, and I spoke with Congressmen, the Department of Energy and the State Department. There are clearly uncertainties. My expectation is that every nation defends its own interests, whatever they may be. And the US wants to know if fusion technology works. Even though they have plenty of gas, oil and space for windmills and solar fields. It is the country that burns the most energy resources in the world. The Americans know that their current way of meeting the energy demand cannot last forever.

The US president is not exactly a friend of international cooperation.

I hear that the US president has nothing against international cooperation as long as it is a good deal for the US.

And is that so? The experimental reactor is being built in the South of France. And Europe accounts for 45 percent of the project.

That's why it's in fact a very good deal for Mr Trump. The US is paying only nine percent of the costs, but has access to 100 percent of the research results. In addition, the US has conducted outstanding research into fusion technology and has already built its own plants. If it withdrew from the Iter project, the US would have to pursue this technology alone. Because none of today's ITER partners would be likely to cooperate with them.

You might get over losing a financial share of 9 percent. But could ITER do without the technical input of the US?  

It would be very difficult to do without the US expertise. The central solenoid, for example, the most powerful magnet in the world, consists of 1,000 tonnes of superconducting material. These are not static, but dynamic coils, in which the magnetic field constantly moves up and down. This requires a great deal of expertise, and the US companies are able to deliver it. The same applies to ITER's fuel recycling, that is, the renewal of used tritium and deuterium. The US is the best in doing that. It would take us very long to recover from a potential American retreat. That is why it is so important for me that each of the seven ITER Members, not just the USA, feel that we are now serious about delivering.

And, can you deliver? Within the research community, they still tell the old joke about the "fusion constant": According to this, the first fusion reactor is always ready "in 40 to 50 years from now" — no matter when you ask.

That was before I started here. I have committed myself to deliver the first plasma within the budget in 2025. The schedule is fixed. In April 2016, 14 independent experts with special experience in the management of major projects have certified that we are relying on the best and most realistic schedule and planning.

Before you took office, the US and other important partners were still considering stepping out of the project. The costs exploded, the work did not progress. What had happened?

My predecessor had not made it clear enough that Iter is not just a research project, but an industrial one. As a researcher you gather all opinions, try to please everyone. But here you have to make decisions. I therefore accepted the office only on the basis that the Director-General has full decision-making powers. The seven ITER Member States have understood that this is the only way forward. This was a turning point. I got full power of authority, full authority over the staff, and I got a special fund of one billion euros that gives me the freedom to make decisions quickly. It relieves me of the obligation to apply for new financial resources for every new problem with all seven members.

The interview of Director-General Bigot continues on

A dream of clean energy at a very high price

The New York Times, 27 March 2017

On the front page of the Science section, journalist Henry Fountain takes readers to the busy ITER construction site, where "workers scurry around immense slabs of concrete arranged in a ring like a modern-day Stonehenge." In reviewing the ambitions, the status and the challenges of ITER, he speaks with ITER Director-General Bernard Bigot, fusioneers and members of the US government.

Visit The New York Times for the full article.

Tough Questions for ITER's New Director General

IEEE Spectrum, March 2015

On 5 March, you presented an action plan, proposing changes to the management of ITER. What are the specific problems that you are addressing? 

What has plagued the ITER project so far is that we had no efficient decision process, caused by the fact that the ITER Organization and the seven domestic agencies did not operate as an integrated team.  We have to make decisions every day, take financial decisions; we need to learn to work together. The question is not to 'control,' but the capacity to work together.

What are the changes you proposed?

Bigot:  There are three important points. The first one is that the members, represented by the domestic agencies  they have established, must consider it fully legitimate that the Director General is fully empowered to take any decision with eventual implications to the main interest of the project. The domestic agencies and the Central Team, here in France, worked quite independently, and I strongly believe that they should work closely together and be placed on an equal footing, and that we need someone who can arbitrate.  

Secondly, we need to set up an organization in such a way that people feel associated with the decisions taken. We will set up an Executive Project Board that will be chaired by the DG, and in which the seven domestic agencies will be represented by their heads. In this way we can discuss issues and take decisions. Previously, representatives of the domestic agencies had also the rank of Deputy-Director General, confusing the technical role they had in the ITER Central Team and their responsibility in representing their own country. Now the Central team consists only of technical people, that way we simplify the process of diffusion and discussion.

My last point is that I will ask the ITER Council to provide the DG with a reserve fund that will be fully available to implement the technical decisions taken by the Executive Project Board. We are now in a new  phase, starting with the assembly of the test reactor, and we have to operate as a single organization, despite the fact that the domestic agencies will continue as legally separate organizations.

Past delays and mistrust of the technology have sometimes resulted in funding problems. Is outreach sufficient?

Bigot: The questions are legitimate, and that is why we have to communicate.  We have to answer these questions, and not only from the general public.  A large part of my duties will be to keep in close touch with the members, with political leaders, congressmen, in such a way that they feel fully associated, fully understanding how we work, and what the possibilities of this technology are.

We have to demonstrate that we can deliver. ITER is not just a nice research project, it has to fulfill the expectation that in the long term fusion will be a reliable, sustainable, and environmentally friendly way to supply energy.

What makes you optimistic that the ITER project will succeed in demonstrating this?

Bigot:  I have now visited several of the members, and I realize there are many issues to be addressed. So far we are moving in the right direction. The more we advance with the project, the more we see what the difficulties are and we address them, and we find solutions. For example, a few years ago we did not master the technology for producing superconducting coils required for the large magnets. We are now proceeding with the manufacture, and we're satisfied with the results.   

And it is encouraging that some members are considering the next step, after ITER. China, with its large population, expects that fusion technology will be able to provide a share of their energy supplies some time this century. We view their own plans for fusion energy as an endorsement of ITER.  

Read the full interview in the IEEE Spectrum.

Press interview on the results of the November 2015 ITER Council

The ITER Council, which meets twice a year, is responsible for the promotion and overall direction of the ITER Organization. In November 2015, the ITER Council convened for the seventeenth time in a session that focused on the long-term schedule for the project. At the conclusion of the meeting, Director-General Bernard Bigot shared the outcome with members of the press.

During the Council meeting on 18-19 November, you presented an updated long-term schedule. Can you tell us how this schedule was received?

The meeting went well. Representatives from all of the ITER Members were able to ask questions, express their concerns, and formulate requests. In the end, we reached an agreement. The Council noted the proposal I made for the best technically achievable schedule for the project, and now the governing body of the ITER Organization needs additional time to be able to endorse—or amend—the proposal with resources.

The updated long-term schedule, and associated budget and staffing resources, will now be the object of an independent review mandated by the Council. The Council has committed to completing its review by June 2016; this is good news. The ITER Project will have a new schedule and, what's more, a new Baseline.

Can you give us an idea of the key dates of the new schedule?

Until the Council completes its analysis, no definitive project schedule can be announced. Of course we could not expect immediate approval of our proposals related to schedule, budget, and staffing. A fully qualified panel of experts will be mandated to verify the consistency and reliability of the proposed schedule, and also to see if there are areas that can be improved or accelerated. ITER is funded through public investment and this level of scrutiny is absolutely to be expected.

While the Council is deliberating, the members have agreed to give us the resources to perform to the milestones for 2016 and 2017. This is the best result that I could expect. It allows us to really keep the momentum.

The Council clearly expressed its appreciation for the progress accomplished in eight months on site, within the management team, by the ITER Organization and the Domestic Agencies, and in factories. We have a more integrated way of working. My commitment is that the ITER Organization and the Domestic Agencies never be the blocking point, the limiting step, for suppliers to deliver.

You spoke of having the resources you need for the next two years. What milestones must be achieved?

These management, construction and manufacturing milestones were specifically expressed in the Record of Decisions of the Council meeting, for example: the award of the Construction Management-as-Agent contract in 2016, the completion of winding on the first central solenoid module, the beginning of work on the B1 basement level of the Tokamak Complex, and the entry into service of the 400 kV switchyard. If my memory serves me well, there are 20 high-level milestones in 2016 and 9 in 2017. The way forward is clear; each Domestic Agency has a list.

Milestones are a way of managing a project that is a large and as complex as ITER. Below the highest-level milestones are many different strata—approximately 250 activities in the Level 1 schedule, 1,200 in the Level 2 schedule, and more than 150,000 sequences in the Level 3 schedule—each one a precisely defined task with an assigned owner. ITER is an industrial project now.

Is it fair to say that you have short-term approval?

The main thing is not to lose time—all are agreed on this. We need a clear schedule and resources. We have the chance in two years to demonstrate reliability and to confirm and consolidate trust.

We were able to keep our commitment to the Council at the needed level of quality and in the limited amount of time we set for ourselves. To do so required the integrated scientific insight, engineering skills, and managerial competencies of every part of the organization. As a team, we performed a bottom-up assessment of the project. As a team, we found solutions to design challenges. As a team, we conducted an exhaustive and comprehensive integrated review. We have taken the first essential steps toward establishing a much-needed project culture. 

Can you tell us more about the independent review?

The ITER Council wants to be sure of the credibility and the reliability of the proposed schedule to First Plasma. Is everything consistent? Can any improvements be identified? The review will be an external vision, provided by a panel of fully qualified experts who are specialized in tokamaks or large construction projects. These experts will give advice based on experience.

Did the Council identify any technical issues needing more examination?

This is a research installation, but for now it has to be managed like a construction project. The planned operational program is in the hands of researchers. This is why we are establishing a network of Scientist Fellows on a goodwill basis—scientists who agree to focus their research on pending questions related to ITER operation. The 25- to 30-year-old researchers today will be in charge of operating the machine tomorrow! If they don't "take ownership" of it in a figurative sense before then, they will not be ready.

An interview with ITER Director-General Bernard Bigot

ITER Newsline, 8 March 2015 

An academic, scientist and high-level civil servant who "has always been concerned with energy issues," Bernard Bigot, from France, is the third Director-General to be named at the head of the ITER Organization. He succeeds physicist Osamu Motojima, who was appointed in 2010, and Ambassador Kaname Ikeda, who led the project from late 2005 to 2010.
As he takes up his duties, Mr Bigot reflects on the reasons why he accepted the nomination and draws a broad outline of the action plan that he will implement.
"We are now entering into manufacturing and preparations for assembly," he says. "This new phase requires a new organization—one tailored to meet these two major challenges, because what we have to deliver now is both a research and an industrial facility."

Nuclear physics: Pull together for fusion

Nature, 09 June 2015

In June 2005, a group of industrial nations agreed on the location for the world's largest nuclear-fusion experiment: ITER, the International Thermonuclear Experimental Reactor, which they had decided to build jointly.
Today, roughly EUR 4 billion worth of construction contracts and EUR 3 billion in manufacturing contracts worldwide are underway and the first large components are being delivered to the site at St-Paul-lez-Durance in southern France.
Faced with slippage in the schedule—despite the best efforts of the more than 2,000 dedicated people working on ITER—in March 2015 the ITER Council moved to appoint Bernard Bigot, from France, to the top management position of the project.
Visit Nature for the full article.

New Head of ITER sweeps clean

Fusion in Europe, August 2015

An authentic comment from ITER's Director-General Bernard Bigot in the magazine Nature caused the fusion society to hold its breath. In the article "Pull together for fusion," published on 9 June 2015, Bernard Bigot listed several problems of mismanagement and miscommunication within the ITER Project and discussed how he intends to adjust the ITER management board proper to meet its needs. Fusion in Europe talks to Bernard Bigot about the details in the changed communication within the coming experiment on fusion, its delayed schedule and its influence on the European fusion roadmap. To the Director-General of the ITER Organization, EUROfusion's key facility, the Joint European Torus (JET) is of particular value for the mitigation of risks in future ITER plasmas.




A selection of recent project highlights in images ...

2022 2021 2020 2019 2018 2017 2016 2015


03 May 2022

ITER: Flying over... and through (April 2022, drone)

In this latest video filmed by drone in April 2022, fly in, around, and over the structures that have been designed to house—or to support—the world's largest tokamak.

13 April 2022

ITER Talks (8): The Tokamak Cooling Water System

Donato Lioce, head of ITER's Tokamak Cooling Water System Section, describes the plant system that will remove heat from the ITER machine and in-vessel components as "absolutely unique."

One of its peculiarities is the sheer volume of equipment—which is absolutely huge compared to the cooling system in a nuclear fission plant. More than 6,000 tonnes of equipment, 43 kilometres of piping, 3,000 valves, heat exchangers, pumps ... all housed over the seven levels in the Tokamak Building. Another is the fact that the system is designed not only to cool, but also to heat: the same equipment that circulates cooling water can also circulate hot water to "bake" tokamak components before plasma operation, or hot gas to "dry" components before maintenance. The cyclical nature of the ITER machine, designed for 30,000 plasma pulses, also has repercussions for the design of the tokamak cooling water system and its hundreds of clients.

Follow along as Donato describes in detail the different functionalities of the ITER tokamak cooling water system, system equipment, and the procurement effort that is underway now.

13 April 2022

ITER Talks (7): The ITER Research Plan, How to Reach Q=10

In this ITER Talk, the seventh in the series, ITER scientific expert Joseph Snipes walks us through plans for ITER operation. What does the "Q" in ITER's goal of Q=10 stand for? How will the machine and its systems be prepped for operation? What are the different steps between First Plasma and full fusion power operation?

The ITER Research Plan will proceed in four stages—a careful step-by-step strategy designed to achieve high plasma performance operation up to a plasma current of 15 MA, with key milestones along the way. Learn about the staggered assembly of key systems, the specific goals of each operation phase, the means to achieve the goals, and the importance of robust plasma control. By the end of the talk, you'll know (a lot) more about the unique capabilities of the ITER experimental device.

A note to viewers: This ITER Talk goes hand in hand with ITER Talk (6)—"Tokamak Physics for Nuclear Fusion" by the head of the ITER Science Division Alberto Loarte (viewable here).

01 March 2022

ITER Talks (6): Tokamak Physics for Nuclear Fusion

Alberto Loarte, head of the Science Division at the ITER Organization, introduces us to the physics of ITER plasmas and explains how the physics justifies the design of the machine. He reviews the deuterium-tritium nuclear fusion process, the role of magnetic fields in fusion, the specificities of the tokamak configuration, energy and particle confinement, heating and fuelling, and finally fusion power, particle exhaust and plasma-wall interactions. And he does it all in a clear and understandable way!

A note to viewers: This ITER Talk goes hand in hand with ITER Talk (7)—"The ITER Research Plan: How to Reach Q=10" by ITER scientific expert Joseph Snipes (viewable on the ITER YouTube channel here.

01 March 2022

ITER Talks (5): Machine Assembly

The size and weight of major ITER components, the careful handling, tiny assembly tolerances, the breadth of manufacturers, the tight schedule, complex interfaces ... all of these elements combine to make the assembly of the ITER machine an engineering and logistics challenge of enormous proportions.

In this new ITER Talks video, two members of the Construction Domain—Jens Reich (Ex-Vessel Delivery & Assembly Division Head) and Brian Macklin (Group Leader for Ex-Vessel Assembly)—describe how teams have planned for the assembly of the 23,000-tonne ITER machine, how the sequences are unfolding, what the main challenges are, and what lessons have been learned since the first machine assembly activity was launched in 2018.

13 December 2021

ITER Talks (4): Vacuum

In the fourth episode of the ITER Talks series, join ITER specialist Robert Pearce for a voyage into the universe of vacuum. Is vacuum absolutely nothing ... or is it something more than you could imagine? Does a "perfect vacuum" exist? How can vacuum be defined and measured, and how did scientists come to understand it? What is the importance of vacuum for ITER?

As head of the Vacuum Delivery & Installation Section at ITER, Pearce is responsible for the systems that will create the necessary vacuum conditions not only in the plasma chamber and the cryostat, but also in heating, diagnostic and auxiliary systems.

05 October 2021

ITER Talks (3): The ITER Magnets

Based on an in-house series of lectures that ran in 2018, ITER Talks is part of a broader knowledge management program at the ITER Organization. The program aims to identify and preserve the knowledge and expertise that exists within the project, and to share and disseminate this knowledge both within the organization and globally, as a way to promote fusion. The series is fully supported by the International Atomic Energy Agency, which considers this initiative as a stepping-stone for other educational initiatives in the future. 

In this third instalment—The ITER Magnets—former Magnet Division Head and current Senior Advisor at ITER, Neil Mitchell, takes a closer look at how magnets contain and control plasma inside the tokamak. He explains the key features that allow them to perform as expected, relates the incredible story behind the design and fabrication of ITER's ground-breaking coils, and explains how the installation and assembly of the magnet system is going on site at ITER.

21 September 2021

First ring-shaped coil produced on site is positioned in assembly pit

Poloidal field coil #5 is the second ITER ring-shaped magnet to be installed in the Tokamak pit. On 15 September 2021, the assembly teams lifted this 17-metre-in-diameter, 350-tonne coil to a cruising altitude of 25 metres, brought it across the assembly theatre, and lowered it to the bottom of the ITER machine well. This is the fifth major lift event of ITER assembly.

21 September 2021

ITER Talks (2): The ITER Blanket

Based on an in-house series of lectures that ran in 2018, ITER Talks is part of a broader knowledge management program at the ITER Organization. The program aims to identify and preserve the knowledge and expertise that exists within the project, and to share and disseminate this knowledge both within the organization and globally, as a way to promote fusion. The series is fully supported by the International Atomic Energy Agency, which considers this initiative as a stepping-stone for other educational initiatives in the future. 

In this second instalment—In Vessel Components: Blanket—René Raffray, Blanket Section leader, presents the many functions of the blanket system and the process of its construction. René also recounts the history of blanket design, as it adapted to new knowledge uncovered over the years. The current design is complex, with many smaller pieces that must come together before the blanket is ready to be installed. Once the blanket is complete, it will act as a shield to protect the vacuum vessel from the energy produced by the fusion reaction.

26 July 2021

ITER Talks (1): Introduction to ITER

Based on an in-house series of lectures that ran in 2018, ITER Talks is part of a broader knowledge management program at the ITER Organization. The program aims to identify and preserve the knowledge and expertise that exists within the project, and to share and disseminate this knowledge both within the organization and globally, as a way to promote fusion. The series is fully supported by the International Atomic Energy Agency, which considers this initiative as a stepping-stone for other educational initiatives in the future. 

The first video—"Introduction to ITER"—was recorded by ITER Head of Communication, Laban Coblentz. Why have 35 nations agreed to collaborate for four decades to realize the ITER program? What are the advantages of fusion and how can it contribute to the world's energy dilemma? How does a tokamak work? What is unique about ITER? What is the status of the project today? 

17 May 2021

Technical tour of the ITER worksite (FEC 2020)

Join ITER Communication Responsible Officer Kirsten Haupt on a 30-minute virtual tour of the ITER worksite. Filmed for the IAEA Fusion Energy Conference FEC 2020 (which took place on line in May 2021), the tour will take you inside the principal ITER buildings and introduce you to ITER experts as they describe "their corner" of the ITER planet.

31 March 2021

Inside the ITER vacuum vessel factory (Fusion for Energy)

A new video issued by Fusion for Energy, the European Domestic Agency, takes us onto the shop floor at Walter Tosto where three ITER vacuum vessel sectors are in various stages of fabrication.

29 March 2021

Machine construction timelapse (March 2020-March 2021)

This time-lapse video, shot from a camera positioned almost directly above the assembly pit, will take you from early May 2020, when the pit was still an empty space, to mid-March 2021 as ITER prepares for the insertion of the first ring-shaped magnets. See ten months of activity condensed into 1 minute and 28 seconds.

15 December 2020

The ITER you never see

As night falls and the gates close on the ITER construction site, a small group of men and women take over, each tasked with a specific mission. Watch this video for a glimpse of the "ITER you never see".

30 July 2020

ITER - The World's Largest Puzzle (2020)

The size and weight of the major components, the tiny tolerances and careful handling required for the assembly of huge and unique systems, the diversity of manufacturers, the tight schedule, complex interfaces ... all of these elements combine to make the assembly of the ITER machine an engineering and logistics challenge of enormous proportions. (Update of the 2015 video "ITER Assembly Part I: The World's Largest Puzzle.")

08 July 2020

The last leg of the journey for poloidal field coil #6

It's the last leg of the journey for a 400--tonne ITER magnet called poloidal field coil #6 (PF6), as it travels along the 100-kilometre ITER Itinerary between the Mediterranean Sea and the ITER site. Procured by Europe and manufactured in China, the massive component arrived on site on 26 June 2020 after a 10,000-kilometre voyage from its manufacturing site in Hefei, China.

23 June 2020

Four Domain Heads, one single goal

ITER's newly appointed Domain Heads describe their roles, as the ITER Project is poised to enter the critical machine assembly phase.

02 June 2020

First machine component installed

The first piece of the ITER Tokamak—the soup-dish-shaped base of the cryostat (1,250 tonnes)—was lowered into the Tokamak pit on 26 May 2020. Watch this video for a front-row view.

18 May 2020

Highlight Seminar Series: ITER Director-General Bernard Bigot

On 14 May 2020, ITER Director-General Bernard Bigot participated virtually in a Highlight Seminar organized by the Andlinger Center for Energy and the Environment (Princeton University, USA).

The Andlinger Center's stated goal is to translate fundamental knowledge into practical solutions that enable sustainable energy solutions and the protection of the environment.

In the seminar attended (virtually) by over 500 people, Bernard Bigot reviewed ITER status and fielded questions on upcoming milestones, the short- and longer-term perspectives of fusion energy, and how to get involved.

Listen to the one-hour program on the Princeton University website here.

27 April 2020

The story of vacuum vessel sector #6

In April 2020, the first sector of the ITER vacuum vessel—440 tonnes of unparalleled complexity—was finalized by Hyundai Heavy Industries in Korea. In this video, a ten-year industrial adventure is related by the people who were closest to the action. 

10 September 2019

Bernard Bigot on Roundtable: Is nuclear fusion a source of limitless energy

Roundtable, from TRT World, describes itself as a discussion program with an edge. Broadcast out of London, it's about "bringing people to the table, listening to every opinion, and analyzing every point of view." In September 2019, host David Foster invited an illustrious panel to discuss the potential of hydrogen fusion: ITER Director-General Bernard Bigot; Steven Cowley, director of the Princeton Plasma Physics Laboratory and former CEO of the UK Atomic Energy Authority; Mark Wenman, Imperial College London; and Colin Walters, current director of the UK Atomic Energy Authority.

Click here to watch to the 25-minute show.

Podcast with Director-General Bernard Bigot (Fringe FM)

Fringe FM is a podcast that "explores the edges of human understanding and looks at the technologies, trends and societal norms shaping our collective future," says creator Matt Ward. It invites today's top minds to discuss the future—from genetic engineering to manned space travel, AI and automation to factory farming, education and healthcare, the purpose of the podcast is to not only predict the future, but to create it.

Tune in to Fringe FM's wide-ranging conversation with ITER Director-General Bernard Bigot on all things fusion here.

18 October 2018

Can the world obtain clean nuclear energy 'by 2025'? (Sky News)

A second video report by Sky News, filmed on site in October 2018.

15 October 2018

Scientists to build a new prototype nuclear fusion reactor (Al Jazeera)

A report by Al Jazeera Paris, filmed on site at ITER in October 2018.

Podcast with Director-General Bernard Bigot (Titans of Nuclear)

Titans of Nuclear is a podcast featuring interviews with experts on nuclear energy by self-described engineer, robotics entrepreneur, and climate change thought leader Bret Kugelmass. In one of the most recent podcasts, Kugelmass interviews ITER Director-General Bernard Bigot on his experience in the nuclear field in France, the fundamentals of fusion energy, and the status of the ITER Project and its potential importance to the future of energy ...

Click here to listen to the 43-minute podcast.

15 May 2018

The ITER cryoplant (Air Liquide)

The ITER cryogenic plant will be designed, manufactured and installed by Air Liquide. More than 100 employees have been working for more than five years on the project; this video walks us through the complex plant planned for ITER.

15 November 2017

Interview with Bernard Bigot (VINCI Energies)

Bernard Bigot, Director-General of the ITER Organization, explains the principle on which the ITER fusion megaproject it is based, how it works and the purpose of the program.

29 September 2017

ITER's Neutral Beam Test Facility

At the Neutral Beam Test Facility in Padua, Italy, the components of ITER's most powerful heating system—neutral beam injection—will be put to the test. Two test beds—one operating an ITER-scale negative ion source, and the other a neutral beam injector at full acceleration voltage and power—will help resolve challenging technological issues and validate concepts before the systems are needed at ITER.

Europe, Japan and India are contributing all components according to the specifications of Procurement Arrangements signed with the ITER Organization; Italy is building the facility as a voluntary contribution to the neutral beam development program.

This video produced by facility host Consorzio-RFX in September 2017 shows how installation and commissioning are proceeding.

25 April 2017

ITER: Demonstrating the feasibility of fusion (CNBC)

"To make fusion available on Earth you need the largest size plant... the size is absolutely critical," so no single country can afford to construct this equipment alone on a reasonable time scale, explains ITER's Director General Bernard Bigot, in an interview with CNBC's Steve Sedgwick.

25 April 2017

Completing the "world's largest fusion experiment" ITER (CNBC)

In labs worldwide, scientists are collaborating, designing, prototyping and producing over 10 million parts. However how long will it take to finish ITER — one of the world's "most ambitious energy projects"? CNBC investigates.

26 January 2017

APAVE: Ensuring worker safety

With a large number of workers on the ITER construction platform, a large number of contracting companies, and overlapping project sites ... safety must be a concern shared by all. A 25-person team from APAVE, Health and Safety Protection Coordinator for the European Domestic Agency, is on the worksite daily, carrying out inspections, identifying possible dangers and training workers. In this video, we follow APAVE prevention consultant Cyril Lefebvre on his daily rounds.

19 January 2017

Is alluring but elusive fusion energy possible in our lifetime? (PBS NewsHour)

In this nine-minute feature, PBS NewsHour (US) investigates a science that it describes as "alluring but elusive"—nuclear fusion. With the aid of Stephen O. Dean, President of Fusion Power Associates and lifelong fusion researcher and advocate, the documentary takes us on a tour of fusion research today, from the Californian startup Tri Alpha Energy to the "engineering test reactor" ITER. NewsHour Science correspondent Miles O'Brien reports.

© PBS NewsHour

13 September 2016

Interview on Czech TV

In this special edition of Hyde Park Civilizace (Czech TV CT24), the ITER Director-General is invited to the Institute of Plasma Physics, Czech Academy of Sciences—home to the COMPASS tokamak. It's the occasion for the program's host to ask: How does ITER work? Why does the fusion community need this massive experiment?  What role for smaller tokamaks? And when will ITER be fully operational?

Answers in this 55-minute feature ...

04 May 2016

Fusion reactor still in works

In this three-minute video Voice of America reports on the status of the ITER Project, and talks with Director-General Bigot on recent progress, his participation in a recent US House of Representatives hearing on fusion energy science, and the commitment of the ITER Members to the new schedule and cost profile of ITER construction.


About the Director

On 5 March 2015, the ITER Council appointed Bernard Bigot, from France, Director-General of the ITER Organization. In January 2019, it renewed its confidence in Dr Bigot, voting to reappoint him to a second five-year term (2020-2025).
Bernard Bigot has been closely associated with ITER since France's bid to host the project in 2003. Following the ITER site decision in 2005, the signature of the ITER Agreement in 2006 and its ratification by all Members in 2007, Mr Bigot was delegated by the French government to act as High Representative for the implementation of ITER in France, a position that he has occupied since 2008.
With the responsibility of coordinating the realization of ITER and ensuring the representation of France to the ITER Members and the ITER Organization, he has followed the project for some twenty years.
In his long and distinguished career, Bernard Bigot has held senior positions in research, higher education and government. Prior to his appointment at ITER he completed two terms (2009-2012 and 2012-2015) as Chairman and CEO of the French Alternative Energies and Atomic Energy Commission, CEA. This government-funded technological research organization—with ten research centres in France, a workforce of 16,000 and an annual budget of EUR 4.3 billion—is active in low-carbon energies, defense and security, information technologies, and health technologies.
From 2003 to 2009 Bernard Bigot served as France's High commissioner for atomic energy, an independent scientific authority whose mission is to advise the French President and the French government on nuclear and renewable energy policy and in all the other scientific and technological domains where the CEA intervenes.
On his long experience in the field of energy, he says: "I've always been concerned with energy issues. Energy is the key to mankind's social and economic development. Today, 80 percent of the energy consumed in the world comes from fossil fuels and we all know that this resource will not last forever. With fusion energy we have a potential resource for millions of years. Harnessing it is an opportunity we cannot miss."
Bernard Bigot was trained at the Ecole normale supérieure de Saint-Cloud and holds an agrégation (highest-level teaching diploma in France) in physical science and a PhD in chemistry. He is a high-ranking university professor (classe exceptionnelle) at the Ecole normale supérieure de Lyon, which he helped to establish and which he directed from 2000 to 2003. Author of over 70 publications in theoretical chemistry, Bernard Bigot was also in charge of research at the Ecole normale supérieure and Director of the Institut de recherche sur la catalyse, a CNRS laboratory specializing in catalysis research.
In parallel to these academic responsibilities, he worked at the ministerial level in France as Head of the Scientific and Technical Mission (1993-1996), Director-General of Research and Technology (1996-1997), and Deputy Director for Research from 1998 to 2000.
In 2002, Bernard Bigot was appointed Principal Private Secretary to the Research and New Technologies Minister and Assistant Private Secretary to the Minister for Youth, Education and Research. It was during his tenure in this office that France proposed a site in Cadarache (southern France) to host the ITER Project.
Bernard Bigot is a Commandeur in the French Order of the Legion of Honour, a Commandeur in the Royal Swedish Order of the Polar Star, and an Officer the French Order of the National Merit. In October 2014 he received the Gold and Silver Star in the Japanese Order of the Rising Sun, and in September 2019 he received the Chinese Government Friendship Award.

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