The ITER Challenge: Nuclear Fusion, a Future in Suspense

Is the future of nuclear fusion at ITER in jeopardy? An overview of the pandemic's impact and technical challenges.

Share:

Projet INTER

Comprehensive energy news coverage, updated nonstop

Annual subscription

8.25€/month*

*billed annually at 99€/year for the first year then 149,00€/year ​

Unlimited access • Archives included • Professional invoice

OTHER ACCESS OPTIONS

Monthly subscription

Unlimited access • Archives included

5.2€/month*
then 14.90€ per month thereafter

FREE ACCOUNT

3 articles offered per month

FREE

*Prices are excluding VAT, which may vary depending on your location or professional status

Since 2021: 35,000 articles • 150+ analyses per week

The ITER Challenge was highlighted at the 29thIEA Fusion Energy Conference. Is nuclear fusion, the promise of a clean, unlimited energy source, in danger? A new schedule for this multinational project, located at Cadarache in the south of France, is due to be presented to the Board for approval in the middle of next year. However, considerable delays are looming on the horizon, calling into question the achievement of the initial objective: the first fusion in 2025.

Major technical challenges

Barabaschi, head of the ITER project, speaks of a “change of culture” within the team, emphasizing transparency regarding problems encountered. While the power supply system has been completed, and the major components are in place, technical challenges have hampered the path to fusion.

The problem of cracks and welds in the vacuum vessel, as well as geometric non-conformities, led to the withdrawal of key components. Nevertheless, repair contracts have been awarded to remedy these problems. The transition of the first wall from beryllium to tungsten is also on the agenda, raising questions about the choice of materials.

Crucial Knowledge Management

In addition to the technical challenges, the ITER project has to deal with the issue of knowledge management. Much of the expertise required to build such an installation was lost along the way. Rebuilding this knowledge base is imperative to the success of the project.

The Impact of the Pandemic

Finally, the impact of the COVID-19 pandemic did not spare ITER. Delays and disruptions have created a climate of uncertainty about the future of nuclear fusion. While progress continues to be made, it is clear that adjustments are needed to achieve the targets set.

A Clean Energy Promise

The ITER project, the fruit of collaboration between thirty-five nations, represents hope for the future of energy. However, the obstacles on the road to nuclear fusion should not be underestimated. The crucial question remains: will nuclear fusion remain a promise or become a reality?

The future of nuclear fusion is still up in the air, but one thing is certain: the eyes of the world are riveted on ITER, because the success of this project could change the energy landscape.

Molten salt reactor developer Natura Resources has acquired Shepherd Power and partnered with NOV to scale up modular reactor manufacturing by the next decade.
China National Nuclear Corporation expects commercial operation in 2026 for its ACP100 reactor, following successful cold testing and completion of critical structures in 2025.
Start-up SEATOM has been selected to join NATO's DIANA programme with its micro nuclear reactor designed for extreme environments, reinforcing its position in dual-use marine and military energy technologies.
The Estonian Ministry of Economic Affairs has opened a tender to select a site and conduct initial environmental studies for a 600 MW nuclear power plant, marking a decisive step for the country’s energy future.
The European Commission has approved Poland's financial support plan for its first nuclear power plant, a €42bn project backed by public funding, state guarantees, and a contract for difference mechanism.
Six European nuclear authorities have completed the second phase of a joint review of the Nuward modular reactor, a key step toward aligning regulatory frameworks for small nuclear reactors across Europe.
Driven by off-grid industrial heat demand and decarbonisation mandates, the global small modular reactor market is set to grow 24% annually through 2030, with installed capacity expected to triple within five years.
US fusion energy leaders have called on the federal government to redirect public funding towards their projects, arguing that large-scale investment is needed to stay competitive with China.
Santee Cooper has approved a memorandum of understanding with Brookfield Asset Management to assess the feasibility of restarting two unfinished nuclear reactors, with a potential $2.7 billion payment and 550 MW capacity stake.
Helical Fusion has signed a landmark agreement with Aoki Super to supply electricity from fusion, marking a first in Japan’s energy sector and a commercial step forward for the helical stellarator technology.
India’s nuclear capacity is expected to grow by more than 13,000 MW by 2032, driven by ongoing heavy water reactor construction, new regional projects and small modular reactor development by the Bhabha Atomic Research Centre.
NextEra Energy has lifted its earnings estimates for 2025 and 2026, supported by power demand linked to long‑term contracts previously signed with Google and Meta to supply their artificial intelligence data centres with low‑carbon electricity.
London launches a complete regulatory overhaul of its nuclear industry to shorten authorisation timelines, expand eligible sites, and lower construction and financing costs.
Finland's Ministry of Economic Affairs extends the deadline to June 2026 for the regulator to complete its review of the operating licence for the Olkiluoto spent nuclear fuel repository.
Framatome will replace several digital control systems at the Columbia plant in the United States under a contract awarded by Energy Northwest.
The conditional green light from the nuclear regulator moves Cigéo into its final regulatory stage, while shifting the risks towards financing, territorial negotiations and industrial execution.
The drone strike confirmed by the IAEA on the Chernobyl site vault exposes Ukraine to a nuclear risk under armed conflict, forcing the EBRD to finance partial restoration while industry standards must now account for drone threats.
Deep Fission is installing a 15 MWe pressurised reactor 1.6 km underground at Great Plains Industrial Park, under the Department of Energy’s accelerated pilot programme, targeting criticality by July 4, 2026.
EDF commits to supply 33 MW of nuclear electricity to Verkor over 12 years, enabling the battery manufacturer to stabilise energy costs ahead of launching its first Gigafactory.
The full-scope simulator for the Lianjiang nuclear project has successfully passed factory acceptance testing, paving the way for its installation at the construction site in China's Guangdong province.

All the latest energy news, all the time

Annual subscription

8.25€/month*

*billed annually at 99€/year for the first year then 149,00€/year ​

Unlimited access - Archives included - Pro invoice

Monthly subscription

Unlimited access • Archives included

5.2€/month*
then 14.90€ per month thereafter

*Prices shown are exclusive of VAT, which may vary according to your location or professional status.

Since 2021: 30,000 articles - +150 analyses/week.