EDF blocks Czech nuclear contract with KHNP on legal grounds

EDF is challenging the legality of the nuclear contract awarded to KHNP, citing potential South Korean state support in violation of EU rules, leading to a temporary suspension of the Dukovany II project.

Share:

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

French utility Électricité de France (EDF) secured a court injunction in the Czech Republic on 6 May to halt the signing of a contract between the Czech government and Korea Hydro & Nuclear Power (KHNP), selected to build new reactors at the Dukovany power plant. This follows a prior complaint by EDF, dismissed by the Czech competition authority, questioning the integrity of the tender process.

A complaint based on European rules

EDF maintains that its action aims solely to ensure compliance of the project with European regulations. Vakis Ramany, Senior Vice President for International Nuclear Development at EDF, told Czech media that KHNP’s offer—estimated at approximately CZK200bn ($8.6bn) per unit—would be economically unfeasible without illegal state aid. He stated that this allegation is based on publicly available data and statements from the Czech government.

EDF claims its own bid, based on a 1,200 MW reactor versus KHNP’s 1,000 MW, was priced comparably, with only a marginal difference. The company guarantees technology, deadlines and costs for more than half of the contract but highlights that it cannot bear the risks associated with local administrative procedures.

Czech and South Korean opposition

Project company Elektrárna Dukovany II has appealed to the Czech Supreme Administrative Court to lift the injunction, supported by KHNP. The Czech Ministry of Industry and Trade argues that the contract does not fall under the EU’s foreign subsidy regulation, as the tender process began before the regulation took effect.

KHNP has rejected the subsidy allegations as baseless and considers EDF’s actions a threat to regional energy security. The company insists it has complied with all international regulations.

Ongoing EU review

On 2 May, European Commissioner for Industrial Strategy Stéphane Séjourné sent a letter requesting a delay in signing the contract, citing a preliminary review by the European Commission into possible distortions of the internal market caused by foreign subsidies. The Czech government described the letter as non-binding.

An agreement was reached between Prague and Brussels to fast-track consultations on the legal and technical aspects of the engineering, procurement and construction (EPC) contract. According to Reuters, the contract signing may now be delayed until after the general election scheduled for October.

Industrial stakes for the Czech sector

EDF claims its bid guaranteed 40% of the contract for Czech firms, potentially rising to 60% if four units are built. This could represent up to CZK350bn in local contracts, and an additional CZK750bn via EDF-led European nuclear projects.

According to Ramany, EDF does not oppose the construction of new nuclear reactors in the Czech Republic but seeks to ensure the project fully aligns with European standards. He added that only a builder receiving state subsidies could absorb the risks inherent in a complex European regulatory environment.

French state utility EDF has increased the maximum estimated cost for building six new nuclear reactors to €72.8 billion ($85.29 billion), representing a 40% rise over the original figure.
US-based Holtec has signed a memorandum of understanding with Hungary’s energy group MVM to assess the deployment of its SMR-300 technology, strengthening bilateral nuclear cooperation and opening prospects for a new market in Central Europe.
California-based startup Radiant has secured $300mn to build its first factory in Tennessee and prepare for the mass production of miniature nuclear reactors for off-grid applications.
Terra Innovatum has increased its interactions with the Nuclear Regulatory Commission to advance licensing of its SOLO™ micro-modular reactor, despite the partial shutdown of the US federal government.
The US nuclear regulator has extended the operating licences of three Illinois reactors by 20 years, strengthening Constellation's long-term industrial outlook for the Clinton and Dresden sites.
The SATURNE Industrial Chair aims to develop innovative uranium extraction methods, with joint funding from Orano and the National Research Agency over a four-year period.
US-based X-energy has signed a reservation agreement with South Korea's Doosan Enerbility to secure key components for its small modular nuclear reactors.
Samsung Heavy Industries has received Approval in Principle for a floating nuclear plant featuring two SMART100 reactors, marking a step toward the commercialisation of offshore small modular reactors.
The Indian government proposes a unified legal framework for nuclear energy, aiming to boost private investment and increase installed capacity to 100 GW by 2047.
Samsung C&T strengthens its presence in modular nuclear energy in Europe by signing an agreement with Synthos Green Energy to develop up to 24 SMRs in Poland and several Central European countries.
Israeli firm nT-Tao and Ben-Gurion University have developed a nonlinear control system that improves energy stability in fusion plasmas, strengthening the technical foundation of their future compact reactors.
The Indian government has introduced a bill allowing private companies to build and operate nuclear power plants, ending a state monopoly in place for over five decades.
Natura Resources enters a new regulatory phase for its molten salt reactor MSR-1, following the signing of a framework agreement with the US Department of Energy under the Reactor Pilot Program.
Norwegian Nuclear Decommissioning is surveying 22 localities to assess their interest in hosting storage facilities for radioactive waste from the country’s former research reactors.
GE Vernova Hitachi’s BWRX-300 small modular reactor has passed a key regulatory hurdle in the United Kingdom, opening the door to potential commercial deployment, despite no current plans for construction.
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.

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.