Belgium Nuclear Buyout: State Risks Being Outgunned by Engie

As the Belgian government races to finalise the nationalisation of the country’s entire nuclear fleet from French energy giant Engie by October 1, a growing chorus of questions is emerging over whether the state possesses the expertise to negotiate a deal that protects the public interest. An investigative report published on June 26 by La Libre Belgique has laid bare concerns that ministerial cabinets may lack the technical, financial, and legal firepower to bargain on equal footing with a company that has operated these assets for decades.

The High-Stakes Negotiation

The Arizona coalition government, led by Prime Minister Bart De Wever (N-VA), signed a letter of intent with Engie on April 30, 2026, setting the framework for the acquisition of all seven nuclear reactors — Doel 1-4 and Tihange 1-3 — along with associated personnel, subsidiaries, and all liabilities including decommissioning obligations. Only two reactors (Doel 4 and Tihange 3) are currently operating, having been extended until 2035 under a 50/50 joint venture with Engie. The other five have been progressively shut down since 2023.

As Brussels Signal reported at the time of the announcement, Energy Minister Mathieu Bihet (MR) described the acquisition as essential for “Belgium’s long-term energy future,” with the objective of building a financially viable activity that supports security of supply and climate objectives. The target date for finalising a protocol agreement is October 1, 2026.

The Competency Question

The core of the concern, as articulated by La Libre journalist Antonin Marsac, is whether the state has sufficient skills to negotiate “d’égal à égal” — on equal terms — with a group that has mastered these nuclear assets for generations. The question has become particularly acute following the departure of the chief of staff of Energy Minister Mathieu Bihet in early June 2026. As La Libre reported, Gerben Croonenborghs left his post without an immediate successor being named. Pierre Brassinne has since taken over the role.

The staffing instability comes at a critical moment. According to a related La Libre analysis of the five main obstacles to nationalisation, the question of resources within ministerial cabinets for negotiating with Engie is a significant hurdle. Furthermore, France is reportedly seeking 10,000 people per year in the nuclear sector, potentially competing with Belgium for scarce nuclear expertise.

The Financial Stakes

No financial details have been publicly released for the current negotiations. However, the previous 2023 deal for the 10-year extension of two reactors involved a €15 billion lump-sum payment from Engie to transfer nuclear waste liabilities to the Belgian state, plus €1.6-2 billion in reactor upgrades. The cost of decommissioning all nuclear plants and managing waste has been previously estimated at €41 billion.

The Green Party (Ecolo) has been sharply critical. Party President Aimen Horch described the buyout as “buying up dilapidated nuclear reactors” and “an irresponsible waste of billions,” as Brussels Signal reported. Vlaams Belang, while supporting the nuclear direction, has questioned the lack of price transparency.

Political Dynamics

The Arizona coalition — comprising N-VA, MR, Les Engagés, CD&V, and Vooruit — presents a united front publicly. However, as La Libre political journalist Frédéric Chardon noted, the conditions of the buyout will determine political reactions. The outcome of negotiations will test whether this unity holds.

Prime Minister De Wever has been blunt about the failures of past policy, describing the original 2003 phase-out law as “the stupidity of the century” and a “naïve dream” that left the nation vulnerable to blackouts and de-industrialisation. Parliament formally repealed the phase-out law in May 2025.

Engie’s Strategic Pivot

For its part, Engie has made clear that nuclear power no longer fits its corporate strategy. The French group has pivoted towards renewables, battery storage, and regulated infrastructure. In February 2026, Engie’s CFO Pierre-François Riolacci stated the company had “little interest in maintaining nuclear assets.” This asymmetry — a motivated buyer facing a seller eager to exit — further complicates the negotiating dynamic.

What to Watch For

With the October 1 deadline approaching, several critical questions remain unanswered: What is the actual purchase price? How will the estimated €41 billion in decommissioning costs be managed? Can the Belgian state recruit and retain sufficient nuclear expertise to operate the plants? And will the Arizona coalition’s unity survive the scrutiny of the final deal?

The Brussels Times previously reported that Engie had warned Belgium that failure to make key appointments would constitute a breach of obligations. As the clock ticks toward October, the question is no longer just whether Belgium can afford to buy the plants — but whether it has the people to negotiate the price.