France's utility giant EDF and the French government have approved the dismantling of the Fessenheim nuclear power plant [1, 2].
The project marks a critical step in France's energy transition and safety management. As the oldest nuclear site in the country, the facility's closure and subsequent cleanup address long-standing safety concerns, and the environmental challenges of retiring aging nuclear infrastructure.
Located on the border with Germany, the Fessenheim plant consists of two reactors [2, 3]. The facility was built in 1971 [2] and operated for 43 years [2] before being shut down in 2020 [2]. The decision to cease operations followed a series of safety failures at the site [2].
The decommissioning process is expected to be a massive undertaking both in time and cost. The project is planned to last 22 years [2, 3]. The estimated cost for the dismantling work is €1.4 billion [2].
EDF will manage the complex process of removing radioactive materials and demolishing the structures. Because the plant is situated near the German border, the decommissioning is a matter of international interest regarding nuclear safety and environmental standards [1, 3].
The approval allows EDF to move forward with the technical phases of dismantling. The site has remained offline since 2020, and this approval provides the official timeline and budget required to return the land to a safe state [2].
“The project is planned to last 22 years.”
The decommissioning of Fessenheim serves as a blueprint for how France will handle its aging nuclear fleet. By committing to a multi-decade, billion-euro process, the government is acknowledging the high cost and technical difficulty of nuclear retirement, particularly for plants with known safety failures situated near international borders.





