The Cattenom site is a large nuclear power plant located near Metz in the Grand Est region of France. It sits on the Moselle valley close to international borders and is an important element of France's electricity infrastructure. The plant is operated as part of the country's commercial nuclear fleet and supplies power to the regional and national grid.

Design and main components

Cattenom comprises four identical reactors of the pressurized water reactor type. Each reactor has an electrical output of about 1,300 megawatts, giving a combined gross capacity near 5,200 MW. The site includes multiple turbine halls, cooling systems that rely on river water, and auxiliary facilities for fuel handling and spent-fuel storage. Routine maintenance and periodic safety upgrades are part of normal operations.

History and development

The plant was built during France's expansion of nuclear power in the late twentieth century as part of a program to increase domestic generation capacity. Units were brought into service in successive stages and have since been integrated into national dispatching and reserve arrangements. Over time the site received modernization work to meet evolving regulatory and technical requirements.

Operation, role and oversight

As an active power station, Cattenom provides large-scale baseload generation to help meet demand and support grid stability. Its output has put it among the more productive plants in France in some years. The plant is subject to national nuclear regulation, periodic inspections and reporting to ensure safety and radiological protection for workers and the public.

Notable facts and context

  • Reactor type: pressurized water reactors.
  • Installed units: four reactors, ~1,300 MW each (total around 5,200 MW).
  • In a past ranking by annual production (2006), Cattenom produced the third most electricity among French plants, after Gravelines and Paluel.

Because of its size and proximity to neighboring countries, Cattenom has been a subject of cross-border interest and public discussion about safety, environmental impact and emergency planning. Technical details, operational records and regulatory decisions are published by responsible authorities and can be consulted for current information.