Small Modular Reactors (SMRs) and Advanced Reactors (AMR)

Small modular reactors (SMRs), miniaturized third-generation reactors, and advanced modular reactors (AMRs), representatives of the new nuclear generation, are designed to meet the energy challenges of the 21st century. These innovative reactors are distinguished by their compact size, modular construction, and ability to offer carbon-free, safe, and flexible energy production tailored to a variety of needs.

In France and Europe, SMRs are still in the development and licensing phases, but their progressive design and mass production promise to reduce construction times and investment costs compared to conventional nuclear reactors. Already in operation in Russia and under construction in the United States and China, these small reactors can be easily integrated into existing or isolated sites, helping to diversify the energy mix.

Technologically speaking, SMRs are based on several reactor designs, such as pressurized water reactors. These approaches improve intrinsic safety, energy efficiency, and sustainable nuclear fuel management. AMRs, meanwhile, push the boundaries of innovation even further with higher operating temperatures and optimized efficiency, paving the way for new industrial and thermal applications.

The flexibility of SMRs and AMRs is a major advantage. They can generate electricity on or off the grid, supply industrial sites with high-temperature heat, provide energy for district heating, and even be deployed on offshore platforms. This versatility makes them an ideal solution for decarbonizing energy use, supporting the development of isolated regions, and accompanying the transition to a low-carbon economy in countries with or without nuclear power. Combining compactness, modularity, and innovation, SMRs and AMRs are paving the way for a new era of nuclear power: more flexible, safer, and fully integrated into the global energy transition. These emerging technologies represent a strategic lever for achieving carbon neutrality goals while ensuring sustainable and sovereign energy production.