Wedoany.com Report-Jun 20, Industrias Nucleares do Brasil (INB) has entered into a BRL50 million (US$9.1 million) contract with Brazil’s Ministry of Science, Technology and Innovation and the Financing Agency for Studies and Projects to develop and test technologies for a planned microreactor. The three-year project involves collaboration with research centers, universities, the navy, and institutions such as the Institute of Energy and Nuclear Research and the Institute of Nuclear Engineering.

INB will provide nuclear fuel, specialized engineering services, and technical and administrative support for the initiative. The project, led by the National Nuclear Energy Commission (CNEN), aims to develop a 3-5 MW microreactor designed to fit within a 40-foot container and operate remotely for over a decade without refueling. Potential applications include supplying reliable power to remote towns, hospitals, and factories, reducing reliance on diesel generators.

INB President Adauto Seixas stated: “This is a historic milestone for the Brazilian nuclear sector. INB reinforces its vocation not only as a producer of nuclear fuel, but also as a technology-based, strategic company that is a leading player in the development of innovative solutions for the country. Nuclear microreactors have enormous potential to bring clean, safe and sustainable energy to remote regions, in addition to meeting industrial, defence and national energy security demands.”

INB’s Director of Nuclear Fuel Reinaldo Gonzaga added: “This technology could revolutionise distributed energy generation in Brazil.”

The CNEN reported in March 2025 that the project is at Technology Readiness Level (TRL) 3, involving mathematical modeling and preliminary studies. The goal is to reach TRL 6, demonstrating the technology in a relevant environment closer to practical use. The microreactor is part of global efforts to develop small-scale nuclear solutions, with the International Atomic Energy Agency defining microreactors as those up to 20 MW, suitable for transport to isolated areas.

Brazil currently operates two nuclear power reactors, Angra 1 and Angra 2, which supply about 3% of the country’s electricity. The Angra 3 project, a 1,405 MW pressurized water reactor, remains under consideration for completion following multiple construction pauses since 1984.

The microreactor initiative reflects Brazil’s commitment to advancing sustainable energy solutions, particularly for remote and industrial applications, through innovative nuclear technology development.