Brazil produces fuel for indigenous nuclear sub
Brazil has produced its first fuel tablets for the future nuclear-powered submarine Álvaro Alberto
Fuel for the first nuclear-powered submarine (SSN) in the Brazilian Navy has been produced for the first time at the Electronuclear Energy Generation Laboratory (LABGENE) in Sao Paulo, leveraging a partnership between the navy and fuel cycle organisation Nuclear Industries of Brazil (INB).
The Brazilian Navy Technological Center in São Paulo and INB reached an agreement in 2021 for the manufacture of uranium dioxide tablets to use for submarine propulsion. These tablets were produced between August and December 2021 to be integrated with nuclear turbines developed by LABGENE.
‘After production, these inserts will undergo several tests to validate the fuel element design, under nuclear safety aspects, in order to meet the requirements of the licensing process,’ the Brazilian Navy noted in a 4 January statement.
On 25 November 2021, the Brazilian Navy signed an agreement to start building the hull of the future SSN (called Álvaro Alberto).
French shipbuilder Naval Group is providing technical assistance across all aspects of the future SSN except for the nuclear reactor.
Shephard Defence Insight forecasts that Álvaro Alberto will be commissioned in 2034 for an estimated production cost of $2.4 billion.
The nuclear submarine is part of Brazil’s PROSUB project that also includes domestic development and construction of build four diesel-electric Riachuelo-class boats.
Related Programmes in Defence Insight
More from Naval Warfare
-
DSEI 2025: Red Cat expands into USV production with focus on combat-proven technology
At DSEI 2025, Red Cat outlines its expansion from UAVs into uncrewed surface vessels (USVs), positioning itself as a multi-domain defence provider spanning land, sea, and air.
-
Anduril Australia wins A$1.7 billion Ghost Shark XL-AUV contract
The vessels are expected to deliver a major boost to Australia’s undersea warfare capabilities, with production set to start immediately.
-
Royal Canadian Navy will start operating class 2 UAVs in 2028
Acquired under Canada’s Department of National Defence ISTAR UAS project, the drones will be deployed from the Halifax-class frigates.
-
Newest US Coast Guard cutters go after Chinese vessels sailing in the Arctic
Cutters Earl Cunningham and Storis have been monitoring five Beijing research vessels navigating in the North Pole.
-
US Navy selects 25 companies for up to $1.9 billion nuclear submarine contract
The multi-award contract will support the scheduled repair and maintenance of nuclear-powered attack submarines at the US Navy’s primary public shipyards.