Renewal Reinforces Eletronuclear’s Commitment to Nuclear Energy in Brazil and Projects Modernization of the Plant by 2044.
Eletronuclear secured, this Thursday (21), the renewal of the operating license for the Angra 1 plant for another 20 years. With this, Brazil’s first nuclear plant can operate until December 2044. The decision was formalized by the National Nuclear Energy Commission (CNEN) and marks an important step in extending the lifespan of one of the largest energy generation projects in the country.
The renewal will be accompanied by a robust investment of R$ 3.2 billion, to be made between 2023 and 2027. The financial contribution includes four annual installments of approximately R$ 720 million until 2026 and R$ 320 million in the last year. This resource will be directed towards the complete modernization of the plant, an essential step to ensure its efficiency and safety.
Modernization and Achievements of Eletronuclear

The process to expand the operation of Angra 1 began in 2019 when Eletronuclear officially requested the renewal. Since then, the company has dedicated an exclusive technical group to meet regulatory requirements and make significant improvements. This renewal is considered a milestone in the strategic projects of Eletronuclear, which also prioritizes the resumption of construction of the Angra 3 plant.
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Russia is sailing all 8 nuclear icebreakers of its fleet simultaneously for the first time in history, as the Arctic freezes two weeks earlier than expected.
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With 39 years of halted construction and R$1 billion draining annually without generating a single watt, Angra 3 has become a ticking time bomb for Eletronuclear — while China put 20 new reactors into operation in the same period.
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The United States spent US$ 15 billion to excavate 8 km of tunnels inside a mountain in the Nevada desert — the world’s safest nuclear waste repository was ready, but never received a single barrel of waste.
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China has just commissioned the world’s first commercial mini-nuclear reactor — it is only 14 meters tall, generates energy for 526,000 homes, and prevents 880,000 tons of CO₂ per year.
According to Raul Lycurgo, president of Eletronuclear, the hard work of the past five years reflects the company’s commitment to nuclear energy in Brazil. He compared Angra 1 to plants in the United States that operate with the same characteristics and have already received licenses to operate for up to 80 years. “This achievement demonstrates our technical capability and long-term vision,” emphasized Lycurgo.
Angra 1: Legacy and Efficiency
In commercial operation since 1985, Angra 1 features a pressurized water reactor (PWR), the most common type in nuclear plants around the world. With a capacity of 640 megawatts, the plant can meet the consumption of a city of 2 million inhabitants, providing energy to the national electric system 24 hours a day.
Only in 2023, Angra 1 generated 4.78 million MWh, with an impressive load factor of 88.24% over the last five years. This indicator places the plant among the most efficient in the world, operating an average of 322 days per year at maximum capacity.
Although the plant was acquired from the American Westinghouse as a complete package without technology transfer, Eletronuclear has managed to develop its own expertise over the decades. Today, the company uses efficiency indicators superior to similar plants, in addition to continuously investing in technological modernization.
Energy for the Future
The renewal of the Angra 1 license and the planning for the coming years reinforce Eletronuclear’s role in strengthening the nuclear energy sector in Brazil. With robust investments and a strategic vision, the company paves the way for a more sustainable, efficient, and safe energy future.

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