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Controversial German-Brazilian nuclear agreement turns 50

June 27, 2025

On June 27, 1975, Germany and Brazil signed a treaty on cooperation in the field of nuclear energy. Despite Germany's nuclear phaseout, it still applies today.

A man wearing a white head hat stands at the turbines and electricity generators facility during a press tour
The Angra-2 nuclear power plant in Brazil is susceptible to earthquakes, landslides and flooding, with highly dangerous nuclear waste also accumulating on siteImage: Leo Correa/AP Photo/picture alliance

The agreement on the peaceful uses of nuclear energy, which almost nobody in Germany knows about, is half a century old. It has defied the German anti-nuclear movement, survived the nuclear disasters of Chernobyl in 1986 and Fukushima in 2011, and even the nuclear phaseout in 2023 with the shutdown of Germany's last three nuclear power plants.

The treaty aimed to construct eight nuclear power plants, a uranium enrichment plant and a nuclear reprocessing plant in Brazil by Siemens, including training for scientists.

The signatories were the German coalition government of the center-left Social Democrats (SPD) and neoliberal Free Democrats (FDP) under Chancellor Helmut Schmidt on the one side, and the Brazilian military dictatorship headed by President Ernesto Geisel on the other.

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"It was celebrated in 1975 as the biggest technology agreement of the century, the enthusiasm was huge on both sides," recalled 73-year-old German-Brazilian sociologist Luiz Ramalho in an interview with DW. Ramalho is chairman of the Latin America Forum in Berlin and has been a critic from the very beginning.

He has made terminating the treaty, which is only possible every five years, his life's work. At the end of 2024, he thought he had almost reached his goal with the center-left government the SPD, environmentalist Greens and FDP.

There were talks in the ministries at the time, and a termination was examined, especially in view of the notice period on November 18. But then the government fell apart in November 2024.

Greens made several attempts to end nuclear agreement

The Green Party has long wanted to end the German-Brazilian nuclear agreement. After all, the Greens are the party that evolved out of the anti-nuclear protests in the 1980s.

In 2004, the then-Green Federal Environment Minister Jürgen Trittin tried unsuccessfully to convert the nuclear agreement into one for renewable energies. Ten years later, the Greens' urgent motion in opposition to terminate the nuclear agreements with Brazil and India failed due to resistance from the coalition government of the conservative Christian Democrats, under Chancellor Angela Merkel (CDU), its Bavarian sister party, the Christian Social Union (CDU/CSU) and the SPD.

For Harald Ebner, member of the Bundestag for the Greens, the outcome of the cooperation is sobering. "Even at the drawing board, six of the eight nuclear power plants [in Brazil] stipulated in the agreement failed. But the other two are also anything but a success: Angra-3 became a 40-year unfinished construction site, and a single block, Angra-2, was finally connected to the grid in 2000 after 24 years of construction as the world's most expensive nuclear power plant at the time," he wrote to DW.

However, Angra-2 is susceptible to earthquakes, landslides and flooding, while more and more hazardous nuclear waste is accumulating on the site, for which there is no solution, said Ebner. In other words, there is nowhere to store the nuclear waste produced there.

"Brazil and Germany were both on the wrong track with the agreement, which failed in many respects," he said.

Global nuclear energy on the rise again?

For Ebner, nuclear power belongs in the past, but not everyone sees it that way. On the contrary: it is experiencing a renaissance worldwide. According to a study by the International Energy Agency (IEA), more than 40 countries are striving to expand nuclear power in order to meet the growing demand for electricity.

In Brazil, nuclear power accounts for just 3% of electricity generation. However, President Luiz Inacio Lula da Silva, who used to be rather critical of nuclear energy, expressed great interest in Russia's experience with small nuclear power plants at a meeting in Moscow with his Russian counterpart, Vladimir Putin, a few weeks ago.

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And even in Germany, the debate on the use of nuclear energy, which was thought to be dead, has picked up speed again. Although former Chancellor Angela Merkel pushed through the German nuclear phaseout in 2011 shortly after the nuclear reactor disaster in Fukushima, Japan, during the last Bundestag election campaign, Bavarian State Premier Markus Söder, among others, has called for the reactivation of three decommissioned nuclear power plants.

The new economy minister, Katharina Reiche from the CDU, also appears to be open to the use of nuclear power. She recently met with colleagues from the so-called European Nuclear Alliance, an association of countries such as France, Sweden and Poland that are committed to greater use of nuclear energy.

What does this mean for the German-Brazilian nuclear agreement? "The agreement is an early example of technological partnership and therefore a milestone in our bilateral relations," said Thomas Silberhorn, a CDU lawmaker and long-time member of the German-Brazilian parliamentary group. "Today, the focus of cooperation is on hydrogen and renewable energies. But openness to new technologies and energy policy independence remain relevant for Brazil and have also regained importance in Germany and throughout Europe."

However, the future of the half-century-old nuclear agreement could depend on the SPD in government. Nina Scheer, energy policy spokesperson for the SPD parliamentary group in the German Bundestag, wrote to DW that "The coalition agreement provides for an intensification of the strategic partnership with Brazil. Due to the importance of the energy transition for strategic and sustainable development potential, this also involves replacing the German-Brazilian nuclear agreement with partnerships in the transition to renewable energies. This includes ending the nuclear agreement."

Uranium deals with Russia

Miriam Tornieporth will undoubtedly be happy to hear that. She works for the German anti-nuclear organization ausgestrahlt e. V., which was founded in 2008 and has been campaigning for the termination of the German-Brazilian nuclear agreement for years.

"This cooperation is simply totally out of date and does not include, for example, any safety aspects that should be included from today's perspective," Tornieporth told DW.

The state-owned Russian nuclear industry company signed an agreement with Brazil for uranium supplies in 2022Image: Sergey Bobylev/Anadolu/picture alliance

The controversial agreement has become particularly explosive due to the latest geopolitical developments, more specifically the Russian war of aggression against Ukraine. This is because the French nuclear company Framatome produces fuel rods for nuclear power plants in Lingen, Lower Saxony, in cooperation with Russia's Rosatom. The state-owned Russian nuclear industry company has, in turn, concluded an agreement with Brazil for uranium supplies in 2022.

"We assume that Russian material is processed both at the Gronau uranium enrichment plant in North Rhine-Westphalia and in Lingen and sent from there to Brazil. In contrast to other forms of energy, the Russian nuclear industry is also exempt from sanctions," said Tornieporth.

"As Germany has shut down its nuclear power plants, it would be logical also to shut down the plants in Gronau and Lingen to complete the nuclear phaseout."

This article was originally written in German.

While you're here: Every Tuesday, DW editors round up what is happening in German politics and society. You can sign up here for the weekly email newsletter, Berlin Briefing.

Oliver Pieper Reporter on German politics and society, as well as South American affairs.
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