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Elon Musk on Nuclear Energy

Pro-Nuclear Power Advocate (strong)

Elon Musk advocates for the increased use of nuclear energy, especially in response to geopolitical instability impacting fossil fuel supplies. He explicitly called on European nations to restart dormant nuclear power stations and increase the output of existing ones, stressing that this is critical to national and international security.

Musk considers the shutdown of operational nuclear plants to be “total madness,” provided the location is not prone to major natural disasters like tsunamis or severe earthquakes. He has sought to counter the historical stigma surrounding nuclear power by offering to publicly eat food grown near a reactor to demonstrate its safety, having done a similar act in Japan after the Fukushima incident.

More recently, Elon Musk has sharply pivoted his focus within the nuclear sphere, dismissing terrestrial nuclear fusion as “super dumb.” He argues that humanity should instead focus its massive investment potential on harnessing the Sun, which he describes as the planet’s “most powerful fusion reactor” and an abundant, clean energy source that is currently vastly underused.

Context

Musk's position on nuclear energy is highly relevant because his companies, Tesla and Tesla Energy, are major players in the clean energy sector, focusing on solar power and battery storage. This places him at the center of global energy discussions, making his views influential on policy and investment direction.

His support for nuclear power acts as a pragmatic bridge between his core renewable energy focus and the immediate need for reliable, carbon-free baseload power to meet climate goals and energy independence targets.

Key Quotes

Hopefully, it is now extremely obvious that Europe should restart dormant nuclear power stations and increase power output of existing ones. This is *critical to national and international security*.

social-media March 7, 2022 — Musk tweeted this advice to Europe amid Russia's invasion of Ukraine.

Also nuclear is vastly better for global warming than burning hydrocarbons for energy.

social-media March 7, 2022 — Musk stated this while advocating for nuclear power expansion.

It is very important that Germany will not shut down its nuclear power stations. I think this is extremely crazy.

interview March 26, 2022 — Musk expressed this view during an interview with Mathias Döpfner.

calls for nuclear fusion reactors on Earth 'super dumb,' arguing that humanity is ignoring the most powerful fusion reactor already available—the Sun.

article December 17, 2025 — Musk's recent comment on nuclear fusion technology.

Comparison

  • Solar Energy: Elon Musk strongly prioritizes solar energy, often positioning it against terrestrial nuclear technology, even though he supports existing fission plants. He considers the Sun to be the ultimate, abundant fusion source.
  • Fossil Fuels: While advocating for nuclear, Musk has also called for an immediate increase in oil & gas output during extraordinary times like the Ukraine conflict, showing a willingness to use any available energy source to avoid reliance on autocrats.