Proxima Fusion, a German startup chasing the dream of limitless clean energy, has secured €411 million ($469 million) in a funding round that values the company at €2.4 billion. The investment syndicate includes major strategic players: national energy giant RWE AG and Alphabet Inc.’s Google. The company aims to develop a commercial nuclear fusion plant that could come online within the next decade.
Nuclear fusion — the process that powers the sun — promises near-limitless energy with minimal waste, but it has remained tantalizingly out of reach for decades. Proxima Fusion is one of a new wave of startups betting that recent advances in materials science and magnetic confinement can finally make it viable. The backing from both a major utility and a tech titan signals growing confidence in the sector.
The €411 million raise values Proxima at €2.4 billion, according to Bloomberg. Google and RWE join existing investors in what is one of the largest private fusion fundraising rounds to date. Proxima has not disclosed a target date for its first plant beyond a vague 2030s timeline.
If successful, Proxima's reactor could reshape energy markets, offering a carbon-free baseload power source that could complement renewables. The involvement of RWE provides a direct path to the European grid. Google’s participation, meanwhile, hints at the tech sector's growing hunger for reliable clean electricity to power AI data centers.
Yet the road is long. No fusion startup has yet demonstrated net energy gain at a commercial scale, and regulatory frameworks for fusion plants remain underdeveloped in Europe.