Proxima Fusion, a Munich-based startup, has closed a funding round of €411 million led by XTX Ventures and East X Ventures, with strategic investments from Alphabet's Google and German utility RWE.

The company is pursuing stellarator technology and aims to demonstrate a fusion plant in the early 2030s, followed by a commercial facility later in the decade.

CEO Francesco Sciortino emphasized Europe’s race with the US and China to deploy the first fusion power plant and highlighted investor support as critical to building a generational energy technology company.

Fusion energy, unlike conventional fission, relies on the fusion of atoms and does not involve a perpetually dangerous chain reaction or long-lived waste, though the technology remains in development.

Google cautioned that while fusion could transform energy production, commercialisation is immensely challenging and not guaranteed.

Google has also noted fusion as a potentially clean and abundant energy source, but acknowledges the path to commercialization is uncertain.

Market opportunities include software tools to optimize AI workloads based on fusion plant availability, integrating energy planning with AI workload scheduling.

The announcement reinforces ongoing interest in fusion as a carbon-free electricity source to support growing data-center energy needs and industrial decarbonisation.

AI firms may pursue power purchase agreements and co-located data centers with fusion developers, using phased pilots that blend grid power with early fusion output to manage risk during maturation.

Advances in stellarator performance reduce plasma instability versus tokamaks, potentially improving commercial viability and informing AI-caused capacity planning for large model deployments.

Competition in fusion is intense globally, with significant US and Chinese investment; views vary on timing and feasibility, from decades away to major future industry.

Fusion is envisioned as inexpensive and generating less radioactive waste than fission, with potential to enhance energy independence over time.