Eni Plans Commercial Fusion Plant in Europe by Early 2040s
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Eni plans to deploy a commercial nuclear fusion power plant in Europe by the early 2040s or sooner. The Italian energy major is also building a business to supply fuel systems for future fusion reactors. Global private investment in fusion hit a record $4.48 billion in 2025, up 69% from a year earlier.
Key Facts
- Global private investment in fusion reached a record $4.48 billion in 2025, up 69% from the previous year.
- Eni plans to deploy a commercial fusion power plant in Europe by the early 2040s or sooner.
- Commonwealth Fusion Systems raised another $1 billion in July, bringing its total funding to $4 billion.
- Eni has committed more than $1 billion to buy electricity from Commonwealth Fusion Systems' first commercial U.S. plant.
- Eni formed a joint venture with the UK Atomic Energy Authority to develop and sell fusion fuel system services globally.
Eni's Fusion Strategy
Eni plans to deploy a commercial fusion power plant in Europe by the early 2040s or sooner, building on its investment in Commonwealth Fusion Systems. The company has committed more than $1 billion to buy electricity from Commonwealth Fusion Systems' first commercial U.S. plant. Eni is also developing a business to supply fuel systems for future fusion reactors, leveraging its experience in processing hydrocarbons and hydrogen. To that end, Eni formed a joint venture with the UK Atomic Energy Authority to develop and sell those services globally.
Fusion Industry Momentum
Global private investment in fusion hit a record $4.48 billion in 2025, up 69% from a year earlier. Commonwealth Fusion Systems raised another $1 billion in July, bringing its total funding to $4 billion as it targets the early 2030s for its first commercial power plant. The planned 400-MW ARC facility in Virginia became the first fusion project to apply for interconnection with PJM earlier this year. Google has agreed to buy 200 MW of the plant's output.
Tritium Fuel Challenge
A 1-GW deuterium-tritium fusion plant could consume roughly 55 kilograms of tritium per year, far beyond what could be supplied from naturally occurring sources. Tritium is radioactive, has a half-life of just 12.3 years, and exists naturally only in tiny quantities. Commercial reactors will need to produce much of their own tritium and continuously recover and recycle unused fuel. That requires closed-loop systems capable of extracting tritium from reactor breeding blankets and exhaust, purifying it, and feeding it back into the reactor.
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Eni Plans Commercial Fusion Plant in Europe by Early 2040s
