Eni targets a commercial fusion plant by the 2040s

Eni is one of Europe's biggest oil and gas companies. It said Sunday it wants to help build a commercial fusion power plant in Europe by the early 2040s. The plan leans on Commonwealth Fusion Systems, a US fusion startup Eni has backed for years. The two already have a power-purchase deal for a separate US plant. An Eni executive called fusion the company's likely "next refinery." That means a core business it runs for decades, the same way it runs its oil refineries today.

That framing is the real news here, more than the 2040s date. Oil majors don't usually describe experimental physics as their next core business. Fusion promises something today's clean power sources can't: huge, steady output without carbon emissions or nuclear waste. Eni is positioning itself early, as an investor and future operator, not just a funder. That's a bet that fusion reaches the power grid within a working career, not just a research timeline.

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Will the 2040s target hold? Fusion has a long history of "just one more decade" promises. Eni's plan depends on Commonwealth Fusion Systems hitting engineering milestones nobody has hit yet. The startup still has to prove a working reactor before anyone builds a commercial one on top of it.