What does it take to power the future of artificial intelligence? Apparently, the same process that powers the Sun. OpenAI is in active discussions with Helion Energy to secure a landmark fusion power supply agreement a deal that could reshape how the world’s most powerful AI company keeps its data centers running for decades to come.
Helion Energy and OpenAI Explore a Gigawatt-Scale Power Agreement
The Numbers Are Almost Too Big to Believe
This isn’t a modest pilot program. The proposed framework would allocate 12.5% of Helion’s projected output to OpenAI — reaching 5 gigawatts by 2030 and potentially expanding to 50 gigawatts by 2035.
For context, Washington state’s Grand Coulee Dam — the largest hydroelectric facility in America has a capacity of just 6.8 gigawatts. The Register OpenAI’s projected energy appetite by 2035 would dwarf it many times over.
The talks reflect a direct move toward energy procurement as AI computing demand accelerates, and follow a similar arrangement Helion signed with Microsoft in 2023 — underscoring a broader strategy among leading AI players to secure next-generation, low-carbon power well ahead of commercial fusion’s maturity.
Sam Altman’s Unusual Role — Investor, CEO, and Now a Step Back
Navigating a Serious Conflict of Interest
Here’s where the story gets complicated. OpenAI CEO Sam Altman is also the largest individual investor in Helion, with a stake estimated at $375 million. Stocktwits That’s a significant overlap for a deal of this magnitude.
To his credit, Altman has stepped down from Helion’s board and recused himself from the negotiations to avoid conflicts of interest a move that prompted careful governance oversight from Helion’s board. Stocktwits
Altman led Helion’s $500 million Series E funding round in 2021 and also participated in the company’s $425 million Series F round in January 2025. The Register His fingerprints are all over Helion’s rise which makes the governance question genuinely tricky, even with his recusal.
The Big Catch: Fusion Energy Hasn’t Crossed the Commercial Finish Line
Breakthrough Science, Unproven at Scale
This is the part that deserves real scrutiny. Helion believes it is on the cusp of “scientific breakeven” the point where its fusion process generates more energy than it consumes but no private company has yet achieved this milestone.
Helion’s Polaris prototype has reached plasma temperatures of 150 million degrees Celsius, nearing the 200 million threshold it believes is necessary for sustained fusion reactions — a technical milestone, but not yet a commercial one.
The manufacturing challenge is just as daunting. Meeting the proposed demand would require Helion to build roughly 800 reactors within five years and more than 7,000 additional units over the following decade a supply chain that simply does not yet exist. This is, in every sense, an industrial moonshot.
Conclusion — A Bet on the Future That Could Change Everything
The Helion–OpenAI talks are more than an energy deal. They highlight how tightly the future of AI is becoming linked to the future of energy — drawing capital toward new generation technologies and accelerating timelines that once seemed distant. Cambridge Core
If it works, OpenAI gains a clean, potentially low-cost energy supply that rivals can’t easily replicate. If it doesn’t, the world’s most valuable AI company will need a backup plan fast. Either way, the era of AI companies treating power as an afterthought is officially over. Bookmark this story. The energy arms race is just getting started.