Helion and OpenAI: Sam Altman Energizes Nuclear Fusion

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Key Takeaways

1Helion, backed by Sam Altman, is discussing the sale of fusion energy to OpenAI, aiming for 12.5% of its production by 2030.

2Helion plans to build 800 reactors to achieve a production of 5 gigawatts by 2030, with a ramp-up to 50 gigawatts by 2035.

3The startup has raised $425 million, exploring a unique energy conversion technology using magnets.

💡Why it matters — This partnership could transform the energy supply for AI technologies, enhancing OpenAI's energy independence.

Helion and OpenAI: An Emerging Energy Alliance

The nuclear fusion startup Helion is currently in advanced discussions to supply energy to OpenAI, both benefiting from the financial backing of Sam Altman. This potential agreement, revealed by Axios, is still in its early stages and could allow OpenAI to acquire 12.5% of Helion's energy production, with ambitious targets of five gigawatts by 2030 and an expansion to 50 gigawatts by 2035. Meanwhile, Microsoft, OpenAI's partner, has already signed a similar agreement with Helion in 2023 to start receiving energy as early as 2028.

A Rapid Scaling Up for Helion

If Axios's forecasts materialize, Helion will need to significantly accelerate its production capacity. The company has announced that each reactor will be capable of producing 50 megawatts of electricity. To meet its goals, Helion will need to install 800 reactors by 2030 and add 7,200 additional units by 2035. This rapid expansion underscores Helion's confidence in its technology and its ability to outpace competitors, who generally aim for commercial operations in the early 2030s.

Helion's Response and Financial Context

For now, Helion has not responded to TechCrunch's requests for comments on these developments. However, the startup has already raised an impressive $425 million in its latest funding round, attracting renowned investors such as Mithril, Lightspeed, and SoftBank, in addition to Sam Altman.

An Innovative Approach to Nuclear Fusion

Unlike most fusion startups that focus on converting heat into electricity via steam turbines, Helion is adopting an innovative method. It is developing a reactor that uses magnets to directly convert fusion energy into electricity. The process takes place in a hourglass-shaped reactor where the fusion fuel is first converted into plasma at the ends, then propelled toward each other by magnetic fields. When they meet in the center, another set of magnets compresses the plasma until fusion occurs, generating energy that pushes the magnets apart and is converted into electricity.

Moving Towards Commercialization with the Polaris Prototype

Helion is currently testing its prototype named Polaris to prepare for its transition to commercial energy. In February, the company successfully generated plasmas reaching 150 million degrees Celsius in the reactor, approaching the target temperature of 200 million degrees Celsius necessary for viable commercial operations.

The Influence of Sam Altman

Although Sam Altman has stepped down from his position as chairman of Helion's board and has withdrawn from current discussions, his influence remains palpable in this strategic connection. The previous year, Altman also left his role at Oklo, a startup specializing in modular nuclear reactors, after its merger with AltC, his acquisition company. This withdrawal aimed to allow Oklo to explore new strategic partnerships, potentially with leading AI companies like OpenAI, according to Caroline Cochran, co-founder and COO of Oklo, in a statement to CNBC.