---
title: "Commerce takes equity in Helion at its $15.5 billion Series G value, plus up to $175 million for chip R&D"
description: "The Commerce Department will hand Helion up to $175 million and take equity priced at the startup's $15.5 billion Series G, while Commonwealth Fusion Systems gets less than half. The money funds the high-voltage power electronics that fusion generators and AI data centers both need."
publisher: "The Inference"
section: "Deals"
published: 2026-10-22T15:39:48.385Z
modified: 2026-10-22T15:39:48.385Z
canonical: https://theinference.org/article/commerce-takes-equity-in-helion-at-its-15-5-billion-series-g-value-plus-up-to-175-million-for-chip-r-d
language: en
keywords: "Helion, Fusion Energy, CHIPS Act, Government Funding, Semiconductors"
---

# Commerce takes equity in Helion at its $15.5 billion Series G value, plus up to $175 million for chip R&D

> The Commerce Department will hand Helion up to $175 million and take equity priced at the startup's $15.5 billion Series G, while Commonwealth Fusion Systems gets less than half. The money funds the high-voltage power electronics that fusion generators and AI data centers both need.

The United States government became a shareholder in a private fusion startup on Thursday, and it paid the startup's own price. The Commerce Department [signed letters of intent for up to $389 million in CHIPS R&D awards to four companies](https://www.nist.gov/news-events/news/2026/10/department-commerce-announces-letters-intent-4-companies-389-million-rd), taking a minority, non-controlling, non-voting [equity stake in each as a condition](https://theinference.org/article/washington-s-9-9-million-globalfoundries-shares-are-up-29-and-the-exit-is-already-drafted) [1][4]. [Helion](https://theinference.org/markets/companies/helion), the Washington-state fusion company chaired by [OpenAI](https://theinference.org/markets/companies/openai)'s [Sam Altman](https://theinference.org/markets/people/sam-altman), takes the largest slice: up to $175 million, with $50 million of companion private investment on top [2].

## Washington is paying Helion's private price

The fine print is the story. To enhance the return for the taxpayer, Commerce would receive a $175 million non-voting interest in Helion based on its most recent Series G preferred stock valuation [2]. That Series G, [closed over the summer at $500 million raised, valued the company at $15.5 billion](https://theinference.org/article/helion-erases-its-2028-electricity-prediction-as-its-round-closes-at-500m) [3][6].

A federal stake struck at a private-market price is an anchor for every Helion share that trades before an IPO, and the split itself is a mark: $175 million for Helion against $85 million for Commonwealth Fusion Systems is the first outside pricing of the two leading fusion bets against each other [1].

## The money buys a supply chain, not a reactor

Helion [says the high-voltage semiconductors its machines require are currently available only from overseas manufacturers](https://www.tmcnet.com/usubmit/2026/10/22/10468375.htm), which is the constraint this award attacks [2]. Most of the $175 million funds semiconductor R&D and manufacturing in Everett, Washington, with about $80 million going to tooling work with an industry partner in Vermont [2].

The other three awards sit on the same layer: Commonwealth gets chips for plasma heating and diagnostics, Vertical Semiconductor gets $73 million for gallium-nitride power chips meant to demonstrate a 2.5-megawatt AI data center rack, and Sibelco gets $56 million to purify the quartz the chip industry depends on [1]. This is [the 20th award from a $10 billion CHIPS R&D fund](https://www.msn.com/en-us/money/economy/us-to-award-389-million-in-r-d-funds-for-power-semiconductors-critical-materials/ar-AA2fPzfs) that has already made 19 grants [7].

*Chart: **Helion's CHIPS award is twice the size of its fusion rival's** Bar chart comparing the four CHIPS R&D letter-of-intent values: Helion $175 million, Commonwealth Fusion Systems $85 million, Vertical Semiconductor $73 million, Sibelco $56 million, with Helion highlighted.*

*Maximum federal R&D award values in the four letters of intent signed October 22, 2026, in millions of US dollars. Source: Department of Commerce press release [1]. [1]*

## Fusion and AI data centers need the same switch

Follow the chain one link at a time. Every fusion pulse Helion makes starts and ends in capacitors that soak up energy from the grid for minutes and dump it in a burst, and its Polaris prototype needs just under 10,000 of them to produce 50 megawatts [5]. No vendor could supply that volume, so Helion built its own line, now being configured to turn out about two modules an hour [5].

High-voltage semiconductors are the next link in that chain, and Vertical's award shows who else needs them: computing racks that have to move power efficiently [1]. One component layer, two customers, fusion and AI.

Washington is not buying a reactor. It is buying the part fusion and AI data centers both lack, and it is paying private-market prices to get it.

## The 2028 clock is still the risk

None of this money moves the deadline that matters most: 50 megawatts to [Microsoft](https://theinference.org/markets/companies/microsoft) by 2028, with full capacity that a Helion executive [reportedly said could slip toward 2030](https://www.msn.com/en-us/money/general/helion-funding-round-grows-to-500m-amid-uncertainty-over-fusion-startup-s-microsoft-timeline/ar-AA2cin2q) [6]. Plasma physicists have published work questioning Helion's energy-capture math, which the company answers on its website [6]. And the award's milestones are semiconductor milestones, not fusion milestones [1].

## A price on the bottleneck, none on the physics

Washington is pricing the component layer while leaving the physics risk with Helion and its private backers. That is how a government should buy frontier energy risk: pay for the shared bottleneck, take equity so taxpayers ride the upside, and let the Microsoft deadline sort the believers from the skeptics.

The constraint on AI power is no longer the model or the rack; it is the switch gear between the grid and the load. Washington just put a price on that link. The market should too.

## Takeaway

Commerce's letters of intent put up to $389 million into four companies, price the government's Helion equity at the private $15.5 billion Series G, and fund the high-voltage power semiconductors that fusion generators and AI data centers both need.

## Sources

1. [NIST / Department of Commerce press release, Department of Commerce Announces Letters of Intent With 4 Companies for $389 Million of R&D Awards, 22 October 2026](https://www.nist.gov/news-events/news/2026/10/department-commerce-announces-letters-intent-4-companies-389-million-rd)
2. [Business Wire via TMCnet, Helion Signs Letter of Intent for $175 Million CHIPS Award to Advance U.S. High Voltage Semiconductor R&D to Support Fusion Energy, 22 October 2026](https://www.tmcnet.com/usubmit/2026/10/22/10468375.htm)
3. [TechTimes, Helion Raises $465 Million at $15.5 Billion as Sam Altman's Fusion Bet Races by 2028 to Power Microsoft, 8 June 2026](https://www.techtimes.com/articles/318030/20260608/helion-raises-465-million-155-billion-sam-altmans-fusion-bet-races-2028-power-microsoft.htm)
4. [Seeking Alpha, US to take stakes in four companies receiving up to $389M in chip R&D awards, 22 October 2026](https://seekingalpha.com/news/4655947-us-to-take-stakes-in-four-companies-receiving-up-to-389m-in-chip-rd-awards)
5. [Everett Post, Helion Energy will build key component in-house for fusion future, 19 October 2026](https://www.everettpost.com/local-news/helion-energy-will-build-key-component-in-house-for-fusion-future/)
6. [GeekWire via MSN, Helion funding round grows to $500M amid uncertainty over fusion startup's Microsoft timeline, 15 September 2026](https://www.msn.com/en-us/money/general/helion-funding-round-grows-to-500m-amid-uncertainty-over-fusion-startup-s-microsoft-timeline/ar-AA2cin2q)
7. [Reuters via MSN, US to award $389 million in R&D funds for power semiconductors, critical materials, 22 October 2026](https://www.msn.com/en-us/money/economy/us-to-award-389-million-in-r-d-funds-for-power-semiconductors-critical-materials/ar-AA2fPzfs)


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Commerce takes equity in Helion at its $15.5 billion Series G value, plus up to $175 million for chip R&D — The Inference. Canonical: https://theinference.org/article/commerce-takes-equity-in-helion-at-its-15-5-billion-series-g-value-plus-up-to-175-million-for-chip-r-d