Fusion Investing: 6 Proven Layers Every Fund Manager Must Understand Before the 2030s

Fusion investing is not one decision — it is a six-layer stack with six completely different cash clocks, and most fund managers are pouring capital into the one layer that makes them wait the longest.

Ryan Miller BSc., MFin. | Host, Making Billions Podcast | LinkedIn

Key Takeaways

• Fusion investing is not a single-layer opportunity — there are six distinct layers, each with different revenue timelines and risk profiles that fund managers should understand before committing capital.
• China leads the science race, but fusion investing in Chinese assets is currently not possible for U.S. funds because every share of China’s national fusion company belongs to state entities.
• Explore how the three rows America leads in fusion investing — licensed power plants, binding contracts, and private capital — represent the criteria lenders actually use before financing any project.
• Fund managers considering fusion investing should consider the distinction between owning a permission and owning a plant, a structural difference that determines whether a deal has a floor or returns zero on failure.
• Understand why Layer Four of the fusion investing stack — permitted land and grid rights — may generate value regardless of whether fusion technology itself ever reaches commercial operation.

Fusion Investing Starts With a Fact You Were Only Half Told

Fusion investing gained significant public attention in December 2022 when the National Ignition Facility announced it achieved net energy from fusion, but according to Ryan Miller in this episode of Making Billions, that headline was only half the story. The lab put 2.05 megajoules of laser energy into a fuel target and received 3.15 megajoules back, a ratio that is real, peer-reviewed, and a genuine scientific first. Anyone building a fusion investing thesis must understand the difference between what was measured and what was consumed.

What was not on the screen, Miller explains, is what the Government Accountability Office documented in March 2023: operating the lasers required approximately 300 megajoules of electricity to produce 3 megajoules of fusion output. The experiment did not produce more energy than it consumed when measured against utility electricity, and that distinction matters enormously for anyone approaching fusion investing with discipline.

As Miller states in the episode, every valuation in the fusion investing sector, every headline about a race, and every deck that lands on a fund manager’s desk is priced off a thing that has not happened yet anywhere. No fusion machine on Earth has delivered a single net kilowatt hour to any power grid. That is not a reason to stay out of fusion investing, but it is a reason to stay precise about what you are actually buying.

The GAO report referenced in this episode, GAO-23-106422, is a publicly available document that any fund manager serious about fusion investing can pull before their next deal review. Miller’s framing throughout this episode is that sourcing quality in fusion investing must meet the same standard you would apply to any diligence memo.

Fusion Investing Requires Understanding Two Races With Two Different Finish Lines

Fusion investing, according to Miller, is actually two separate competitions with completely different winners, and conflating them is the most expensive mistake a fund manager working in fusion investing can make. China is winning the science race, and by a significant margin — China’s EAST Tokamak held a plasma for 1,066 seconds on January 20th, 2025, and its most advanced tokamak has been under construction since June 2023 with a reported $2.1 billion price tag targeting first plasma in 2027.

America, Miller explains, is winning an entirely different race — the race to become a plant that a bank will finance. Fusion investing at the commercial level does not hinge on physics alone. A plant gets built when four things exist simultaneously: a license, a site with a grid hookup, a buyer under contract, and a party willing to carry construction risk. Not one of those is a physics question, and that reframes everything about the fusion investing thesis.

Miller presents an eight-row scoreboard in this episode, with each row carrying a specific flip trigger — the single event that would move that row from one country’s column to the other. China leads five rows: plasma performance, machines under construction, government funding, workforce development, and supply chain control. America leads three rows: licensed power plants, binding contracts, and private capital. For anyone approaching fusion investing analytically, Miller’s point is clear — look at which three America holds, because those are the three questions a lender asks before financing anything.

The supply chain control row deserves particular attention from anyone engaged in fusion investing. Miller notes that China placed Yttrium and Gadolinium under export license in April 2025 — the rare earth materials used in the tape that makes fusion magnets. Only Russia and China currently produce enriched Lithium-6, the material used to breed fusion fuel, and the United States has not produced it since the 1960s. This is not a headline risk for fusion investing — it is a real transmission channel that hits the cost structure of every American developer on the list.

Understanding what the U.S. Department of Energy’s fusion programs are actually funding and how Congressional appropriations have differed from administration budget requests is essential context for anyone building a fusion investing thesis around policy tailwinds. Miller notes that Congress funded fusion at higher levels than requested two years running — a distinction between underwriting the appropriation versus underwriting the press release.

Fusion Investing and the China Problem Nobody in Finance Is Saying Out Loud

Fusion investing conversations in institutional circles frequently treat China’s scientific lead as a risk factor, but Miller argues in this episode that the actual situation facing fusion investing is more precise and less discussed: there is simply nothing to buy. On July 22nd, 2025, China established a national fusion company in Shanghai — China Fusion Energy Company Limited — with a registered capital of 15 billion yuan, owned entirely by state entities including Kunlun Capital, the Shanghai Future Industries Fund, the National Green Development Fund, China National Nuclear Power, and a provincial power company.

The fusion investing implication is structural, not regulatory. Miller is careful to note that there is no American law currently blocking a U.S. fund from investing in Chinese fusion assets. The Outbound Investment Security Program, codified in Treasury’s final rule of October 28th, 2024, covers semiconductors, artificial intelligence, and quantum computing — fusion is not named. The America First Investment Policy Memo of February 21st, 2025 directs Treasury to consider additional sectors, but nuclear and fusion are not named there either.

The barrier to fusion investing in China is not a ban — it is the absence of a purchasable share. Every economic interest in China’s national fusion program belongs to a state entity, and that means China’s scientific milestones function as pricing inputs for American fusion investing positions, not as investment targets themselves. A record plasma run in Hefei can move the value of what a fund holds in America through sentiment, through policy shifts, and through the cost of magnets and rare earth inputs — but it cannot be the thing a fund holds.

Miller’s framework for fusion investing in a China-aware posture has three operational components. First, stop treating Chinese milestones as a buy signal because there is nothing on the other end of that trade. Second, start treating them as a pricing input on American names that can actually be held. Third, watch the choke points instead of the headlines — if China restricts another input the way it restricted yttrium and gadolinium, that is a real cost transmission channel for every American fusion developer on a fund’s watch list. The Treasury’s Outbound Investment Security Program is publicly accessible for fund managers who want to understand the current regulatory perimeter around fusion investing.

Fusion Investing Across the Six-Layer Stack: Where Capital Is Actually Going and Where Revenue Actually Comes From

Fusion investing is not a single decision — it is a stack with six layers that pay on completely different clocks, and understanding that structure is the foundational discipline Miller builds this entire episode around. Layer One is reactor developers, who sell future electricity and the patents behind it. First cash at best arrives in the early 2030s, making Layer One the longest-dated and most speculative component of any fusion investing thesis.

Layer Two is magnets and superconductors. Companies at this layer sell magnet assemblies to every developer in Layer One and to MRI and grid buyers who have nothing to do with fusion. That is shipping product today, billing today — a distinction that fundamentally changes the cash flow profile of a fusion investing position at this layer. Layer Three is the fuel cycle: tritium, enriched Lithium-6, and breeding blankets — described by Miller as thin and mostly not American.

Layer Four is permitted land and grid rights, and Miller argues in this episode that it may be the most structurally distinctive layer in the entire fusion investing stack. A site with a grid hookup gets paid by any large power generator or large power user — a data center, a gas peaker, a battery park — not only a fusion plant. A Berkeley Lab queued interconnection report found that the typical American power project coming online in 2025 waited more than five years to receive its grid connection, and of all capacity that entered the interconnection queue between 2000 and 2020, only 13% ever reached operation and three-quarters was withdrawn. That is what scarcity looks like, and it is one of the most durable structural advantages available to a fusion investing position today.

Layer Five is engineering, parts, and services — vacuum vessels, gyrotrons, power electronics, engineering hours, and build work. Miller notes in this episode that First Light Fusion shut down its own reactor program in March 2025 to sell its amplifier technology instead, describing the shift in its own words as one that would significantly reduce funding requirements while accelerating the path to revenue. A company ran that exact calculation on itself and moved into a different layer — that is a real data point for anyone building a fusion investing framework around layer economics.

Layer Six is public market proxies. As of the episode date, Miller identifies one listed pure play — General Fusion, which listed on July 13th, 2026 — and one announced merger that had not yet closed, involving Trump Media and TAE Technologies, announced December 2025 and targeted for Q4 2026. The observation Miller makes about fusion investing across all six layers is direct: most of the capital being raised flows into Layer One, which is also the layer with the longest wait. Layers Two, Four, and Five are billing today. Layer Four gets paid whether or not fusion ever works. The SEC’s guidance on private placement structures provides foundational context on evaluating investment structures for those building their fusion investing research process.

Fusion Investing Lesson: Own the Permission, Not the Plant

Fusion investing offers a structural lesson that Miller illustrates using a 1976 real estate transaction as its clearest analogy. A 29-year-old developer bought a bankrupt hotel next to Grand Central Station in New York for approximately $10 million, then transferred the building to a New York state agency for $1 and took back a 99-year lease. The state did not pay property tax, and the developer paid rent of roughly $250,000 per year rather than the prior tax bill of approximately $1.4 million per year. According to ProPublica’s January 2020 tally from New York City’s tax office, the taxes never paid over the life of that deal totaled $410 million.

The method Miller extracts from that transaction maps directly onto fusion investing. First, the developer bought the permission, not the asset — the hotel was the delivery mechanism and the tax deal was the actual product. Second, he placed the asset on someone else’s balance sheet while retaining the economics through a lease. Third, he underwrote the approver before the market, going to the state agency before approaching a lender. Fourth, he kept the permission sellable and sold his interest in 1996. Every one of those structural moves has a direct parallel in fusion investing.

Applied to fusion investing today, Miller argues: the grid agreement is the permission; a state health department, not the NRC, was the approver for the first fusion plant licenses in the world; and a signed contract with a buyer who can pay is what makes the entire structure fundable. On June 16th, 2026, Helion Energy received two licenses for a fusion power plant in Malaga, Washington — the first fusion power plant licenses in the world — issued by the Washington State Department of Health, not the Nuclear Regulatory Commission.

The contrast Miller draws between Helion Energy and General Fusion makes the permission-versus-plant distinction concrete for any fund manager evaluating a fusion investing opportunity. Helion raised at a $5.4 billion valuation in January 2025 and reached $15.5 billion by June 2026 — roughly tripling in 16 months. General Fusion laid off at least a quarter of its staff in May 2025 after a $125 million raise fell through, completed a pay-to-play round of $22 million, and went public through a shell company at approximately $1 billion on paper with roughly $150 million in the bank. Same sector, same 18 months, opposite trajectories. The difference, as Miller states, was not the physics — it was whether the company had a binding contract with a named buyer and a regulatory approval already on record. The NRC’s advanced reactor licensing framework is a publicly available reference for fund managers tracking regulatory milestones in fusion investing.

Fusion Investing by Fund Type: How Venture, Private Equity, and Syndicators Should Each Position

Fusion investing looks fundamentally different depending on the fund structure making the allocation, and Miller addresses three distinct postures in this episode. For venture capital funds hunting three to five times their money at 20% per year inside a 10 to 12-year fund life, a Layer One reactor developer whose first real cash arrives in the early 2030s cannot return a 2022 vintage fund. The question for a VC approaching fusion investing shifts from whether fusion will work to two different questions: who leads the next round and at what valuation, and what does the fund own if the technology never works.

That second question is where permissions change the downside in fusion investing. A pure research company that fails returns approximately zero. A company holding a license, a site with a grid right, and real gear has a floor under it — the assets retain value to buyers who have nothing to do with fusion. A February 2026 Pitchbook quote cited in this episode captures the VC posture precisely: a venture investor described fusion investing in Layer One not as underwriting revenue delivery during a fund’s lifetime, but as a bet on fusion euphoria. That is a professional allocator saying the quiet part out loud, and Miller presents it as educational framing rather than a verdict.

For private equity funds targeting double their money at 15% to 25% per year over a five to seven-year hold, Miller’s guidance on fusion investing is direct: do not buy the reactor. That clock does not fit inside a PE fund’s hold period. Buy what sits around it — powered land, grid rights, engineering service contracts, and component suppliers. PE funds hold a tool that venture does not: project finance. A binding contract with a buyer who can pay supports debt that does not chase a fund’s timeline, meaning an asset in fusion investing can start generating returns while the science is still unresolved.

For deal syndicators, fusion investing at Layer Four sits closest to work they already know. Site control, a grid interconnection request in an agreement state, and a licensing path with an established precedent form a package with value to a buyer who does not care which reactor ultimately sits on the site. The syndicator, Miller explains, is not underwriting fusion — they are underwriting the land that any energy generator needs. Understanding how the SEC frames private placement structures is foundational context for any fund manager or syndicator building a fusion investing offering for accredited investors.

Fusion Investing Intelligence: The Four Triggers That Actually Move This Sector

Fusion investing due diligence requires tracking specific public sources rather than responding to press releases, and Miller identifies four concrete watchpoints in this episode. The first is the NRC’s final fusion rule, due at the end of 2027, which should be monitored directly on the federal docket. Regulatory clarity at the federal level will be a structural milestone for fusion investing regardless of which companies ultimately receive licenses.

The second watchpoint for fusion investing is state-level regulatory frameworks. Tennessee’s framework went live in June 2026, and Miller’s guidance is to watch state radiological health divisions rather than Washington for the licensing developments that will actually determine where plants get built and who holds the permissions. The third watchpoint is milestone completions in the Department of Energy’s public-private fusion program — verified technical progress that is published publicly, with staff checking the work before any press release goes out. That is the sourcing standard Miller applies throughout this episode.

The fourth and most operationally significant watchpoint for fusion investing is binding contracts. Four exist as of the episode date — all four are for American power plants. Miller’s framing is precise: when the fifth and sixth binding contracts appear, and whether they are structured with real penalty provisions, that data point tells a fund manager more than any plasma duration record. The starter move Miller recommends for fusion investing research is to pull the eight companies in the DOE’s milestone fusion program, build a one-page tracker with four columns — which state would each build in, does it hold a license today, does it have a binding contract with a named buyer, and what was its last known raise and when — and recognize that every input is publicly available.

The professional-grade move for fusion investing, according to Miller, is to build a standing watch list with an assigned owner, then for every deal write down the exit scenario that does not require the technology to work — and name the buyer. If a fund manager cannot name that buyer, Miller’s conclusion is unambiguous: what exists is not a deal but a hope with a wire transfer attached. Harvard Business Review’s analysis of deep technology investing provides additional context on how institutional investors approach sectors where technical milestones and commercial milestones operate on completely different timelines.

Fusion Investing: Where the Thesis Breaks and What Would Change the Scoreboard

Fusion investing analysis that does not account for its own failure modes is incomplete, and Miller closes this episode by arguing against his own framework across five specific scenarios. The first is that someone delivers early and the cautious framing looks timid in retrospect. Helion Energy’s plant is under construction with a 2028 stated target and a binding contract behind it — if a net electron reaches the grid in 2028, equity holders in that fusion investing position capture a repricing that no supply chain analysis can predict.

The second scenario where the fusion investing thesis gets complicated involves Congressional appropriations diverging from the framework. The current administration has requested less fusion funding two years running, and Congress has provided more both times. A fund manager underwriting a policy tailwind in fusion investing should underwrite the appropriation history, not the press release, because those have moved in opposite directions. The third scenario is that China creates an investable vehicle — if China ever lists a fusion company that a foreign investor can hold or licenses its technology abroad, the access wall Miller describes in this episode gets a door put in it.

The fourth counterargument Miller raises for fusion investing concerns Layer Four specifically. If every fund manager who hears this framework decides that permitted land and grid rights are the safe way to approach fusion investing, the scarcity premium that makes Layer Four attractive gets competed away. Scarcity rent is a temporary condition, not a law of nature, and other market participants can read a scoreboard. The fifth and most foundational risk in fusion investing is simply that no one ever produces net electricity from fusion — every timeline cited in this episode is a stated target, not an achievement.

Miller’s intellectual honesty about where his fusion investing framework can break is itself the methodology he is modeling. A fund manager who cannot articulate the five scenarios in which their thesis fails does not yet have a thesis — they have a narrative, and those are priced differently. The Wall Street Journal’s coverage of private equity and deep technology provides ongoing institutional perspective on how professional allocators approach sectors with long commercialization timelines, making it a useful standing reference for anyone refining a fusion investing position.

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About the Host

Ryan Miller holds a Bachelor of Science and a Master of Finance and has helped over 2,000 people launch and scale investment funds. He is the host of Making Billions, a podcast focused on institutional finance, fund structuring, and capital raising strategy for alternative asset managers. Ryan is also the founder of Fund Raise Capital, a platform built for fund managers and capital raisers working in the $10M to $500M+ range.

Ryan’s work on Making Billions is focused on delivering institutional-grade research and frameworks to fund managers who want to position ahead of major capital flows rather than react to them. He can be found on LinkedIn and at Making-Billions.com.