September 9, 2025

Nucleation Capital Backs Nuclearn in $10.5M Series A Round

Nuclearn founders Enhanced

Nucleation Capital is proud to announce its participation in NuclearN's second round of financing, its Series A, in which the company raised $10.5 million to accelerate the development a range of AI services aimed at the nuclear industry. This marks our second investment in NuclearN following our participation in their Seed round back in mid-2023.

The round was led by Blue Bear Capital, with participation from SJF Ventures and follow-on investments from existing investors AZ-VC and Nucleation Capital. The new funding will be used to advance development of Nuclearn's domain-specific AI solutions, increasing their offerings with new analytic and AI features that support operations, engineering, and regulatory compliance and accelerating market expansion.

NuclearN's solutions are already deployed in more than 65 reactors globally and the company is already profitable. This funding will therefore serve as a shot in the arm to accelerate the company's growth, just as AI is driving unprecedents demand for energy and existing nuclear power plants are being uprated, being restarted and being built. Nuclearn can help each plant improve its operational and capital cost bottom line and there is no end in sight to the benefits that may be realized through NuclearN's combination of nuclear operations data analytics and AI-optimizations.

Nuclearn's platform combines advanced AI with deep nuclear domain knowledge to automate complex workflows that typically require weeks of specialized personnel effort and support technicians in the field. Developed by founders with over 30 years of combined nuclear operations experience and trained on millions of specialized nuclear industry documents and diagrams, the technology understands not only what nuclear professionals need, but also the regulatory and safety context behind every decision. "We are extremely proud and pleased to continue to support this talented team and participate in the incredible work being done by NuclearN to improve nuclear power's safety, up-time performance and bottom line," said Valerie Gardner, Nucleation's managing partner.

August 20, 2025

Nucleation Capital Backs Aalo in $100M Series B Round

Aalo-refined

Nucleation Capital is proud to back Aalo Atomics once again, participating in their $100 million Series B round. This marks our second investment in Aalo, following our participation in their Series A in Q3 2024 and now again in Q3 2025.

The Series B was led by Valor Equity Partners, with participation from new and existing investors including Nucleation Capital, Fine Structure Ventures, Hitachi Ventures, NRG Energy, and others.

Nucleation is honored to be able to continue supporting Aalo as they accelerate towards commercialization as part of the DOE’s pilot licensing program. And we’re pleased to be able to provide more accredited investors access to exciting ventures innovating the future of energy like Aalo. If you wish to participate in Aalo, you may still do so with a subscription to Nucleation’s Fund I starting in Q3-2025. Learn more here.

May 8, 2025

Canadian Utility Approves First Advanced Nuclear Build Project ()

GE Vernova Hitachi Nuclear Energy (GVH) announced today approval from the Province of Ontario and Ontario Power Generation (OPG) to proceed with deployment of the first small modular reactor (SMR) in the Western world at the Darlington nuclear site in Ontario, Canada. This milestone marks a significant step forward in advancing nuclear innovation and reinforces GVH’s leadership position in scaling SMRs commercially.

November 1, 2024

Assessing the Election’s Impacts on Nuclear

By Valerie Gardner, Nucleation Capital Managing Partner

Kh v dt.png

Presidential elections are always important and this year's election is widely considered particularly critical and unusual.  There are vast differences of opinion on matters of great national importance—from voting rights and health policies to international relations and national security policies. Less well litigated is where these candidates stand on matters of energy security, the energy transition and future deployments of both traditional and advanced nuclear power. How will the differences in character, knowledge and respect for facts, science and experts play out on U.S. policies towards nuclear power?  Based upon various sources, it appears that the election will have a significant impact. For those still making up their minds, this summary assessment may help clarify how numerous pundits view these differences.

Summary

Nuclear energy has enjoyed enduring bipartisan support across both Democratic and Republican administrations for years now. The Congress has passed, with overwhelming bipartisan majorities, bills aimed at modernizing and accelerating commercialization of new nuclear.

Nevertheless, in 2024, the two presidential candidates bring potentially unconventional approaches that may differ from the standard positions of their respective parties. Republicans have long valued America's nuclear capacity and have seen the need for the US to maintain leadership to boost both national security and to expand our ability to export our technologies. They recognize that the U.S. needs to counter the geopolitical influence of adversaries like Russia and China which are offering to help developing nations with nuclear power as a means of increasing their influence within those countries.

Democrats have also, if more recently, come around to support nuclear. Both the Obama White House and the Biden Administration have provided broad support for the industry and particularly for the acceleration of next-generation nuclear technologies and American leadership in the energy transition. Front and center of their support is the recognition that nuclear power is a critical, differentiated component of a reliable, 24/7 low-carbon energy grid. They support its expansion primarily as a mechanism to meet growing energy needs and fortify grid reliability while reducing carbon emissions and addressing climate change, in tandem with renewables.

The question then of which candidate is more likely to support the continued acceleration of nuclear power is thus wrapped up with policies relating to energy security, fossil fuels, geopolitical competition with Russia and China, and support for addressing climate change. The Inflation Reduction Act passed in 2022 and signed by President Biden marked the Congress' single largest investment in the economy, energy security and climate change and is widely seen as the most important piece of climate legislation ever passed. It simultaneously rebuilds the U.S. industrial capabilities while incentivizing the growth of clean energy technologies including domestic nuclear power. It is already making an enormous and beneficial impact on the U.S. nuclear indsutry.

Kamala Harris, while possibly more progressive than Biden, has shown her support for Biden's approach to incentivizing the clean energy transition through the IRA, Biden's signature piece of climate legislation, which has received staunch support from industry. She is unlikely to make many if any changes to the IRA's clean energy technology-neutral Investment Tax Credits and Production Tax Credits or reduce the billions in loan guarantees available through the Loan Program Office, which have already stimulated significant investment in protecting and restarting existing reactors.

Because of Biden’s Infrastructure Investment & Jobs Act’s Civil Nuclear Credit program, California is proceeding with the relicensing of Diablo Canyon, Holtec has chosen to restart, rather than decommission, Michigan’s Palisades nuclear power plant, Constellation has inked a deal with Microsoft to restart Three Mile Island Unit 2, and NextEra Energy is actively considering the restart of Duane Arnold. Meanwhile, Google has signed a deal to buy power from advanced nuclear reactors being designed by Kairos Power and Amazon has signed a similar deal with X-energy, marking the first corporate purchases of next-generation nuclear, thanks to highly motivating tax and financing incentives available through the IRA and LPO.

Harris is clearly committed to addressing climate change. There is no evidence that she rejects the clean energy tech-agnostic approach developed during her term as Vice President, which levels the playing field for nuclear energy as a clean energy source. Harris recognizes the geopolitical importance of America's ability to compete with Russia to produce our own nuclear fuel supply and to provide nuclear technologies to developing nations seeking to build their clean energy capacity but wanting to remain free of Russian or Chinese influence.

In contrast, Donald Trump has repeatedly called climate change a "hoax," and/or a good thing and cares little about reducing U.S. or global emissions. He previously walked away from the Paris accord and would likely try to repeal, roll back or dilute the IRA. He's publicly allied himself with the fossil fuel industry and—in exchange for donations—has promised to roll back EPA regulations and help them "drill, drill, drill."

There is almost no doubt that Trump would step the U.S. away from its leadership role on climate and this time, that may mean reversing the U.S.'s pledge to triple the amount of nuclear power. This would seriously undermine both the U.S. nuclear industry's momentum to expand to meet growing demand as well as international progress. Given Trump’s overt courting of Putin, he may be disinclined to rebuild the U.S.'s nuclear fuel production capacity or seek to accelerate or support American efforts to build nuclear projects internationally in competition with Russia.

None of this would be good for nuclear power. Any potential efforts to rollback the IRA would slow restoration, development and deployment of reactors. Boosting the fossil fuel industry, whether through supporting expanded access to federal land or price manipulation to improve profitability would have severe impacts on the energy transition. Trump's recent acknowledgement that he didn't believe nuclear was safe also belies the stated "commitment" to nuclear energy expressed by his surrogates and gives considerable fodder to those who persist in opposing nuclear. His shoot-from-the-hip, truth-be-damned leadership style and embrace of conspiracy theorists, contrasts starkly with Harris' stated willingness to consult with scientific experts and even give those who disagree with her a seat at the table.

In sumary, Trump's likely propensity to undermine the IRA, oppose climate action and backtrack on US pledges to triple nuclear, his support for expanding fossil fuel production and his continued disdain for science and technical experts, poses extreme risks to the momentum generated within the nuclear sector over the last few years. Trump's ignorance of nuclear energy's exceptional safety performance make him unlikely to provide Oval Office leadership either to the industry or the NRC in support of the bipartisan ADVANCE Act, signed into law by Biden.

In contrast, a Harris Administration would likely remain on the current climate glideslope for leadership, technology-neutral funding and the U.S.'s nuclear tripling momentum as stimulated by the Biden Administration. It may be that a Harris Administration does not prioritize nuclear's growth or add billions in new accelerants as Biden has done, but she will not try to trash it. Having been briefed by senior energy advisors over the last four years about the importance of nuclear, she is well-informed and understands the importance of Biden's initiatives for addressing climate.

Based on this analysis, those who support an expansion of nuclear power and enduring progress towards transitioning away from fossil fuels should thus prefer to see Harris elected, rather than Trump, and the existing policies continued.

Sources

You can find more detailed information about the basis for this Summary Assessment from these sources.

  1. Forbes, Trump Plans To Rescind Funds For IRA Law’s Climate Provisions, But May Keep Drug Price Measures, by Joshua P. Cohen, Sept. 9, 2024.
  2. Bloomberg, US Economy Will Suffer If IRA Repealed, Solar Maker CEO Says, by Mark Chediak, Oct. 22, 2024.
  3. Politico E&E News, Trump cites cost and risks of building more nuclear plants, by Nico Portuondo, Francisco "A.J." Camacho, Oct. 29, 2024.
  4.  Huffington Post, Donald Trump Takes A Skeptical View Of Nuclear Energy On Joe Rogan’s Podcast, by Alexander Kaufman, Oct. 27, 2024
  5. Bloomberg, Trump 2.0 Climate Tipping Points: A guide to what a second Trump White House can—and can't—do to the American effort to slow global warming, by Jennifer A. Dlouhy, Sept. 30, 2024.
  6. Joint Economic Committee, How Project 2025's Health, Education, and Climate Policies Hurt Americans, August 2024.
  7. FactCheck.org, Trump Clings to Inaccurate Climate Change Talking Points, Jessica McDonald, Sept. 9, 2024.
  8. New York Times, Trump Will Withdraw U.S. From Paris Climate Agreement, Michael D. Shear, June 1, 2017
  9. Cipher: Here's how cleantech stacks up in three swing states: Taking stock of Michigan, Pennsylvania and Wisconsin, Sept. 3, 2024.
  10. Bloomberg Green, Climate Politics: Double-Punch Storms Thrust Climate Into the US Presidential Race, by Zahra Hirji, Oct. 11, 2024.
  11. New York Times, Biden’s Climate Plans Are Stunted After Dejected Experts Fled Trump, by Coral DavenportLisa Friedman and Christopher Flavelle, published Aug. 1, 2021, updated Sept. 20, 2021
  12. Bloomberg, The Donald Trump Interview Transcript (with quote "Green New Scam"), July 16, 2024.
  13. Google: New nuclear clean energy agreement with Kairos Power, by Michael Terrell, Oct. 15, 2024, and Google's The Corporate Role in Accelerating Advanced Clean Electricity Technologies, Sept. 2023.
  14. The New Republic, Trump Pushes Deranged Idea that Climate Change is Good for Real Estate, by Robert McCoy, Sept. 18, 2024.
  15. Grid Brief: What Was Said About Energy During the VP Debate, JD Vance and Tim Walz Discuss Energy and Climate During VP Debate, by Jeff Luse, Oct. 2, 2024.
  16. CNN: Fact check: Sea levels are already rising faster per year than Trump claims they might rise over "next 497 years', by Daniel Dale, June 29, 2024.
  17. CNN: Fact check: Tramp's latest false climate figure is off by more than 1,000 times, by Daniel Dale, April 2023.
  18. Yale Program on Climate Change Communication, YPCCC's Resources on Climate in the 2024 U.S. General Election, by Anthony Leiserowitz, Edward Maibach, Jennifer Carman, Jennifer Marlon, John Kotcher, Seth Rosenthal and Joshua Low, Oct. 8, 2024.
  19. SIGNED: Bipartisan ADVANCE Act to Boost Nuclear Energy Now Law, Senate Committee on Environment & Public Works, July 9, 2024.
  20. Rodgers, Pallone, Carper, Capito Celebrate Signing of Bipartisan Nuclear Energy Bill, the ADVANCE Act, July 9, 2024.
  21. The White House, Bill Signed S. 870, July 9, 2024.
  22. Power Magazine, The ADVANCE Act—Legislation Crucial for a U.S. Nuclear Renaissance—Clears Congress. Here's a Detailed Breakdown by Sonal Patel, June 20, 2024
  23. Sidley Austin LLP, Congress Passes ADVANCE Act to Facilitate U.S. Development of Advanced Nuclear Reactors, June 26, 2024.

October 26, 2024

Nucleation’s Three Year Overview

Nc 3 yr overview image.png

Nucleation Capital Completes its Third Year!

Issues a report on the growing demand, the status of Nucleation Fund I, plans for Fund II and portfolio updates

Nucleation issued its Three Year Report to all Limited Partners (LPs) of the fund in mid-October, following the completion of three full years of investing at the end of Q2-2024.

The report covered the state of the current market, with the recent slate of high-profile power purchase announcements, a review of recent major nuclear purchase announcements by major technology companies, as well as a run-down of key events of the prior three years heralding the current inflection point in the market. Additionally, Nucleation provided its assessment of what is coming down the pipeline for investors in both energy and carbon management demand.

The report further shared more details about Nucleation's plans and strategies for its three year-old evergreen Fund I and for its upcoming, traditional Fund II. Lastly, Nucleation provided detailed and confidential updates on the progress made and current status of each of its twelve Fund I portfolio ventures.

REQUEST A COPY

If you are interested in learning more about either Fund I, our low-cost evergreen fund, now in its fourth year, or our upcoming traditional Fund II, click here to request a copy of our Three Year Report Overview.

October 18, 2024

Amazon goes nuclear . . . !


Amazon has announced a signed agreement with Dominion Energy in Virginia to explore the development and construction of one or more small modular nuclear reactors to use to provide clean power to Amazon Web Services data centers. It is anticipated that Dominion will contract with X-energy to host X-energy's new high-temperature gas reactor at Dominion’s North Anna nuclear power station. This is intended to increase access to clean power for AWS, Amazon’s cloud computing subsidiary, which has escalating energy needs as it expands its services into generative AI. The agreement is also a part of Amazon’s path to net-zero carbon emissions.

Amazon Web Services has agreed to invest more than $500 million into advanced nuclear power, through three related projects, that will result in as much as 600 MW of new power generation at locations from Virginia to Washington state. In the process, Amazon is partnering with Dominion Energy, Energy Northwest and X-Energy to explore the development of an X-energy small modular nuclear reactor, or SMR, near Dominion’s existing North Anna nuclear power station.

Amazon, together with Energy Northwest, a consortium of 29 public utility districts and municipalities across Washington, will help fund the deployment of four reactors developed by X-energy totalling approximately 320 MW of new electricity generation. Additionally, Amazon also is making an equity investment into X-energy as part of an approximately $500 million fundraising round announced today by the nuclear technology company and they've signed a separate memorandum of understanding (MOU) with Dominion Energy “to explore innovative new development structures that would help advance potential [SMR] nuclear development in Virginia.”

[Read more at the sources listed below.]

Sources

UtilityDive: Amazon announces small modular reactor deals with Dominion, X-energy, Energy Northwest, by Brian Martucci, Oct. 16, 2024

CNBC: Amazon goes nuclear, to invest more than $500 million to develop small modular reactors, by Diana Olick, Oct. 16, 2024.

PR Newswire: Dominion Energy and Amazon to explore advancement of Small Modular Reactor (SMR) nuclear development in Virginia, Oct. 16, 2024.

October 15, 2024

Google makes world’s first SMR corporate purchase deal


Google's agreement to purchase energy from advanced nuclear reactors to be built by Kairos Power was, in almost every way, earth-shattering.  This deal puts advanced nuclear on the energy "leaderboard" for the first time and sends an exceptionally powerful message out into the world—that the tech hyperscalers, a group of extremely sophisticated companies committed to decarbonization—are ready to commit large sums to obtain clean and reliable power from advanced nuclear energy providers. This will inform a whole host of other actors and force them to re-assess their energy options.

To better understand Google's reasoning for this agreement, we turn to the blog post written by Michael Terrell, Googles' Senior Director for Energy and Climate. He confirms right away, that Google's decision to sign the "world's first corporate agreement to purchase nuclear energy from multiple small modular reactors" is intended to "accelerate the clean energy transition across the U.S."

Google is building upon a history of pioneering corporate efforts to accelerate clean energy solutions, which started with agreements to purchase renewable electricity over a decade ago. Those purchase agreements have enabled Google to make claims of powering their operations with "renewable" energy but the reality is that for the last decade, Google's power was pulled from the grid like everyone else's and they could not access carbon-free power on a 24/7 basis. This disturbed them, because they knew that their claims were premised on fancy accounting, not reality, and due to the fungibility of electrons, their actual energy streams remained as dirty as eveyone else's.

Google now takes its first true step into truly managing its carbon emissions with this agreement to support Kairos Power's introduction of its advanced nuclear power system.  This is a long-term agreement that enables Kairos to target building multiple initial units by 2030, followed by additional units by 2035.  The agreement will enable the construction of up to 500 MW of 24/7 carbon-free power to a number of communities, which indicates that Google is probably planning to site these new reactors in more than one location, possibly co-located with newly-built data centers being planned to meet growing power demands from AI.

Terrell believes that this agreement, to put Google's purchasing heft in accelerating deployments of the next generation of advanced clean technologies, is important for two reasons:

  1. The grid needs new electricity sources to support AI technologies that are powering major scientific advances, improving services for businesses and customers, and driving national competitiveness and economic growth. This agreement helps accelerate a new technology to meet energy needs cleanly and reliably, and unlock the full potential of AI for everyone.
  2. Nuclear solutions offer a clean, round-the-clock power source that can help us reliably meet electricity demands with carbon-free energy every hour of every day. Advancing these power sources in close partnership with supportive local communities will rapidly drive the decarbonization of electricity grids around the world.

In other words, there is growing 24/7 energy demand and growing urgency to eliminate emissions and renewables are not up to the job. Terrell doesn't say that directly but it seems fairly clear that they recognize that they cannot run a rapidly growing 24/7 data center business with intermittent energy sources, even with fancy accounting.

While we don't get a lot of the financial details of this new agreement, whether they will be investing in Kairos or just helping to finance Kairos' journey through their first of a kind (F.O.A.K) build and out into their "nth of a kind" (N.O.A.K) build, Google's alignment of it efforts to develop and commercialize advanced clean electricity technologies behind Kairos is a formidable combination that promises to help Kairos overcome the remaining barriers for commercialization of its technology.

(From the DOE's Advanced Nuclear LiftOff Report.)

Google's deal with Kairos provides what many experts and the DOE see as a necessary ingredient to break the chicken and egg conundrum:  an orderbook of reactors. This speeds up Kairos' ability to produce its novel reactors in the quantity necessary to lower costs and bring Kairos Power’s technology to market more quickly. Without out, FOAK pricing can be prohibitive to getting orders. Google, with virtually no other options, has bravely stepped to help scale what is likely to be the first of many advanced nuclear technologies coming to market.

This announcement further inflects the advanced nuclear sector and confirms what we have known all along: both traditional and next-generation nuclear technologies are necessary for us to reach 100% clean power and we'll need a very large and very diverse quantity of new reactors being produced and deployed at scale to fully meet all types of growing energy needs and to shift all demand from fossil fuels to clean energy sources.

Resources
_______________

Goggle Blog: New nuclear clean energy agreement with Kairos Power, by Michael Terrell, Oct. 14, 2024

Google Sustainability Report: The Corporate Role in Accelerating Advanced Clean Electricity Technologies, Sept. 2023.

Department of Energy:  Pathways to Commercial Liftoff: Advanced Nuclear Commercial LiftOff

August 23, 2024

Help us expand our deal syndications

Atomic brilliance 2 1536x928

Nucleation Capital is growing!

Seeking help increasing our syndicate deal flow

The level of activity and new venture formation in the areas of advanced nuclear and deep decarbonization innovation is growing rapidly.  Nucleation Capital is seeking to expand our reach and connect with as many of these new ventures as we can. We are thus pleased to invite you to work with us to help us expand our syndicate deal flow and earn a share of our upside syndicate compensation.  Here's how it works.

You find and connect with a young, growing venture that fits our thesis. If this venture is actively looking to raise capital and has a fundraising pitch deck, you introduce them to us and we will review their deck. If we agree that it is a promising prospect, you can offer to help them raise capital through our pronuclear investor network and syndicate. If they like that idea and agree to give us an allocation of equity, you will then produce a deal memo and we will float a syndicate to help them raise capital.

When investors agree to participate in the syndicate, they pay no management fee but they agree to pay carried interest to the deal sponsor, which is Nucleation Capital. Depending upon your contribution to creating the deal memo and promoting the SPV, we will provide a fair split of the carried interest fee earned from the successful exit of this venture.

There are two ways that you can work with us to bring us potential deals and earn participation on the success of the ventures you bring:

1. Venture Associate: If you are a young professional keen to learn how to help ventures raise capital with some spare time to devote to meeting new teams and making introductions, we will bring you on as a Venture Associate.  You'll get training, guidance on how to find and connect with new ventures, and invitations to participate in due diligence sessions as well as other opportunities to enage with our syndicate team. We'll help you build your skills in this area and show you how to evaluate new ventures.

2. Ventury Ally: Perhaps you are a bit too busy to take on the task of writing deal memos but you are well connected, want to help worthy ventures raise capital and would like to make introductions. We invite you to join our team as a Venture Ally and we will delegate syndicate prep tasks to another member of our team. We would welcome your help connecting us to new teams working in our sectors through simple introductions.

This is an incredible opportunity for those keen to learn the ins and outs of the venture capital industry and for those who are deeply connected into the start-up world to help to help build stronger ventures.

Learn more here about this opportunity to join Nucleation's syndication team.

© 2026 Nucleation Capital | Terms & Policies

linkedin, for social media footer
X-logo, for social media footer
Nucleation transparent