February 14, 2026

Pronuclear Advocates & Allies

About the Pronuclear Climate Movement

Pronuclear climate advocacy has been around for only about a decade but it has grown rapidly. It consists mostly of young people who understand the urgency of the climate crisis and recognize that nuclear energy is a way to help us transition away from fossil fuels. They believe we should protect existing nuclear plants providing large amounts of clean energy and build more.  They have worked to save plants slated for premature closure, like Diablo Canyon in California and Palisades in Michigan. And they continue to work to save existing nuclear plants around the world, reform clean energy policies that exclude nuclear and favor renewables and educate the public about the benefits of nuclear. This is a reflection of growing support for nuclear power in general and a recognition that the goal of the climate movement is to prioritize retirenent of fossil fuel plants—whose massive volume of waste emissions is forcing the warming of our planet—not shut nuclear, whose waste hurts no one and is actually a valuable future energy resource.

The pronuclear movement consists of mostly smaller, independent groups that do grassroots organizing around a theme, such as working to prevent the closure of a local nuclear power plant. Fortunately, many of these groups are interconnected yielding suprisingly effective coordination when it matters. Many also have broader goals, such as the Climate Coalition, which aims to strengthen the climate movement overall by uniting climate activists of all stripes in support of an "all-of-the-above" nuclear-inclusive approach to clean energy. These groups can use your help.

How to Support the Pronuclear Climate Movement

For those who want to support nuclear power in addition to (or in lieu of) investing in next-generation technologies through Nucleation Capital, we provide the following recommendations:

  1. Take Action in Support of Nuclear Power: We have launched a Pronuclear Advocacy Actions page. Please check this page to learn about ways that you can support pronuclear actions. If you are organizing an action in support or nuclear or know of one, please submit the information to add it to our action page.
  2. Stop Supporting Anti-Nuclear Organization: Stop sending donations to the Sierra Club, NRDC, 350.org, Friends of the Earth, League of Conservation Voters, or Greenpeace. These large NGOs remain staunchly anti-nuclear and that is primarily what is dividing the climate movement.
  3. Urge your NGO to Prioritize Climate: If you have been a member or supporter of an anti-nuclear environmental group, let them know you don't support their anti-nuclear positions—which are contrary to their supposed efforts to solve climate—and won't support them until they acknowledge the value of nuclear energy for combating carbon emissions.
  4. Actively Support Pronuclear Groups:  Throw your support behind one or more of the pronuclear nonprofits that are working hard to save existing power plants and to advocate for nuclear power. We have curated the following lists to help you find organizations or individuals to support.

Nucleation's Top 5 Pronuclear Organizations

1. CALIFORNIANS FOR GREEN NUCLEAR POWER

Californians for Green Nuclear Power, led by Dr. Gene Nelson, has  been a driving force for political accountability and responsible energy decision-making in California. Shedding light on sweetheart backroom political deals being cut by Governor Jerry Brown that were contrary to the public interest, CGNP filed suits and/or petitioned to become a party to CPUC and FERC proceedings. CGNP's work as an intervenor has been instrumental in helping to save Diablo Canyon. CGNP's in depth research continues to pose obstacles to efforts to overturn the California legislature's extension approval are being filed. (Donations can be mailed to CGNP at 1375 East Grand Ave Ste 103 #523, Arroyo Grande, CA 93420-2421.)

2. MOTHERS FOR NUCLEAR

Mothers for Nuclear was created on Earth Day 2016 by the power team of San Luis Obispo-based Heather Hoff and Kristin Zaitz, two moms to better represent the voices of women and mothers in support of Diablo Canyon and nuclear energy in general. Coordination with Californians for Green Nuclear Power, Save Clean Energy and many other groups enabled Governor Newsom to respond to strong public pressure to save Diablo Canyon when appealing to the California Legislature. Progressive women remain predominantly opposed to nuclear power, but Mothers for Nuclear have begun to rebuild the social norm of women being pronuclear. (Donations can be made online. EIN: 81-3349003)

3. GENERATION ATOMIC

Generation Atomic was created by Eric Meyers to represent the voices of younger generations and empower them to express support for nuclear in every type of venue and forum where discussions of how solve climate change is happening. The group creates fun, engaging, public actions in an effort to safeguard our future by championing the cause for nuclear energy. Not only do they use research, communication and relationship-building to advocate for nuclear, their actions typically involve dancing, singing, inflatable costumes and humor to inspire, empower and engage youth and defang anti-nuclear wrath. Operatic nuclear arias, anyone? (Donations can be made online. EIN: 81-4500446)

4. THORIUM ENERGY ALLIANCE

Thorium Energy Alliance was started in 2006 by John Kutsch to bring together scientists and energy experts who believe that thorium should be recognized as a high-value nuclear fuel and not treated as waste. Thorium is far more abundant and less radioactive than uranium, yet was rejected early on in the development of nuclear fuel. This despite evidence that the use of thorium is feasible and can be highly cost-effective. TEA works to raise awareness about thorium and hosts conferences, posts videos and serves as a central organizing and educational entity for many nuclear advocates, which history was beautifully captured in the Frankie Fenton documentary film "Atomic Hope." (Donations of cash or cars can be made online.)

5. CLIMATE COALITION

Climate Coalition was founded in 2016 by Valerie Gardner and a group of technology-oriented climate activists who recognized how much stronger the climate movement would be if climate advocates were not fighting amongst themselves. Climate Coalition works to build unity between climate activists who support renewables and those that support nuclear, who are often ardently in opposition to each other. This internecine conflict is why global effort to transition to 100% clean energy systems are delayed everywhere. Join Climate Coalition to show your support of unity against carbon emissions. (Climate Coalition is looking for a new leader to take this group to the next level.)


MORE PRONUCLEAR GROUPS

There are many other worthy groups, so we've listed more of them below, followed by influencers, authors, podcasters and artists (alphabetically)

THINK TANKS & EXPERT NON-PROFITS (Alphabetical listing)

Anthropocene Institute, founded by Carl Page, bringing a pro-technology perspective and working to connect engineers, entrepreneurs, investors, institutions and thought-leaders to solve the world's greatest challenges. Helping to expand awareness of solid state nuclear activity and its potential to solve energy issues.

The Breakthrough Institute, Ted Nordhaus leads this global research think tank that identifies and promotes technological solutions and policies to environmental and human development challenges.

Campaign for a Green Nuclear Deal, Madison Hilly founded this group to serve as a nationwide advocate articulating a vision for nuclear power as the industrial heart of sustainable and enduring American prosperity that creates dignified, high-wage jobs, revives American industrial capability, and re-establishes the U.S. as the global leader of this critical technology.

Clean Air Task Force, led by Armond Cohen, analyzes and advocates for the technologies and policies needed to get to a zero-emissions, high-energy planet at an affordable cost, so the energy needs of all people are met efficiently without damaging the air we breathe or the atmosphere.

ClearPath, Rich Powell heads up this a center-right think tank whose mission is to develop and advance conservative policies that accelerate clean energy innovation and climate solutions.

Climate Protection & Restoration Initiative, Dr. James Hansen, Donn J. Viviani and other climate and legal experts, have sued the US EPA to demand its proactive enforcement of the Clean Air Act as already permitted by the existing statute against emitters of carbon dioxide pollution.

Doctors for Nuclear Energy, Dr. Chris Keefer leads an international, volunteer group of doctors that see nuclear energy as an irreplaceable part of the just transition to a low-carbon future.

ecoAmerica, founded and run by Bob Perkowitz, ecoAmerica moves society toward climate solutions by inspiring and empowering trusted national institutions and their millions of stakeholders in local communities across America to visibly act and advocate, with a commitment to Justice, Equity, Diversity, and Inclusion.

Emergency Reactor, Zion Lights, a former Greenpeace activist, grew disenchanted with Greenpeace because of its antinuclear stance and founded this European-based group to provides accurate nuclear education and counterpoint to antinuclear myths.

Energy Communities Alliance (ECA) is the only non-profit, membership organization of local governments adjacent to or impacted by U.S. Department of Energy activities. We bring together local government officials to share information, establish policy positions, and promote community interests to address an increasingly complex set of constituent, environmental, regulatory, and economic development needs.

Energy Impact Center, Bret Kugelmass founded this group to offer strategic direction through a "first principles" analysis of global energy systems and focusing on areas of highest impact, through research, impactful communications and kick-starting real projects. Also, Bret is host and creator of the Titans of Nuclear Podcast.

Fastest Path to Zero, Dr. Todd Allen leads an interdisciplinary team of experts, including University of Michigan faculty, staff, and students, working to support communities as they plan and pursue ambitious climate goals, offering a variety of assessment, siting, reporting, and big data analytic tools combined with a passion for human-centered design and engagement, to help communities transform their energy systems while adapting to a changing climate.

Good Energy Collective, Dr. Jessica Lovering, Suzy Hobbs Baker, Dr. Rachel Slaybaugh launched this group to rethink nuclear policies from the ground up, in order to enable nuclear energy to help humanity reach ambitious climate goals. Using modern, socially-grounded and equitable approaches based upon progressive, democratic values, Good Energy Collective develops practical approaches to bring nuclear implementation and not just technology into the 21st century.

The Long Now, Stewart Brand founded this organization to foster long-term thinking to make mankind into a better ancestor and preserve possibilities for future generations, by imagining what our needs will be over a 10,000 year timescale, rather than just in the here and now.

Nuclear Alternative Project.  Puerto Rico has been an energy deficient country since Hurricane Maria struck a few years back. In response, the Department of Energy has granted the Nuclear Alternative Project the responsibility of preparing Puerto Rico to possibly build advanced nuclear reactors, as an alternative energy option for Puerto Rico. Unlike wind and solar, nuclear power plants hold up well in hurricanes, which show no sign of abating especially as climate gets worse.

Nuclear Innovation Alliance, Judi Greenwald leads this donor-funded think tank and industry-adjacent team that aims to bring economically competitive zero-carbon energy to the world by supporting entrepreneurialism and accelerated innovation through policy analysis, research and education.

Nuclear New York, Dr. Dietmar Detering, Isuru Seneviratne and more, is an independent, non-partisan advocacy organization working towards a prosperous decarbonized future and nature conservation, advocating for the application of nuclear energy to meet the need for reliable, emission-free energy along with well paid meaningful work that underwrites vibrant, healthy, and prosperous communities in New York and beyond.

The Oppenheimer Project, Charles Oppenheimer and family, launched this group in tandem with the release of the film, "Oppenheimer," to use the legacy of J. Robert Oppenheimer to promote thought-leadership, advocate for an expansion of nuclear energy free from the threats of proliferation or weaponization and to invest in the energy transition to carbon-free sources, including nuclear energy.

Radiant Energy Group, a think tank, research organization and corporate advisory founded by Mark Nelson and Richard Ollington, which provides leaders with the data, messaging and broader insights they need to create nuclear-inclusive roadmaps towards decarbonization. Recently published results of their global survey of public attitudes towards nuclear.

Rethinking Nuclear, Richard Steeves and others founded this group to help those taking a fresh look at why we need nuclear power and rethink positions based upon misinformation or misconceptions about the technology that are wrong.

Save Clean Energy, Isabelle Boemeke founded this group to cultivate and amplify the social media-based grassroots movement that she has developed to protect existing clean energy resources, while championing new clean infrastructure.

Stand Up for Nuclear, Paris Ortiz-Wines founded this team to serve as the international hub for global nuclear activism, providing resources, empowering action and helping individuals advocate for the protection and expansion of nuclear energy around the world.

TerraPraxis, Erik Ingersoll and Kirsty Gogan founded this organization to design and promote transformative strategies to address the most significant risks to the energy transition — mapping uncharted decarbonization territory, with a mission to accelerate scalable, innovative and equitable solutions for unsolved areas of the climate and energy challenge. Now focusing on the coal to nuclear transition.

Third Way, Josh Freed heads this national think tank that champions modern center-left ideas on a wide range of critical issues, from energy to agriculture.

WePlanet (previously RePlanet), founded by a group of European youths to broadly save the future and advocate for the prioritization of real, science-based solutions. They bravely tackle a number of big thorny issues, including the need to rethink and deploy advanced technologies for food production, nuclear power and GMOs.


INFLUENCERS, AUTHORS, PODCASTERS, ARTISTS and FILMS

A

B

C

D

  • Dietmar Detering, co-founder and chair of Nuclear New York, a nuclear strategist and expert helping to convene events and build support for nuclear energy.
  • Jack Devanney, author of the Substack: Gordion Knot News, dedicated to solving the twin problems of energy poverty and global warming.

F

  • Frankie Fenton, produced the documentary, Atomic Hope, which follows the birth, pains and growth of the pronuclear movement.

G

H

  • Dr. Robert Hargraves, author of "Thorium, Energy Cheaper than Coal" and prolific tweeter.
  • Kyle Hill, produces a wonderfully accurate and entertaining series of Youtube videos, including "Is Nuclear Power 'Too Expensive?'"
  • Madison Hilly, nuclear influencer and speaker, Managing Director of Radiant Energy Group.
  • Heather Hoff, a co-founder of Mothers for Nuclear, is known to show up to official meetings to speak extremely articulately on behalf of saving nuclear power plants, with her young child in tow.

K

  • Dr. Chris Keefer, articulate Canadian nuclear advocate, founder of Doctors for Nuclear Energy and the Decouple podcast, focused on the challenge of decoupling energy production from carbon emissions.

L

  • D.J. LeClear, The Rad Guy, posts extensively with easy to understand explanations about nuclear power, radiation and waste issues.
  • Zion Lights, Everything is Light, has an engaging Substack covering her learning process about nuclear energy.

N

  • Gene Nelson, Californians for Green Nuclear Energy: Prolific researcher and author of detailed legal analyses, legal briefs and published OpEds submitted on behalf of CGNP as an intervenor in California CPUC actions revealing and critiquing efforts by those seeking to replace clean nuclear energy with dirty coal or gas, of the nefarious going on's—often behind "closed doors" or hidden in data reporting euphemisms—which have enabled efforts by PacifiCorp and others to sell coal power to California without it being acknowledged as such by CAISO.
  • Mark Nelson, Radiant Energy Group: Founder and preferred nuclear advocate in debates on nuclear energy, as well as a key influencer and consultant providing a range of strategic services to improve communications and engage key stakeholders.

O

  • Richard Ollington, Emys Energy: Experienced nuclear energy researcher and statistician providing strategic advice, research and data insights to turn "numbers into narratives" that help the world better understand the power and benefits of nuclear energy, to support informed decisions and lasting progress across the energy sector.

P

  • Carl Page, Anthropocene Institute: Articulate nuclear advocate, philanthropist and investor bringing a pro-technology perspective and working to connect engineers, entrepreneurs, investors, institutions and thought-leaders to solve the world's greatest challenges, including support for development of low energy nuclear reactors (LENR).
  • Emmet Penney, Nuclear Barbarians: Articulate nuclear author and podcaster interviewing a range of nuclear experts about the industry, its successes and challenges.

Q

S

  • Dave Schumacher, produced The New Fire, a wonderful documentary about next-generation nuclear and some of the founders who have launched ventures.
  • Michael Seely, nuclear influencer, consultant and founder of AtomicBlender, a consultancy firm specializing in nuclear fuel and technology. Also posts educational videos at YouTube on the AtomicBlender channel.
  • Isuru Seneviratne, co-founder of Nuclear New York, is a data guru who has developed expertise in presenting energy data in a clear and compelling way that helps bring attention to the energy faux pas of those entrusted to do the right thing, specifically NYISO.
  • Oliver Stone, produced Nuclear Now: Time to Look Again, a 2023 documentary, based upon the Joshua Goldstein book, "A Bright Future."
  • Robert Stone, produced the highly influential 2013 documentary, Pandora’s Promise, arguably the first pronuclear documentary ever produced, which has subsequently inspired the pronuclear movement.

T

  • Nick Touran, Ph.D, P.E., What is Nuclear?: A technical  blog that aims to enlighten the public about the capabilities of nuclear energy so that society may embrace it as an improvement in many aspects over current energy sources. Answers many common questions and concerns about nuclear power.

Y

  • Dan Yurman, Neutron Bytes: Publishes posts and provides resources and references regarding advanced nuclear projects, expert resources and published literature about nuclearpower, and advocacy groups.

[Note: This Nuclear Advocacy page is a work in process and is neither comprehensive nor completely up to date (although we endeavor to update it as often as we can). Not included in this list are industry-supported and/or international professional and non-governmental organizations, such as the:

If you have suggestions or corrections, please use our Contact page to provide that information and we will post it.]

Updated: March 4, 2026

February 8, 2026

Capital Markets Embrace Nuclear Energy ()

A recent Hill opinion piece pulls together developments the nuclear industry has discussed for years, outlining how banks, corporate power buyers, federal financing programs, and public markets underpin new nuclear deployment...

December 20, 2025

Radiant Announces $300M+ Series D Raise

Nucleation Capital is pleased to congratulate Radiant Nuclear and share their December 17th announcement of its close of a $300+ Million Series D financing, led by Draper Associates and Boost VC for a combined $100 million check. Many prior Radiant investors are also re-investing including DCVC, Andreessen Horowitz, Founders Fund, Nucleation Capital and others.

Nucleation Capital is participating in this Series D financing, so all current subscribers will gain access to this investment, which marks Nucleation's third investment into Radiant since the company raised its Series A in 2021. Additionally, this will be the first time that Nucleation has invested three times into a venture, which is a reflection of the company's impressive success knocking down milestones towards the design, development, construction, testing and licensing of Kaleidos, the company's 1 MW transportable power generator.

Radiant is among a small handful of advanced nuclear developers that are making rapid strides towards initial builds and testing of novel reactor designs through a combined DOE/NRC licensing approach. As one of just three companies selected for DOME testing of its reactor in the DOE FEED Program back in 2023, Radiant managed to win the #1 testing slot, beating Westinghouse's eVinci for the right to commence testing in 2026, securing what we think could be an early-mover advantage in the race towards full commercial NRC licensing.

This new capital raise, which came together quickly less than a year after the company's Series C, will support the company's DOME testing and scaling of its commercialization efforts, particularly the design and build-out of Radiant's production factory, R-50, being sited in Oak Ridge, Tennessee on an 85-acre parcel of former Manhattan Project land.

Nucleation Capital, whose Fund I is a long-term investor in Radiant, builds boutique portfolios of top ventures innovating within the advanced nuclear and nuclear-adjacent sectors. There is so much demand across every sector for better sources of clean, reliable energy, we believe that there is a huge opportunity for those ventures like Radiant delivering reliable clean power systems that meet the energy needs in specific niches like data centers, remote villages, industrial centers, universities, hospital campuses, marine transport fleets, forward military bases, vehicle charging stations, large towns and urban district heating systems.

Fund I is designed primarily to provide curated and affordablce access for accredited and other high networth investors. Nucleation's Fund II is designed to provide institutional LPs with boutique access to these rarified clean energy sectors, though skewed slightly later stage.

Nucleation's Fund I operates on a quarterly subscription model and accepts new investors (as limited partners or "LPs") on a rolling basis. Investors select the level and term that works for them—from as low as $10,000 to as high as $1 milion per year—and fund on a quarterly basis to receive a pro rata allocation in each of the investments Nucleation makes each quarter. Learn more about participation in Nucleation's Fund I here.

December 20, 2025

Nucleation Capital Participates for a Second Time in Blykalla’s $50M Financing

Nucleation Capital is pleased to congratulate Blykalla on the close of its $50 million financing round in December 2025 and to confirm its participation as a returning investor. The round was co-led by Oklo, Norrsken Launcher, and Armada Investment, with participation from strategic and financial investors including KDDI, Earth Venture Capital, and the co-founders of CoreWeave.

This marks Nucleation Capital’s second investment in Blykalla, following the $7.3 million Series A completed in the spring of 2024, which Nucleation co-led with Norrsken Ventures. Since that time, Blykalla has continued the development of its SEALER lead-cooled reactor while expanding its commercial and partnership activity across Europe and North America.

Over the course of 2025, Blykalla announced a series of partnerships and project-related agreements tied to Nordic deployment of its SEALER reactor, transatlantic cooperation, and the use of nuclear power for data centers.

In February, Blykalla and Norsk Kjernekraft announced a memorandum of understanding to explore the deployment of the SEALER reactor in Scandinavia, followed later by an agreement to pursue an SMR project in Norway’s Svalbard region. In late September 2025, Blykalla announced a major transatlantic partnership with Oklo to collaborate on reactor technology, supply chains, and regulatory coordination. Subsequently, in October 2025, Blykalla announced a landmark partnership with licensed nuclear site host Studsvik and European hyperscaler evroc to evaluate Sweden's first nuclear-powered data centers at the Studsvik site in Nyköping, Sweden. 

The capital from this financing will support continued testing and validation at the Advanced Reactor Testing Site in Oskarshamn, Sweden, further design and engineering work on Blykalla’s first nuclear units, and ongoing commercial and regulatory efforts related to siting and licensing its initial SEALER project.

Nucleation Capital invests in advanced nuclear and nuclear-adjacent companies focused on delivering reliable, zero-carbon energy. Nucleation’s continued participation in Blykalla reflects its long-term view that multiple next-generation reactor designs will be required to meet growing electricity demand from industry, data infrastructure, and other energy-intensive sectors.

December 15, 2025

A Rad Future for Everyone

Nucleation Capital is pleased to be sharing copies of Isabelle Boemeke's wonderful debut book, RAD FUTURE: The Untold Story of Nuclear Electricity and How It Will Save the World. with our investors and broader community.  We hope you will read it, enjoy it, and then give it to your spouse, your siblings, your parents, your children, your colleague, your friend or your neighbor to read. (Rad = Radiant)

Isabelle Boemeke, the author and one of Nucleation's featured Women in Nuclear, has already made an impact on the world of nuclear. She has single-handedly brought today's social media-consuming generation to have a much better understanding of nuclear power via her Tweeting, TikToking and extremely creative videos.  Isabelle has given TED Talks and has become a very sought-after speaker. Importantly, her alter-ego, Isodope, has been able to speak candidly and collegially to the interests and concerns of a generation of young women who may be surprised at how seamlessly Isodope can weave a discussion of nuclear power and the importance of clean energy into a video with make-up tips.

Most importantly, however, Isabelle has aimed her prodigious talents at saving nuclear power plants, including the previously doomed Diable Canyon. Once Isabelle engaged along with her massive fan base, saving Diablo Canyon quickly became the politically-correct thing to do. She organized the pronuclear community into organizing a rally in San Luis Obispo, near the plant and secured extremely positive press. She didn't stop there, however, and organized a letter to Governor Newsom urging him to save Diablo Canyon for the sake of not reversing our climate progress, signed by 88 leading scientists. Her team also flooded the zone with one-on-one meetings with assembly members and gained political support from key constitutents of Diablo Canyon. Together with allies across the California spectrum, Isabelle successfully helped to persuade Governor Newsom to stop the premature closure of the plant, and a bipartisan majority of the California's very progressive state assembly passed legislation to that effect.

The publication of Rad Future is just one of the latest feats from Isabelle. Along with the publication of the book, Isabelle released 3 minute video showcasing her vision of the future on a planet that embraces nuclear power. This video is just a tremendous bit of creativity and we hope everyone can see it. Fortunately, you can still find it on Isabelle's  X/Twitter account or on the Isodope.com website.  It looks like this:

Rad Future Video vision
Please click through to the video slightly down the page and enjoy. Then, you can follow Isabelle's activities as the first pronuclear social media influencer in the following places:

X/Twitter: @Isodope
Instagram: @I_sodope
TikTok: @Isodope

Note: If you are an investor in Nucleation Capital's Fund I and you don't receive a copy of Isabelle's book this holiday season, please contact us.  If you subscribe before the end of the year, we will forward a copy to you as well.  To learn more about our charitable donations for 2025, please see: "Gratitude in Greens & Blues."

December 11, 2025

Venture Funding Continues to Deepen Across Advanced Nuclear in 2025 ()

2025 has shown strong financing momentum for advanced nuclear, with major rounds across reactor developers, fuel innovators, and back-end solutions, including Nucleation companies like Aalo and Deep Isolation — underscoring widening investor confidence in our sector.

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