Media - Deep Fission, Inc

KCUR.org | 12.16.2025

Kansas will get nuclear reactors buried underground. CEO says it’s ‘safe, clean and good’

Last week, Deep Fission broke ground on a pilot program to bury small modular reactors underground in Parsons, Kansas. This project is the first of its kind in the United States, and comes as part of the Trump Administration’s effort to advance the nation’s nuclear power.

The Joplin Globe | 12.14.2025

Deep Fission breaks ground on nuclear project outside Parsons, Kan.

Officials with Deep Fission and the Great Plains Development Authority, owners of the Great Plains Industrial Park, turn dirt during a groundbreaking for Deep Fission’s pilot underground nuclear reactor on Tuesday.

KSL.com | 12.13.2025

California-based energy company planning underground nuclear reactor in Utah

Utah appears poised to become a future location of a California-based energy company’s underground nuclear reactor. Deep Fission in September announced Utah, Texas and Kansas as the first three planned sites for the company’s testing of its small modular pressurized water reactors.

Parsons Sun | 12.12.2025

Deep Fission breaks ground on first-ever borehole reactor in Parsons

Deep Fission breaks ground on first-ever borehole reactor in Parsons. Here is what we know about the project that popped up seemingly overnight.

CNBCEU | 12.09.2025

Deep Fission on CNBCEU Squawk Box Europe

How do you cut the cost of nuclear energy by 80%? Liz Muller, CEO of Deep Fission, tells CNBCEU.

KWCH.com | 12.09.2025

Parsons celebrates as company breaks ground on underground nuclear reactor

The City of Parsons is celebrating a project anticipated to bring the next generation of manufacturers to the Great Plains Industrial Park.

Nuclear Newswire | 12.08.2025

Deep Fission to break ground this week

With about seven months left in the race to bring DOE-authorized test reactors on line by July 4, 2026, via the Reactor Pilot Program, Deep Fission has announced that it will break ground on its associated project on December 9 in Parsons, Kansas. It’s one of many companies in the program that has made significant headway in recent months.

Power Magazine | 12.05.2025

Nuclear Startup Announces Kansas Site for Mile-Deep Reactor Pilot

A California-based nuclear energy company with plans to place small modular reactors (SMRs) in mile-deep boreholes said it will break ground December 9 for a pilot project at a site in Parsons, Kansas.

KSN 16 | 12.05.2025

Deep Fission picks Parsons for DOE-backed nuclear reactor project

Deep Fission Inc. has chosen the Great Plains Industrial Park in Labette County as the site of its federally backed advanced nuclear pilot project.

Interesting Engineering | 12.05.2025

US: Deep Fission to build its first nuclear reactor a mile underground at Kansas site

The technology used by Deep Fission combines standard oil and gas borehole drilling, geothermal technology, and a pressurized water reactor (PWR).

World Nuclear News | 12.05.2025

Kansas site selected for underground reactor demo

California-based startup Deep Fission has chosen Great Plains Industrial Park in Parsons, Kansas, for its pilot project and plans to a build a full-scale commercial plant there following the test reactor demonstration.

KCLY Radio | 12.04.2025

Deep Fission Chooses Great Plains Industrial Park for Landmark Underground Reactor Pilot

Deep Fission, an advanced nuclear energy company that places small modular reactors one mile underground, has chosen the Great Plains Industrial Park in Parsons, Kansas, for its first pilot project. The company will break ground on Tuesday, December 9, and plans to complete construction and start up the reactor by July 4, 2026, if the Department of Energy (DOE) approves the next steps.

KOAM News Now | 12.04.2025

Underground nuclear reactor construction to begin in Parsons

Deep Fission, a company that makes small advanced nuclear reactors, has chosen a location in Parsons, Kansas, to build a test version of its new underground reactor. This is part of a U.S. government program to speed up new nuclear technology. This installation will be Deep Fission’s first demonstration of the Gravity Nuclear Reactor.

WIBW | 12.04.2025

Groundbreaking set for next week on underground nuclear reactor in Parsons

A groundbreaking ceremony is set for next week on an underground nuclear reactor in southeast Kansas, officials said. Deep Fission Inc., based in Berkeley, California, announced Thursday that it has selected the Great Plains Industrial Park in Parsons as the site of its advanced reactor pilot project.

Sunflower State Journal | 12.04.2025

Kansas picked as site for innovative underground nuclear reactor

A California company has picked Kansas as the site for pioneering a novel nuclear reactor that will be built underground in southeast Kansas and is emblematic of a new generation of nuclear power that’s intended to be safer and less expensive to build.

KCUR | 12.04.2025

Kansas will get the world’s first mile-deep nuclear reactor and the groundbreaking is next week

Deep Fission says it plans to install a nuclear reactor underground at an industrial park in southeast Kansas. State and local government leaders are on board. It’s part of a national push for new nuclear energy generation.

Interesting Engineering | 11.24.2025

US firm advances plans to bury nuclear reactor a mile underground for safety

The company says Gravity will operate a mile underground where natural pressure and surrounding rock create a built-in containment system.

Yahoo Finance | 11.22.2025

US startup signs deal to deliver nuclear power to booming industry: ‘It wouldn’t surprise me if people are signing multiple agreements’

A California company developing nuclear power technology has secured nonbinding agreements to deliver 12.5 gigawatts of electricity, which would match what more than 12 standard nuclear reactors produce, Bloomberg reported.

Forbes | 11.21.2025

How AI Is Ushering In A New Nuclear Age

Atomic energy is back, thanks to the ravenous demands of AI, favoritism from Trump, and the zeal of young entrepreneurs raising billions to build mini-reactors. The upside is unlimited.

IEEE | 11.20.2025

Deep Fission Plans to Sink Nuclear Reactors Deep Underground > The company hopes reactors in boreholes will be safer and cheaper

By dropping a nuclear reactor 1.6 kilometers (1 mile) underground, Deep Fission aims to use the weight of a billion tons of rock and water as a natural containment system comparable to concrete domes and cooling towers. With the fission reaction occurring far below the surface, steam can safely circulate in a closed loop to generate power.

KWCH | 10.22.2025

Hutchinson among Kansas communities expressing interest in hosting nuclear plant

Could the state of Kansas start expanding on nuclear energy? TerraPower Co-founded by Bill Gates, and Deep Fission are two companies trying to bring nuclear energy to the state.

OK Energy Today | 10.18.2025

Firm wants to build 1-mile deep nuclear reactor in Kansas

A company with plans to construct small, nuclear reactors 1 mile underground for data centers and other electricity-hungry industries plans to put its first reactors in Kansas, Texas and Utah. Deep Fission, a Berkeley, California company, announced its plans saying its technology will be able to meet the “explosive demand for power from artificial intelligence” and signed letters of intent with undisclosed partners in each of those states.

Data Centre Dynamics | 10.16.2025

SMR developer Deep Fission signs LOIs with data centers and other large loads for 12.5GW of nuclear capacity

Deep Fission, an advanced nuclear energy company, has signed Letters of Intent (LOI) with data centers, co-developers, industrial parks, and strategic partners, totaling 12.5GW of potential capacity.

Bloomberg | 10.15.2025

Nuclear Industry ‘Froth’ Will Fade in Next Year: Deep Fission CEO

Energy firm Deep Fission is aiming to provide 12.5 gigawatts of power for data centers. Amid a deluge of nuclear power investments, CEO and co-founder Liz Muller says “froth” will fade fast as costs and timelines clarify. She spoke with Scarlet Fu on “Bloomberg Markets”.

Bloomberg | 10.15.2025

Nuclear Startup Deep Fission Has 12.5 GW Pipeline, CEO Says

California nuclear energy startup Deep Fission Inc. has signed nonbinding deals with customers, including data center operators, for 12.5 gigawatts of power. That’s the equivalent of more than 12 traditional reactors.

EnerCom Denver | 09.26.2025

EnerCom Interview with Deep Fission CEO Liz Muller

At the 30th annual EnerCom Denver conference, we interviewed Deep Fission CEO Liz Muller. Deep Fission is harnessing three technologies—pressurized water reactor technology, drilling, and geothermal—to solve the nuclear waste problem by storing nuclear waste in a borehole one mile underground. They expect to be able to lower the cost of conventional nuclear power by about 80% and decrease the time from construction start to reactor operations in about six months.

Fox Business | 09.24.2025

Deep Fission CEO Liz Muller’s Appearance on Fox Business “Mornings With Maria”

Deep Fission co-founder and CEO Liz Muller joins ‘Mornings with Maria’ to discuss participating in President Donald Trump’s nuclear reactor pilot program, building their first reactor and the state of American nuclear energy.

NucNet | 09.23.2025

US Startup Deep Fission Selects Texas, Utah, And Kansas for Initial Underground SMR Sites

US-based nuclear startup Deep Fission has announced the selection of its first three planned sites for the co-development of underground nuclear projects in Texas, Utah, and Kansas.

World Nuclear News | 09.19.2025

Three US states in line for Deep Fission’s underground SMRs

Deep Fission, which aims to place small modular reactors in boreholes a mile underground, says it has identified three initial potential project sites – in Texas, Utah and Kansas.

Power Engineering | 09.18.2025

SMR startup Deep Fission eyes Texas, Utah, and Kansas for new reactor projects

Deep Fission, a California-based nuclear startup aiming to place small modular pressurized water reactors in boreholes one mile underground, has announced the selection of its first three planned sites in Texas, Utah, and Kansas.

Power Technology | 09.09.2025

Deep Fission goes public with $30m private placement offering

Nuclear energy company Deep Fission has gone public through a reverse merger transaction with Surfside Acquisition and raised $30m through a private placement offering. As a result of the deal, Surfside Acquisition, a special purpose acquisition company, has merged with the operational company. The new entity will retain the name of Deep Fission.

Bloomberg | 09.08.2025

Deep Fission Raises $30 Million to Develop Underground Nuclear

Deep Fission Inc. raised $30 million in financing to develop a system for installing small nuclear reactors deep underground.

The Economist | 09.03.2025

Burying nuclear reactors might make them cleaner and cheaper

Sometimes an idea is so elegant that it really deserves to work. One such proposal is Elizabeth Muller’s brainwave to build a reactor at the bottom of a mile-deep shaft drilled into Earth’s crust, and then fill the shaft with water. This would, in one fell swoop, minimise the risk of radioactive leaks, dispose of the “hot” waste reactors generate and eliminate much of the paraphernalia that make them expensive to build and run.

Sustainability Times | 06.17.2025

“Bury Them Deep”: Nuclear Reactors Planted One Kilometer Underground Could Deliver Cheap and Ultra-Safe Energy for Decades

Deep Fission, an American startup, has unveiled a groundbreaking approach to nuclear energy by proposing the installation of miniature reactors at the bottom of deep boreholes, promising a safer and more cost-effective power solution.

Rullion Reflections | 06.12.2025

Nuclear Waste Solved in Weeks, Not Decades? Liz Muller Explains

In this episode of Rullion Reflections, we sit down with Liz Muller, CEO and co-founder of Deep Fission, to explore how bold thinking and new technology are transforming one of nuclear energy’s biggest challenges: waste disposal.

Pulse 2.0 | 06.11.2025

Interview With Founder & CEO Elizabeth Muller About The Nuclear Power Company

Deep Fission is a company that is reimagining nuclear power with a bold new approach: placing small modular reactors (SMRs) a mile underground for cheaper, faster, and more scalable deployment. Pulse 2.0 interviewed Deep Fission founder and CEO Elizabeth Muller to learn more about the company.

Fox Business | 06.04.2025

Liz Muller talks with Maria Bartiromo

Liz Muller had the opportunity to speak with Maria Bartiromo on Fox Business about the federal actions and Deep Fission’s long-term vision.

The Business Journals | 06.02.2025

Entrepreneur drills into AI energy demand with second nuclear startup

A Berkeley entrepreneur is drilling down — literally — into the complex problems facing the tech industry’s desire for nuclear energy to power artificial intelligence.

The Cool Down | 05.22.2025

High-tech companies announce quest to bury nuclear reactors a mile underground: ‘Highest levels of safety’

A new nuclear energy technique could soon be running massive data centers that power today’s digital lives with zero carbon emissions and barely a trace on the Earth’s surface. Nuclear energy company Deep Fission and Endeavour, an organization focused on sustainable infrastructure, have partnered for the task.

Wired | 04.29.2025

States and Startups Are Suing the US Nuclear Regulatory Commission

Critics of the NRC say its red tape and lengthy authorization timelines stifle innovation, but handing some of its responsibilities to states could undermine public trust and the industry’s safety record.

Axios | 04.25.2025

Scoop: Deep Fission raising up to $15M for underground reactors

Deep Fission plans to build a reactor above ground, then lower it a mile down a 30-inch borehole. The startup says its approach eliminates the need for costly pressure and containment systems.

Business Insider | 04.22.2025

We’re a father-daughter duo who have built 3 successful businesses. Working together isn’t always easy, but it’s meaningful.

Deep Fission CEO Liz Muller and her 81-year-old father, inventor Rich Muller, shared their secret to building three successful businesses together including: Berkeley Earth, a nonprofit that provides critical climate-science data; Deep Isolation, a nuclear waste disposal company; and Deep Fission, a nuclear energy company burying small modular reactors a mile underground.

Reason | 04.15.2025

Why Nuclear Energy Developers Are Suing Federal Regulators

The lawsuit will hopefully make stringent regulations for nuclear power a relic of the past.

Power Magazine | 04.14.2025

Why We’re Suing the Nuclear Regulatory Commission—and Still Believe in Nuclear Regulation

At Deep Fission, we’re taking a radically different approach to nuclear energy: smaller, safer, faster to deploy—and located a mile underground. By placing reactors deep beneath the Earth’s surface, we use the natural containment of billions of tons of bedrock to dramatically improve safety and cut costs.

Inevitable, an MCJ podcast | 04.10.2025

Nuclear Waste Solved in Weeks, Not Decades? Liz Muller Explains

In this episode of Rullion Reflections, we sit down with Liz Muller, CEO and co-founder of Deep Fission, to explore how bold thinking and new technology are transforming one of nuclear energy’s biggest challenges: waste disposal.

Korea.net | 01.14.2025

Energy Tech University to Help Develop Next-Gen Nuclear Reactors

Korea Institute of Energy Technology (KENTECH) is the nation’s first university to collaborate with a U.S. nuclear power company in technological development. The school on Jan. 13 announced that it signed a memorandum of understanding (MOU) on Jan. 7 on an energy project with Deep Fission, an American startup in nuclear energy.

World Nuclear News | 01.08.2025

Deep Fission and Endeavour announce strategic partnership

California-based nuclear startup company Deep Fission, which is proposing to place microreactors deep underground, and Endeavour Energy LLC have committed to co-develop 2 GW of nuclear energy to power Endeavour’s expanding portfolio of data centres. The first reactors are expected to be operational in 2029.

TechCrunch | 01.07.2025

Nuclear startup Deep Fission plans to bury micro-reactors to power data centers

Deep Fission, a nuclear startup, signed a deal on Tuesday with data center developer Endeavour to build 2 gigawatts’ worth of subterranean nuclear power.

Data Centre Dynamics | 01.07.2025

Deep Fission to supply Endeavour data centers with 2GW of nuclear energy from “mile-deep” SMR

Deep Fission, a small modular nuclear reactor (SMR) developer, has partnered with Endeavour Energy, a US sustainable infrastructure developer, to develop and deploy its technology at scale.

Power Engineering | 01.07.2025

California startup strikes deal with data center customer to deploy underground SMRs

Deep Fission aims to eliminate the need for costly concrete and steel surface containment buildings by placing its reactor a mile underground.

Fox Business | 10.28.2024

Nuclear Fission CEO on placing reactors under billions of tonnes of rock

Deep Fission co-founder and CEO Elizabeth Muller discusses placing nuclear reactors a mile underground on ‘The Claman Countdown.’

ZME Science | 09.13.2024

Why This Startup Wants to Bury Nuclear Reactors a Mile Underground

A new startup thinks an underground reactor could solve nuclear power’s biggest problems.

Techno-Science | 09.12.2024

Burying a nuclear power plant 1 mile deep: this ambitious American project

An American company is proposing an innovative solution: a nuclear reactor buried 1 mile (1.6 kilometer) beneath the earth's surface.

Ignition | 09.12.2024

A Q+A with Liz Muller, CEO of Deep Fission

Serial entrepreneur Liz Muller has a new vision for the nuclear energy sector: putting SMRs deep underground.

The Cool Down | 09.05.2024

US company designs ‘groundbreaking’ subterranean power station with revolutionary nuclear technology: ‘We’ve innovated beyond other reactor designs’

Scientists are working hard to figure out how to produce nuclear energy safely, cheaply, and efficiently.

World Nuclear News | 08.29.2024

Deep Fission unveils underground reactor concept

California-based nuclear startup company Deep Fission, which is proposing to place microreactors deep underground, announced its emergence from stealth mode and a USD4 million pre-seed investment round.

Funding secured for underground microreactor

US-based nuclear start-up Deep Fission has announced its emergence from stealth mode and a $4m pre-seed financing round, led by 8VC.

Data Centre Dynamics | 08.23.2024

Startup raises $4m to build nuclear reactors a mile underground

Elsewhere, could novel limestone pellets be "coal without the consequences"?

Finsmes | 08.23.2024

Deep Fission Raises $4M in Funding

Deep Fission, a Berkeley, CA-based nuclear energy company, raised $4M in funding.

Axios | 08.22.2024

Exclusive: $4 million for Deep Fission’s underground nuclear reactors

Deep Fission raised $4M in funding for underground nuclear reactors.