Valar Atomics is an El Segundo-based nuclear startup founded in 2023 by Isaiah Taylor that develops small, mass-manufacturable high-temperature gas-cooled reactors (TRISO fuel, graphite moderator, helium coolant) intended to be deployed by the hundreds on grid-independent 'gigasites' producing power, hydrogen, and carbon-neutral synthetic fuels.
Latest update Oct 7, 2026
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As one of 11 projects in the DOE Reactor Pilot Program, its 100 kWt Ward250 test reactor at the Utah San Rafael Energy Lab achieved fueled criticality on June 18, 2026 - the first DOE-authorized reactor built and operated outside a national laboratory - then became the first of the pilot reactors to ramp to full power on June 23, and on July 1 generated 100 kW while powering Nvidia Blackwell chips in a live demo. The company and Nvidia are now exploring a 30 MW nearly waterless nuclear-powered AI data center in Orangeville, Utah. On September 18, 2026, Utah's Trust Lands Administration Board unanimously approved a Special Use Lease Agreement covering up to 640 acres of state trust land in Carbon County (starting with a 480-acre, 50-year lease near Wellington and Price), Valar's first named expansion site beyond the Emery County test lab; construction still needs development plans and permits. Valar has raised roughly $1.6B total, after closing a $1B Series B on August 3, 2026 led by Sequoia Capital (Shaun Maguire, who joins the board) that tripled its valuation to $6B, alongside a separate $200M credit facility led by Erebor Bank and J.P. Morgan (with Crescent Cove and Hercules Capital participating); the company says the round funds reactor-manufacturing factories to scale output toward thousands of units a year plus in-house TRISO fuel production, building on its September 2025 selection for DOE's Fuel Line Pilot Program. The round follows a $450M equity-and-debt round at a $2B valuation in March 2026 backed by Palmer Luckey and Palantir CTO Shyam Sankar, a $130M Series A led by Snowpoint Ventures, and a $19M seed led by Riot Ventures. It is also building Ward One, a 100 kW research microreactor in the Philippines with the Philippine Nuclear Research Institute, and is a co-plaintiff (alongside Texas, Utah, Louisiana, Florida, Arizona, Last Energy, and Deep Fission) in a lawsuit seeking to exempt small test reactors from full NRC licensing, stayed until September 29, 2026 for settlement talks. CEO Isaiah Taylor says Valar hopes to start selling power on a test basis in 2027 and become fully commercial in 2028.
etvnews.comUpdated Sep 19, 2026
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2026-2027
Valar says its $1B Series B is earmarked to build reactor-manufacturing factories that scale output from single units toward 'tens, then hundreds, then thousands' of reactors per year, and to stand up in-house TRISO fuel production tied to its DOE Fuel Line Pilot Program selection - vertically integrating the hardware supply chain from deployment through long-term operations and fuel. The first piece of that fuel buildout is already under construction: a co-located Valarin Fuel Fabrication Facility next to Ward250 at the Utah site, intended to manufacture TRISO-coated particle fuel in graphite compacts using German HOBEG-derived technology. On September 18, 2026 Utah Trust Lands approved a Carbon County Special Use Lease covering up to 640 acres (starting at 480 acres for 50 years near Wellington and Price) as Valar's first named expansion site beyond the Emery County test lab; construction still requires development plans and local, state, and federal permits, and no factory opening date has been announced.
H2 2026
Ward250 has begun non-commercial power ascension following its June 2026 criticality and full-power runs; Valar says it will share further test milestones as the campaign progresses through the rest of 2026. A September 10, 2026 community open house at Orangeville confirmed the reactor is still operating, but no new public power milestone had been reported as of September 19, 2026 beyond the July 1 Nvidia Blackwell demonstration.
Q4 2026
The federal suit Valar and Deep Fission joined against the NRC (alongside Texas, Utah, Louisiana, Florida, and Arizona) over small-reactor licensing is stayed until September 29, 2026 - the NRC itself joined the plaintiffs in asking for the extension, filed June 2026 and granted by the Eastern District of Texas on June 30, 2026, so both sides can pursue a settlement that could exempt low-power test reactors from full commercial licensing. No further docket movement had been reported as of September 19, 2026, ten days before the stay expires.
2027
CEO Isaiah Taylor says Valar hopes to start selling power from its reactors on a test basis in 2027, the company's first step from DOE-authorized testing toward commercial revenue - still the stated target as of the August 3, 2026 Series B announcement, which frames the raise as funding the shift 'from demonstrating the operability of an integrated reactor system to producing fleets of them en masse.' Unchanged as of September 19, 2026.
2028
Taylor targets fully commercial operation in 2028, with reactors scaled toward 5 MWe per unit - contingent on NRC licensing or the regulatory relief Valar is pursuing, and on converting the Nvidia data-center exploration into a committed project. The September 18, 2026 Carbon County land agreement is a site step toward that campus model, not a commercial license. Unchanged as of September 19, 2026.
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Valar Atomics closed a $1 billion Series B on August 3, led by Sequoia Capital at a $6 billion post-money valuation, with Sequoia partner Shaun Maguire joining the board. The round included a separate $200 million credit facility led by Erebor Bank and J.P. Morgan, and Valar said the roughly $1.2 billion in combined new financing will fund its shift from demonstrating its small reactor technology to producing reactors at volume for markets including AI data centers.
Nuclear startup Valar Atomics closed a $1 billion Series B on August 3 led by Sequoia Capital's Shaun Maguire, who joins the board, tripling the company's valuation to $6 billion just months after its $2 billion March round. Valar also secured a separate $200 million credit facility, with the new capital earmarked for shifting its Ward250 reactor design from prototype to factory-built, mass-produced small modular reactors.
Nuclear startup Valar Atomics is reportedly in talks to raise roughly $1 billion at about a $6 billion valuation, with Sequoia Capital said to be leading alongside existing backers Palmer Luckey and Shyam Sankar. The mark would triple Valar's $2 billion valuation from its March 2026 round, driven by its Ward250 reactor reaching criticality and full power in June and a subsequent Nvidia data-center partnership announcement.
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A 100 kWt TRISO-fueled, graphite-moderated, helium-cooled high-temperature gas test reactor at the Utah San Rafael Energy Lab - roughly minivan-sized before shielding - built to demonstrate the reactor architecture Valar plans to mass-produce, with the design scalable to 5 MWe per unit.
Valar's commercial concept: industrial campuses hosting hundreds to thousands of mass-produced HTGR units (each scalable to ~5 MWe) generating grid-independent electricity, sulfur-iodine-cycle hydrogen, and synthetic hydrocarbon fuels from captured CO2 for data centers, heavy industry, and transportation.
A 100 kW TRISO-fueled research microreactor being developed in the Philippines with the Philippine Nuclear Research Institute through Valar's local arm VARI (Valar Atomics Research Institute), intended for the University of the Philippines Diliman campus as a standalone, non-grid-connected demonstration unit.
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Tracxn estimate, June 30, 2026, up from ~45 in Nov 2025; the company had 56 open roles listed in July 2026
(incl. $110M debt and a separate $200M credit facility); no new round announced since the August 3, 2026 Series B
(Series B, August 3, 2026), up from $2B in March 2026; no later round announced as of September 19, 2026
first DOE pilot reactor to reach full power (June 23, 2026); no higher-power milestone reported as of September 19, 2026 beyond the July 1 Nvidia demonstration
(AGR compacts), helium-cooled HTGR; 100 kWt initial test power, architecture scalable to 5 MWe per unit (~5,000 homes)
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Operating status
Pre-revenue
Operating the 100 kWt Ward250 test reactor at the Utah San Rafael Energy Lab under DOE (not NRC) authorization - critical since June 18, 2026, at full power since June 23, and generating electricity in demonstrations since July 1. A September 10, 2026 community open house at the Orangeville site confirmed the reactor is still on the test campaign; no newer public power-ascension milestone has been reported as of September 19, 2026 beyond the July 1 Nvidia demonstration. On September 18, 2026 Utah Trust Lands approved a Carbon County lease of up to 640 acres as Valar's first named expansion site, still pending development plans and permits before construction. All revenue is prospective: CEO Isaiah Taylor says Valar hopes to start selling power on a test basis in 2027 and become fully commercial in 2028, which will require NRC licensing (or the regulatory relief it is seeking in court) for commercial generation. The NRC licensing lawsuit remains stayed until September 29, 2026 for settlement talks.
Reactor-direct power for AI data centers. With Nvidia, Valar is exploring a 30 MW nearly waterless data center in Orangeville, Utah, pairing its helium-cooled reactors with Nvidia's DSX closed-loop liquid cooling. Still at the exploratory/feasibility stage as of September 19, 2026, with no firm deal or contract announced.
Synthetic Fuels & Hydrogen (planned)
Carbon-neutral 'drop-in' hydrocarbon fuels made by combining sulfur-iodine-cycle hydrogen (using reactor process heat) with captured CO2 via modified Fischer-Tropsch synthesis at gigasites.
Industrial Power & Heat (planned)
Grid-independent high-temperature process heat and electricity for heavy industry such as green steel and bauxite electrolysis, sold from co-located gigasite campuses. The September 18, 2026 Carbon County Trust Lands lease is the first named land package for that campus model.
Research Reactor Projects (planned)
International research-reactor deployments, starting with Ward One - a 100 kW microreactor being developed with the Philippine Nuclear Research Institute, supported by a P192M grant from EOS Organization to the Philippine Nuclear Science Foundation.
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How past announced dates turned out.
1/1announced date hit on time
Close reported new funding round at $6B valuation
Target 2026 · Resolved Aug 3, 2026
Valar closed a $1B Series B led by Sequoia Capital (Shaun Maguire joining the board) on August 3, 2026 at a $6B valuation, plus a separate $200M credit facility led by Erebor Bank and J.P. Morgan (with Crescent Cove and Hercules Capital also participating) - matching the terms reported in talks two weeks earlier.
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2026
Utah Trust Lands approves Carbon County gigasite lease
On September 18, 2026, the Utah Trust Lands Administration Board unanimously approved a Special Use Lease Agreement (SULA 2095) covering up to 640 acres of state trust land about six miles north of Wellington and six miles east of Price in Carbon County. Valar plans to start with a 480-acre, 50-year lease (two 25-year extension options), paying $400,000 upfront and an estimated $35 million over the term, with an option to buy later; the remaining 160 acres could be added if the Utah National Guard vacates. Construction still requires development plans and local, state, and federal permits. The site is Valar's first named expansion beyond the Ward250 test reactor at the Utah San Rafael Energy Lab in neighboring Emery County, where CEO Isaiah Taylor has said the company hopes to build hundreds of reactors across Carbon and Emery counties.
Meralco formalizes a multi-vendor SMR feasibility study
On September 1, 2026, Meralco and Meralco PowerGen select US engineering firm Sargent & Lundy, partnered with local firm AMH Philippines, to run a formal SMR feasibility study for the Philippines - funded by a $2.8M US Trade and Development Agency grant and targeting completion in Q4 2027. The study is broader than and separate from Valar's existing Ward One research-reactor MOU with PNRI, and does not commit Meralco to Valar or any other single vendor.
Closes $1B Series B at $6B valuation
On August 3, 2026, Valar closes a $1B Series B led by Sequoia Capital's Shaun Maguire, who joins the board, tripling the company's valuation to $6B from the $2B March 2026 round. Valar separately secures a $200M credit facility led by Erebor Bank and J.P. Morgan, with Crescent Cove and Hercules Capital also participating. The capital is earmarked for shifting Ward250's architecture from prototype to factory-built, mass-produced small modular reactors.
Meralco opens talks on a Philippine SMR partnership
The Philippines' largest utility, Meralco, opens discussions with Valar Atomics around a broader small-modular-reactor partnership beyond the existing Ward One research-reactor deal with PNRI - part of a multi-vendor SMR evaluation funded partly by a US Trade and Development Agency feasibility grant. Meralco says it is not exclusive to Valar and will require a demonstrated operational track record before committing.
First pilot reactor to full power; Nvidia partnership
Ward250 becomes the first of the DOE pilot reactors to ramp to full power on June 23, 2026, and on July 1 generates 100 kW - powering Nvidia Blackwell chips live on stage as Valar and Nvidia announce plans to explore a 30 MW nearly waterless nuclear-powered AI data center in Orangeville, Utah.
On June 18, 2026, Ward250 completes a fueled criticality demonstration at the Utah San Rafael Energy Lab - the second reactor to go critical under the DOE Reactor Pilot Program (after Antares' Mark-0) and the first DOE-authorized reactor built and operated outside a national laboratory.
Announced March 31, 2026: Valar raises $450M ($340M equity + $110M debt) at a $2B valuation, with backers including Palmer Luckey and Palantir CTO Shyam Sankar, weeks after the Air Force flew its reactor equipment to Utah aboard three C-17s.
Ward250 airlifted to Utah by US Air Force C-17
On February 15, 2026, the unfueled Ward250 reactor is airlifted aboard a US Air Force C-17 Globemaster III from March Air Reserve Base, California to Hill Air Force Base, Utah, as part of 'Operation Windlord,' with Energy Secretary Chris Wright and Under Secretary of Defense Michael Duffey aboard the flight - the first demonstration that a microreactor could be transported entirely by air.
2025
Project NOVA core criticality; $130M Series A
On November 17, 2025, Valar's HALEU TRISO-fueled NOVA core achieves zero-power criticality at Los Alamos National Laboratory's NCERC facility in Nevada - the first criticality under the DOE Reactor Pilot Program. The same month it closes a $130M Series A led by Snowpoint Ventures.
Selected for DOE Fuel Line Pilot Program
On September 30, 2025, DOE conditionally selects Valar Atomics as one of four companies for its Fuel Line Pilot Program, to build and operate a TRISO nuclear fuel fabrication line supporting Ward250 and other HTGR designs - directly tied to the in-house fuel production capacity Valar's later Series B round is earmarked to fund.
Ward250 groundbreaking in Utah
On September 17, 2025, Valar breaks ground on the Ward250 test reactor at the Utah San Rafael Energy Lab in Emery County, Utah, in partnership with DOE and the State of Utah.
Selected for DOE Reactor Pilot Program
On August 12, 2025, DOE names Valar Atomics one of 11 initial projects in its Reactor Pilot Program under Executive Order 14301, which targets at least three DOE-authorized test reactors reaching criticality by July 4, 2026.
Sues the NRC over small-reactor licensing
In April 2025 Valar joins Texas, Utah, Louisiana, Florida, Arizona, Last Energy, and Deep Fission in a federal lawsuit arguing the NRC unlawfully requires full commercial licensing for low-power test reactors like its 100 kWt Ward One.
Philippines partnership for Ward One
Valar partners with the Philippine Nuclear Research Institute (with US-based EOS Organization funding) to build Ward One, a 100 kW TRISO-fueled research microreactor - its first uranium-fueled reactor project, sited under the US-Philippines 123 Agreement.
Out of stealth with $19M seed and Ward Zero
In February 2025 Valar emerges from stealth with a $19M seed round led by Riot Ventures, having already completed Ward Zero - a 1:1 non-nuclear thermal prototype with silicon carbide heating elements - in 10 months.
2023
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$1.6Bdisclosed across 4 rounds with a stated amount
Cumulative disclosed raise · dated rounds
Seed
February 2025
Riot Ventures (lead), AlleyCorp, Day One Ventures, Initialized Capital, Steel Atlas
Series A
November 2025
Snowpoint Ventures (lead, Doug Philippone), Palmer Luckey, Shyam Sankar, Dream Ventures, Day One Ventures, Contrary
Equity + debt round
March 2026
$450M ($340M equity + $110M debt) at $2B valuation
Palmer Luckey, Shyam Sankar, John Donovan, Snowpoint Ventures, Day One Ventures, Dream Ventures (no publicly named lead)
Series B
August 2026
$1B equity at $6B valuation, plus a separate $200M credit facility
Equity: Sequoia Capital (lead, Shaun Maguire), Atreides Management, Point72, Snowpoint Ventures, Apandion Capital, Conviction, Dream Ventures, HOF Capital, Riot Ventures, Valor Equity Partners. Credit facility: led by Erebor Bank and J.P. Morgan, with Crescent Cove and Hercules Capital participating.
