Table of Contents
⚠ Disclaimer: This entry may be incomplete, out of date, or inaccurate. It is AI-maintained on a best-effort basis. Do not rely on it as a sole source — verify claims independently using the sources listed below.
Summary
Deployable Energy is a Houston, Texas microreactor startup founded in 2025 by CEO Bobby Gallagher, building the Unity Nuclear Battery (UNB) — a 1 MWe gas-cooled microreactor sized to fit a standard shipping container and designed for factory manufacture rather than site-built construction. Unity reached criticality at Idaho National Laboratory on June 30, 2026, about 150 days after project kickoff, making Deployable the third company to hit the Trump administration’s July 4, 2026 deadline for three US reactors to achieve criticality under DOE’s Reactor Pilot Program / Nuclear Energy Launch Pad. The company is self-funded and has not disclosed a priced institutional round, but in August 2026 alone it announced strategic equity investments from Solaris Energy Infrastructure (NYSE: SEI) and Hornbeck Offshore, on top of an earlier $22.5 billion, 40-year data center power pipeline deal with GridMarket. Unity is aimed at remote, defense, maritime, and behind-the-meter industrial/data center power rather than grid-scale generation; commercial deployment is targeted for 2028.
Key Facts
- Founded: 2025
- HQ: Houston, TX (Energy Corridor)
- Type: Private; self-funded as of April 2026 (Axios); raising a pre-seed round (~$25M target per Pitch.vc listing, terms not independently confirmed)
- CEO & Co-Founder: Bobby Gallagher
- Reactor: Unity Nuclear Battery (UNB) — 1 MWe microreactor
- Reactor type: Gas-cooled (helium primary loop), water-moderated; NRC pre-application materials describe it as “actively cooled helium primary loop” during operation
- Fuel: Standard low-enriched uranium dioxide (LEU, not HALEU) — a deliberate choice to use existing commercial fuel supply chains rather than novel HALEU
- Form factor: Designed to fit a standard 20-foot shipping container; factory-manufactured, transportable
- Refueling interval: Claimed >5 years between refuelings (per Hornbeck Offshore MOU materials)
- Key milestone: Achieved criticality June 30, 2026 at the National Reactor Innovation Center (NRIC), Idaho National Laboratory — ~150 days from program kickoff
- DOE program: Selected April 28, 2026 as one of the first four companies in DOE’s Nuclear Energy Launch Pad (alongside General Matter, NuCube Energy, and Radiant Industries); building on the original Reactor Pilot Program created under a May 2025 executive order that set a goal of three US reactors reaching criticality by July 4, 2026
- NRC engagement: Pre-application activities open since October 2025 (NRC Project Number 99902155) covering siting, construction, and operation; not yet at Construction Permit or COL stage
- DOE safety milestone: Preliminary Documented Safety Analysis (PDSA) for the Unity criticality test approved by DOE — reported as May 29, 2026 (106 days from kickoff) by one outlet and June 23, 2026 by another; sources disagree on the exact approval date (see Claim Verification)
- Commercial traction claimed: >$10 billion in nonbinding LOIs (per Deployable's own NRC filing, spanning data centers to remote island community power) as of mid-2026, plus the separate $22.5B GridMarket pipeline below
- Commercial target: 2028 initial commercial deployments; gigawatt-scale by 2030; targeting up to 10,000 units/year by the mid-2030s (per UT Austin McCombs coverage, sourced to co-founder Sanjay Mukhi)
What It Is / How It Works
“Nuclear as a manufactured product”: Deployable Energy’s founding thesis, echoed across its materials, is that nuclear power should be built like an industrial product on a factory line rather than engineered as a bespoke construction project each time. The company explicitly avoids “large forgings, exotic materials, exotic coatings” that lengthen lead times for other advanced reactor designs, instead using conventional low-enriched uranium fuel and materials sourced from existing industrial supply chains. This positions Unity as a low-HALEU-risk design relative to sodium-fast or pebble-bed competitors (Oklo, X-energy, TerraPower) that depend on a thin domestic HALEU enrichment base.
Gas-cooled, container-scale microreactor: Unity is a 1 MWe gas-cooled reactor using a helium primary loop and standard LEU uranium dioxide fuel, engineered to be transportable within a standard 20-foot shipping container footprint. The pitch is a “nuclear battery” — a sealed, factory-built unit that can be shipped to a site, operated for years without refueling, and removed or replaced rather than maintained in place like a conventional plant. This form factor targets use cases where grid power is unavailable, unreliable, or operationally undesirable: remote communities, defense installations, humanitarian/disaster response, offshore and maritime vessels, and behind-the-meter industrial or data center loads.
Houston as a manufacturing base: Gallagher has been explicit that Houston was chosen deliberately to draw on the region’s oil-and-gas-honed capacity for manufacturing industrial equipment, pressure vessels, and vessels/marine hardware at scale — the same logic several other nuclear and energy startups in this research section apply to shipyard or offshore-fabrication-based construction (compare Blue Energy’s shipyard-built LWR approach).
DOE Reactor Pilot Program pathway: Unity’s criticality test proceeded under DOE authorization at a national laboratory site (INL/NRIC) rather than through the NRC’s civilian reactor licensing process, which is a separate and much longer pathway. Deployable opened NRC pre-application activities (Project 99902155) in October 2025 for the follow-on step of siting, construction, and operation of commercial units — this is preliminary engagement, not a Construction Permit or Combined License application, and should not be read as NRC authorization to build or operate a commercial reactor.
Maritime and offshore push: The August 2026 Hornbeck Offshore MOU is Deployable’s most concrete articulation of a specific market: inland waterway vessels, offshore platforms and vessels, national security/autonomous vessel logistics, power barges, and floating data centers. The stated commercial target is at least a 20% total-cost-of-ownership reduction versus marine diesel or grid power over a 10-year horizon, at multi-gigawatt scale — a claim that, like Unity’s other commercial targets, is unproven at this stage (see Claim Verification).
Notable Developments
- 2026-08-17: Signed MOU with Hornbeck Offshore, which also made a strategic equity investment in the company, targeting five maritime/offshore markets for Unity deployment (inland waterways, offshore vessels/platforms, national security logistics, power barges, floating data centers); joint working group targets ≥20% total-cost-of-ownership reduction vs. diesel/grid power over 10 years at multi-gigawatt scale. (PR Newswire)
- 2026-08-10: Solaris Energy Infrastructure (NYSE: SEI) announced a strategic equity investment and commercialization collaboration to advance Unity toward mission-critical defense, industrial, and digital-infrastructure applications; investment amount not disclosed. (PR Newswire)
- 2026-07-07: Announced partnership with GridMarket targeting a $22.5 billion, 40-year ($145B total contract value per some reporting) pipeline to supply data center, cloud, and industrial customers; goal of 3+ GW of Unity capacity by 2035, ramping at ~500 MW/year from 2030–2035.
- 2026-06-30: Unity demonstration reactor achieved criticality at NRIC/Idaho National Laboratory, ~150 days from project kickoff — the third US reactor (after Antares Nuclear’s Mark-0 on June 4, 2026 and Valar Atomics’ Ward 250 on June 22, 2026) to hit the DOE Reactor Pilot Program’s July 4, 2026 target. Announced July 1, 2026. (PR Newswire)
- 2026-06 (date disputed across sources — see Claim Verification): DOE approved Deployable’s Preliminary Documented Safety Analysis (PDSA) for the Unity criticality test, clearing the path to commissioning and criticality testing.
- 2026-04-28: Selected as one of DOE’s first four Nuclear Energy Launch Pad companies (with General Matter, NuCube Energy, and Radiant Industries), providing enhanced technical, regulatory, and deployment support at national labs.
- 2025-10: Opened NRC pre-application engagement (Project Number 99902155) for siting, construction, and operation of Unity units.
- 2025-07-24: Joined the Texas Nuclear Alliance industry group.
- 2025: Founded by Bobby Gallagher in Houston; self-funded through an angel round within ~10 months of founding.
Key People
Bobby Gallagher — CEO & Co-Founder
- LinkedIn: linkedin.com/in/bobbyjgallagher
- Background: Commissioned officer in the Australian military (four-generation family service tradition); worked across global shipyards in East Asia, the Baltic, and the Gulf of America on supply chain and project execution; previously co-founded a venture-backed deep-tech startup focused on offshore oil-and-gas safety
- Notes: Gallagher’s Australian nuclear-industry origin story has drawn some domestic Australian press attention as an example of nuclear talent finding a faster commercial path in the US regulatory/DOE environment than at home
Lance Maul — Co-Founder & Chief Operations Officer
- LinkedIn: linkedin.com/in/lancemaul
- Background: Career focused on reactor technology and startup execution; quoted as having “fell in love with reactors” but found the incumbent nuclear industry too slow-moving
Sanjay Mukhi — Chief Commercialization Officer & Co-Founder
- LinkedIn: linkedin.com/in/sanjaymukhi
- Background: 20+ years in US government nuclear advancement; US Department of State (global nuclear competitiveness); leadership team at Idaho National Laboratory’s National Reactor Innovation Center; MBA 2023, UT Austin McCombs School of Business
- Notes: ⚑ Overlap: Mukhi’s prior role on the NRIC leadership team at Idaho National Laboratory — the same DOE facility where Unity achieved criticality — is a direct institutional overlap between Deployable Energy and the DOE testing infrastructure used by essentially every company in this research section’s Reactor Pilot Program cohort (Antares Nuclear, Valar Atomics, and others also test at INL/NRIC)
Richard Gaut — Chief Financial Officer
- LinkedIn: not found
- Background: 15+ years investing in transformational oilfield technologies; prior working partnership with CEO Bobby Gallagher predating Deployable Energy
Robbie Mardus-Hall — Head of Modeling
- LinkedIn: not found
- Background: Nuclear research experience including paper reactor studies and operation of a world-class research reactor (specific institution not disclosed in public sources)
Phillip Moor — Head of Engineering
- LinkedIn: not found
- Background: Full lifecycle nuclear plant experience — construction, operation, modification, decommissioning; licensed Professional Engineer; has served as expert witness on failed nuclear construction projects; 20+ years advising advanced reactor programs
People — Last Reviewed: 2026-08-18
Supply Chain Position
| Layer | Detail |
|---|---|
| Fuel | Standard LEU uranium dioxide — avoids the constrained domestic HALEU supply chain that Oklo, X-energy, and Kairos depend on; broader existing fabricator base |
| Reactor materials | Deliberately avoids exotic materials, large forgings, and exotic coatings per company statements; sourced from conventional industrial/oil-and-gas supply chains |
| Manufacturing | Factory production in Houston, leveraging Gulf Coast oil-and-gas/shipbuilding industrial base; specific fabrication partners not fully disclosed |
| Testing site | National Reactor Innovation Center (NRIC), Idaho National Laboratory — shared federal testing infrastructure used by other Reactor Pilot Program companies (Antares Nuclear, Valar Atomics) |
| Regulatory pathway | DOE authorization (Reactor Pilot Program / Nuclear Energy Launch Pad) for the demonstration unit; separate NRC pre-application (Project 99902155, opened Oct 2025) for future commercial siting/construction/operation — commercial units will require full NRC licensing, not just DOE authorization |
| Strategic investors / partners | Solaris Energy Infrastructure (NYSE: SEI, Aug 2026), Hornbeck Offshore (Aug 2026), TAM Capital, Louisiana Research, Nuclear Energy Institute, Texas Nuclear Alliance |
| Commercial offtake (downstream) | GridMarket ($22.5B/3+ GW data center pipeline through 2035); Hornbeck Offshore (maritime/offshore MOU); >$10B in additional nonbinding LOIs per Deployable’s NRC filing (data centers to remote island community power) |
⚑ DOE authorization ≠ NRC license: Unity’s criticality test was conducted under DOE authority at a national laboratory, a distinct and faster pathway than NRC civilian reactor licensing. Deployable’s NRC pre-application activities (opened October 2025) are preliminary regulatory engagement, not a Construction Permit or Combined License application. Commercial deployment outside DOE/national-lab sites will require the same multi-year NRC licensing process other advanced reactor developers in this section face — track NRC docket 99902155 for the real commercial-licensing milestone, not the DOE criticality announcement.
⚑ Nearly all commercial “pipeline” is nonbinding: The $22.5B GridMarket figure and the >$10B in LOIs cited in Deployable’s NRC filing are, based on the standard usage of “LOI” and “pipeline” across this research section’s nuclear entries (see Oklo, Blue Energy), very likely nonbinding letters of intent rather than contracted revenue. No source reviewed here confirms binding PPA status for any of these figures.
Claim Verification
Claim: Unity reached criticality in ~150 days from project kickoff
Status: Partially verified — the ~150-day figure and the June 30, 2026 criticality date are consistently reported, but the DOE PDSA approval date that anchors the “kickoff” baseline is inconsistently reported (May 29 vs. June 23, 2026) across otherwise credible trade outlets
Supporting: DOE Secretary Chris Wright, INL Director John Wagner, and CEO Bobby Gallagher are all quoted with the ~150-day figure in the official July 1, 2026 press release; the University of Texas McCombs coverage independently reports “155 days,” a close but not identical figure, suggesting the number is a rounded approximation rather than a precisely tracked figure across all sources
Refuting / questioning: NEI Magazine dates DOE’s Preliminary Documented Safety Analysis approval to May 29, 2026 (“106 days from program kickoff”), while NucNet dates a DOE documented-safety-analysis approval to June 23, 2026 — these may describe two different safety-review milestones rather than a genuine contradiction, but the public reporting does not clearly distinguish them, and neither this entry nor the underlying sources can currently resolve which date anchors the “150 days” claim
Summary: The criticality achievement itself (June 30, 2026, at NRIC/INL) is well corroborated across the company’s own release, DOE, and multiple trade press. The precise 150-day timeline should be read as an approximate, company-promoted figure rather than a precisely audited one.
Claim: $22.5 billion GridMarket pipeline / 3+ GW by 2035
Status: Unverified as binding commercial revenue
Supporting: The deal was announced via GlobeNewswire (a wire service, per this section’s sourcing preference for funding/commercial facts) on July 7, 2026, with specific figures (3+ GW target, 500 MW/year 2030–2035 ramp, 40-year term) attributed to both companies
Refuting / questioning: No operating or under-construction Unity unit exists yet outside the single INL demonstration reactor; GridMarket is described in coverage as an energy-project “facilitator” rather than a hyperscaler or industrial end customer itself, meaning the $22.5B figure represents an intermediary’s projected pipeline rather than signed end-customer contracts; Deployable’s own commercial production targets (2028 commercial units, GW-scale by 2030, 10,000 units/year by the mid-2030s) require the company to scale from zero commercial units to mass manufacturing in roughly two years, a timeline with no precedent among the companies tracked in this research section
Summary: The GridMarket announcement is real and well-sourced as an announced partnership, but the $22.5B figure should be read as a target pipeline value, not contracted or binding revenue. Track for conversion to named end-customer PPAs.
Claim: Unity avoids HALEU/exotic-material supply constraints by design
Status: Partially verified
Supporting: NRC pre-application materials independently confirm Unity uses “standard low enriched uranium dioxide fuel” rather than HALEU, consistent with company statements; this is a verifiable design choice, not just marketing language
Refuting / questioning: Using standard LEU does reduce fuel-supply risk relative to HALEU-dependent designs (Oklo, X-energy, Kairos), but it does not eliminate execution risk elsewhere — DOE-scale testing has not yet demonstrated the company’s factory-manufacturing and supply-chain claims at the volumes implied by its 2028–2035 targets
Summary: The LEU fuel choice is a genuine, verifiable risk reduction relative to HALEU-dependent Gen IV competitors in this section. The broader “manufactured product” cost and speed claims remain unproven at commercial scale.
Sources
- Deployable Energy — deployable.energy
- About — Deployable Energy
- Meet the Deployable Energy Leadership Team
- Deployable Energy Announces Unity Demonstration Reactor Achieves Criticality at Idaho National Laboratory — PR Newswire
- Deployable Energy and Hornbeck Offshore Partner to Advance Maritime Nuclear Power — PR Newswire
- Hornbeck Offshore Backs Deployable Energy’s Unity Nuclear Battery for Offshore Use — Offshore Source
- Deployable Energy Welcomes Strategic Investment and Commercialization Collaboration with Solaris Energy Infrastructure — PR Newswire
- Unity microreactor clears safety hurdle — NEI Magazine
- Deployable Energy Reaches Regulatory Milestone for Microreactor Plans — NucNet
- Deployable Energy achieves criticality at INL — ANS Nuclear Newswire
- DOE Selects First Companies for Nuclear Launch Pad — ANS Nuclear Newswire
- Exclusive: Houston startup races to power up nuclear microreactor — Axios Houston
- Deployable Energy — NRC Pre-Application Activities
- Betting on Nuclear — UT Austin News
- Atomic Show #345 – Bobby Gallagher, CEO Deployable Energy — Atomic Insights
- Advanced US Nuclear Battery Deal Targets 3000 MW Power With $22.5 Billion Pipeline — ZeroHedge
See Also
Nuclear section overview: Nuclear Energy Research — deployment status tracker and DOE Reactor Pilot Program context alongside Oklo, Blue Energy, TerraPower, X-energy, Kairos Power, and GE Vernova Hitachi.