Idaho National Lab

The nation's nuclear energy research laboratory. (RTs are not endorsements)

[Idaho National Lab @INL]

At Idaho National Laboratory, our work is more than #research, it’s a commitment to building a better future for our communities, our country and the world.

Learn more ➡️ https://t.co/yzvVJ20vYf

#BetterFutureINL

[Idaho National Lab @INL]

Happy 1️⃣3️⃣6️⃣th birthday, #Idaho! 🎉

@INL is proud to call the Gem State home to the impactful #research benefiting our state and the nation.

Learn more: https://t.co/cPEOi9dGVi

#Nuclear #Energy #AI #NationalSecurity

[Idaho National Lab @INL]

.@EnergyUnderSec visited @INL, touring facilities & meeting with experts to learn about the advanced #NuclearReactors on track for criticality this summer, HALEU fuel production, #CriticalMinerals processing, #AI-accelerated #nuclear & cyber defense.⚡🇺🇸

https://t.co/cPEOi9dGVi

[Idaho National Lab @INL]

This milestone also marks the first criticality under the newly established @NRICnuclear Nuclear Energy Launch Pad — the follow-on initiative to @ENERGY's Reactor Pilot Program designed to accelerate commercial deployment of advanced #nuclear.

#NuclearRenaissance #NuclearEnergy

[Idaho National Lab @INL]

.@DeployableE's demonstration reactor, Unity, achieved criticality, helping meet the goal set by executive orders to have at least three advanced #NuclearReactors critical by July 4th. Congrats! ⚛️👏

@ENERGY @NRICnuclear #NuclearEnergy #America250 #NuclearRenaissance

[Office of Nuclear Energy | US Department of Energy @GovNuclear]

CRITICALITY NUMBER THREE! 🎉

On June 30, 2026, at around 11:55 PM MDT, @DeployableE’s Unity microreactor achieved initial criticality at @INL. It is the third nuclear test reactor this year to go critical under @ENERGY authorization.

Congratulations to Deployable Energy on reaching this historic milestone!

[Idaho National Lab @INL]

.@INL was honored to host @SecretaryWright  to celebrate executive orders signed last May to accelerate advanced #NuclearReactors achieving criticality. Watch the recap! ⚛️⬇️

More on our #nuclear research: 
https://t.co/k0AIF1hbMH
https://t.co/DgxajlSaIQ

@ENERGY @GovNuclear

[Idaho National Lab @INL]

The first advanced #NuclearReactor achieved criticality under @ENERGY's Reactor Pilot Program recently! But what does achieving criticality mean? ⚛️💫

It means a reactor achieves a self-sustaining chain reaction. More on our new reactor #criticality page: https://t.co/7xfvw2zh4W

[Idaho National Lab @INL]

At 6-foot-8, Tanner Mauseth stands out. So does his work at @INL.🔬

Mauseth uses advanced microscopes and precision testing tools to study irradiated #nuclear material, support #NuclearResearch and train the next generation of scientists.

Read more ➡️ https://t.co/R1TMmholRv

[Idaho National Lab @INL]

In 1951, four lightbulbs flickered to life by #NuclearEnergy in the Idaho desert, changing the world forever. ⚛️💡

After five decades of continuous milestones, @INL is leading the most ambitious #nuclear energy push since Apollo 11.

Watch the full film: https://t.co/4PrtsLeL6T

[Idaho National Lab @INL]

In 1951, four lightbulbs flickered to life by #NuclearEnergy in the Idaho desert, changing the world forever. ⚛️💡

After five decades of continuous milestones, @INL is leading the most ambitious #nuclear energy push since Apollo 11.

Watch the full film: https://t.co/4PrtsLeL6T

[Idaho National Lab @INL]

.@INL plays a vital role in the design, fabrication & testing of many different types of #NuclearFuel. ⚛️

This includes metallic fuels that can be used in just about any type of #NuclearReactor, including those in our current reactor fleet!

Learn more: https://t.co/mvUgbY7msQ

[Idaho National Lab @INL]

Criticality is the point at which a #nuclear reactor achieves a self-sustaining chain reaction. Achieving criticality involves a series of carefully controlled steps during #NuclearReactor commissioning. ⚛️

Learn more: https://t.co/DgxajlRCTi

#NuclearEnergy #NuclearFission

[Idaho National Lab @INL]

The story of how #nuclear innovation in Idaho changed the future of #energy in 1951 – and what's being built @INL right now – is coming! ⚛️

Stay tuned for the documentary release on Monday!

INL nuclear history & innovation:
🔗https://t.co/eGsxr6hFrh
🔗https://t.co/cUn3TCnzhe

[Idaho National Lab @INL]

.@INL partnered with @nuvationenergy & @fluenceenergy on #CyberInformedEngineering to fortify the cyber‑physical resilience of battery #EnergyStorage systems.🤝

Nuvation collab: https://t.co/h8t672qwZ7
Fluence implements CIE: https://t.co/mOmic3qN1l
CIE: https://t.co/rYWBAP0Re7

[Idaho National Lab @INL]

After sharing #nuclear achievements & vision for the future with the press at the @INL Site today, @SecretaryWright joined INL & DOE-Idaho staff members, reactor developer leadership, and local, state, & federal stakeholders to celebrate the success. 👏

https://t.co/cUn3TCnzhe

[Idaho National Lab @INL]

Today, @SecretaryWright met with #nuclear developers & toured @INL
facilities showcasing the #NuclearReactors that have successfully achieved this milestone, learning about additional reactors & fuel line projects.

https://t.co/cUn3TCnzhe

#AdvancedNuclear #NuclearEnergy

[Idaho National Lab @INL]

It’s a pleasure to welcome @SecretaryWright back to @INL to celebrate the direct results of the #nuclear executive orders: advanced #NuclearReactors achieving criticality! ⚛️ 🤝

#EnergyDominance #NuclearRenaissance

[Idaho National Lab @INL]

.@INL SparkLab scholars wrapped up the high school research program by presenting their work at a public #research showcase.

Six scholars earned Bright Future in Energy Scholarships, totaling $10K in awards. Congrats!👏

More on SparkLab: https://t.co/i0xvcO8j9q

#STEM #K12STEM

[Idaho National Lab @INL]

Congrats, @GeneralAtomics! ⚛️

@INL is proud to be part of this public-private partnership, along with @UCSanDiego & key industry & academia partners, aimed at accelerating the engineering validation for commercial #FusionEnergy.

https://t.co/uPyuOMC25u

#Nuclear #NuclearFusion

[General Atomics @GeneralAtomics]

General Atomics has been awarded a $20 million California Competes tax credit from the State of California, through the Governor’s Office of Business and Economic Development, to support continued growth in fusion energy science and development.

This investment will help create high-quality jobs, attract future investment and strengthen California’s role in advancing clean, abundant energy. Learn more: https://t.co/wnc5Aiiy8u

[Idaho National Lab @INL]

.@INL led a first-of-a-kind study with @Argonne & @NatLabRockies, using a dynamic modeling approach to run hundreds of thousands of scenarios to analyze the entire #bioenergy supply chain & maximize yields.🔬

#ModelingAndSimulation #AdvancedManufacturing
https://t.co/RXJ2hpOJ4h

[Idaho National Lab @INL]

In @INL’s May 2026 Power Up issue 📣:
⚛️ @AntaresNuclear’s Mark‑0 achieved the first advanced #Reactor criticality at INL
🏗️ A new lab is driving #Resarch on next‑gen materials
🔒 INL teams are strengthening #CriticalInfrastructure and cybersecurity

https://t.co/KHf6k0zAIS