DeepFission

We believe this next phase will play an important role in advancing site characterization and development efforts as we continue progressing toward deployment of our one-mile-deep #NuclearEnergy systems. deepfission.com/sites 🧵3/3

As part of our testing, we also expect to use the well to lower a prototype reactor underground to help validate key aspects of our deployment approach. 🧵: 2/3

We finished ground preparations this past week for our second test well in Parsons, Kansas, which we intend to use to demonstrate deep deployment (~2500 ft) of major components and to test borehole thermal behavior. 🧵: 1/3

Deep Fission's reactors will use a fuel called Low Enriched Uranium (LEU). This fuel type is typically enriched to about 3–5%. LEU is engineered for one purpose: ➡️ Powering #nuclear reactors to deliver consistent, reliable electricity. deepfission.com/technology

Our CEO, Liz Muller, delivered a keynote at the 2026 Digital Engineering Conference hosted by @INL this past week. We are embedding AI @DeepFission where it supports strategy, strengthens execution & advances our commercialization roadmap with discipline. deepfission.com/technology

Deep Fission is excited to announce our partnership with @acceleranttech to leverage its @NEXA_academy to provide quality assurance, operations and engineering training in support of our advanced #nuclear small modular reactor program. Read more: discoveraccelerant.com/nexa-deep-fiss…

Our engineers, scientists, regulatory experts, drilling specialists & infrastructure operators are working toward one goal ➡️ accelerating the commercialization of reliable #NuclearEnergy. Building collaboratively, with long-term infrastructure in mind: deepfission.com/about-us

.@DeepFission is working to bring long-term energy projects that create real opportunity where it’s needed most. View current openings and subscribe to updates here ➡️ deepfission.com/careers #Careers #NuclearEnergy

Thank you to the Parsons #Kansas community for joining us last night to discuss @DeepFission’s #nuclear project at Great Plains Industrial Park. Our COO Mike Brasel shared project updates alongside @KState's Amir Bahadori, followed by a moderated Q&A. ➡️ deepfission.com/sites

Our @DeepFission Gravity Nuclear Reactor aims to leverage existing capabilities developed in the oil, gas and geothermal industries to deploy established pressurized water reactor (PWR) technology in a new way. Learn more: deepfission.com/technology #Nuclear #NuclearEnergy

➡️ 4 Empire State Buildings ➡️ ~9 Space Needles ➡️ Halfway+ across the Golden Gate Bridge That’s the scale of a Deep Fission borehole. By taking #nuclear 1 mile underground, we aim to deliver scalable power with natural containment + a smaller footprint. deepfission.com/technology

.@DeepFission cofounder Liz Muller grew up in a home supportive of #NuclearEnergy, yet was surrounded by skeptics. After living in France — where #nuclear is widely embraced — she returned to the U.S. asking: Why aren’t we doing more with nuclear? 🎥⬇️ deepfission.com/about-us

The typical U.S. salary is about $60–$65k a year. A #nuclear reactor operator earns closer to $123k. ⚛️ That’s not just a paycheck—it’s stability, homeownership and long-term growth. We’re working to make #careers like this possible in more communities: deepfission.com/careers

We’re not trying to invent a new type of #nuclear reactor @DeepFission, we’re building on what works. Pressurized water reactors have safely provided commercial power for decades. 64 operate in the U.S. today, generating ~12% of our electricity ⚛️ deepfission.com/technology

We’re hiring a Senior Business Development Manager @DeepFission. Help turn complex opportunities into real-world projects—working across regulators, partners and teams to get deals done. Apply: job-boards.greenhouse.io/deepfissioninc… #Hiring #EnergyJobs #NuclearEnergy #careers

We were proud to join the @ChamberParsons golf tournament this past weekend and spend time connecting with the community that’s central to our work. Our swings may need some refining, but our commitment to Parsons, Kansas is right on par. 😉⛳ deepfission.com/sites #nuclear

Our COO Mike Brasel recently spent time in Parsons, Kansas, engaging in conversations with civic groups and hosting a community webinar. It was a valuable opportunity to listen, learn and strengthen local partnerships. deepfission.com/sites

Fission is a naturally occurring process we’ve learned to harness to produce low-carbon, 24/7, reliable energy. As energy demand grows, #NuclearEnergy offers a potential path to power our world more affordably while protecting our planet. 🌎 deepfission.com/technology #EarthDay

Tuesday Trivia ⚛️  Do you know which country currently gets the nearly 70% of its electricity from #nuclear energy? Select your guess below ⬇️

.@DeepFission's reactors will use Low Enriched Uranium fuel, commonly referred to as LEU. This fuel type is typically enriched to about 3–5%. LEU is engineered for one purpose ➡️ powering #nuclear reactors to deliver consistent, reliable electricity. deepfission.com/technology