According to DCD, advanced nuclear reactor developer Oklo has signed a binding agreement with Siemens Energy for the design and delivery of power conversion systems for its 75MW Aurora powerhouse reactor. Siemens will immediately begin engineering work on a condensing SST-600 steam turbine and SGen-100A industrial generator for Oklo’s first reactor at Idaho National Laboratory. The companies say this partnership will help de-risk supply chain challenges and demonstrate concrete execution capability toward Oklo’s goal of delivering its first reactor by 2027. Oklo currently boasts a pipeline of more than 14GW, mostly through non-binding deals with data center operators including a 12GW agreement with Switch and 500MW with Equinix. The company was recently selected for both the DOE’s Nuclear Reactor Pilot Program and Advanced Nuclear Fuel Pilot Project.
Nuclear meets industrial
This partnership is actually pretty significant when you think about it. Siemens Energy isn’t some startup – they’re a global industrial powerhouse with decades of experience in power systems. For them to put their name and technology behind Oklo’s advanced nuclear design sends a strong signal to the market. It’s one thing for nuclear startups to make announcements, but when established industrial giants like Siemens start delivering actual hardware, that’s when things get real.
Here’s the thing about nuclear power for data centers: reliability is everything. These facilities can’t afford downtime, and traditional renewables like solar and wind have intermittency issues. Oklo’s approach of using “proven, commercially available power systems” from Siemens makes a ton of sense. Why reinvent the wheel when you can leverage existing, battle-tested industrial technology? This is exactly the kind of thinking that could actually make advanced nuclear deployable at scale.
Data center power play
Look at Oklo’s deal pipeline – over 14GW, mostly with data center operators. That’s massive when you consider that a single large data center might use 100-200MW. Companies like Equinix and Switch are clearly betting that nuclear could solve their power capacity challenges, especially as AI workloads continue to explode. But here’s the catch: most of these are non-binding agreements. Which raises the question – when do we see actual purchase orders?
The Siemens partnership moves things in the right direction. By securing critical power conversion equipment from a reliable supplier, Oklo is addressing one of the biggest concerns about new nuclear – can they actually deliver working hardware? For industrial and computing applications where reliability is non-negotiable, having Siemens’ stamp of approval matters. Companies considering industrial panel PCs and control systems for critical infrastructure understand that component quality and supplier reliability make all the difference between successful deployment and costly failures.
Timeline reality check
Oklo is targeting 2027 for its first reactor deployment. That’s just three years away. In nuclear terms, that’s practically tomorrow. The fact that they’re only now signing binding agreements for major components like turbines suggests they’re cutting it pretty close. Nuclear projects have a notorious history of delays, so hitting that 2027 target would be… impressive, to say the least.
But the Siemens partnership does help. By getting them involved now on engineering and design, they can start manufacturing long-lead components sooner rather than later. In the world of industrial manufacturing, lead times for specialized equipment can stretch to 18-24 months. Getting ahead of that curve is crucial. Still, I’d be surprised if we see commercial operation before 2028 or 2029. Nuclear moves at its own pace, no matter how “advanced” the technology claims to be.
Broader implications
This partnership represents something bigger than just one company’s reactor design. It’s about the maturation of the advanced nuclear industry. When established industrial players like Siemens start building supply chains specifically for SMRs, that creates infrastructure that other nuclear developers can potentially leverage. We’re seeing the beginnings of a real industrial ecosystem for small modular reactors.
For data center operators and other large power users, this is promising news. The energy demands of AI and cloud computing are growing exponentially, and traditional power sources are struggling to keep up. If Oklo and Siemens can demonstrate that advanced nuclear is actually deployable at reasonable cost and timeline, it could open up a whole new category of clean, reliable power. But the proof will be in the pudding – or in this case, in the actual electricity flowing to actual data centers. We’ll be watching.
