Why Siemens Energy is an Key Part of Global Nuclear Power

As the push for decarbonisation continues, a new generation of energy partnerships is helping to shape the path to net zero.

The integration of advanced fission systems with proven power conversion technologies is driving progress towards a cleaner, more reliable energy future.

A new model for energy collaboration

Oklo and Siemens Energy have formalised a contract that will see Siemens design and deliver the complete power conversion system for Oklo’s Aurora nuclear powerhouse.

The agreement enables Siemens Energy to begin engineering and design work immediately, expediting procurement of long-lead components and starting the manufacturing process for critical parts of the energy system.

By combining Oklo’s expertise in advanced fission technology with Siemens Energy’s established steam turbine and generator capabilities, the partnership aims to deliver a compact, low-carbon energy solution built on proven industrial standards.

“We are thrilled to be working with Siemens Energy, a global industry leader and key strategic partner, to bring the Aurora powerhouse online,” says Alexandra Renner, Oklo’s Chief Product Officer.

“Aurora's inherent safety allows us to use proven, commercially available power systems like Siemens Energy's turbine technology.

“That design philosophy shortens timelines, lowers costs, and turns advanced nuclear into a deployable product.

“We believe this is a historic step forward for the advanced nuclear industry – a real-world purchase that demonstrates progress toward deployment and operation.”

Advancing fission for the energy transition

Oklo’s work in fast fission aims to provide stable, carbon-free electricity for industrial and grid applications while building a secure domestic supply chain for crucial nuclear materials.

The company is also advancing recycling technologies that convert used nuclear fuel into new energy, cutting waste and improving resource efficiency.

Oklo was the first company to secure a site use permit from the US Department of Energy for a commercial advanced fission plant, to be allocated fuel from Idaho National Laboratory (INL), and to submit a custom combined licence application for an advanced reactor to the US Nuclear Regulatory Commission.

The new contract allows Siemens Energy to lead detailed design and engineering work for a condensing SST-600 steam turbine and an SGen-100A industrial generator for Oklo’s first advanced reactor – the Aurora powerhouse at INL.

These power conversion systems are essential, long-lead elements in commencing power operations at Aurora.

Securing performance and reducing project risk

With the Aurora-INL project already supported by approved fuel and site allocation, the Siemens Energy partnership mitigates remaining supply chain and production risks.

By locking in critical equipment early, Oklo and Siemens Energy can maintain delivery certainty while demonstrating commercial readiness for advanced nuclear deployment.

“Siemens Energy and Oklo will develop the best solution for power supply,” notes Tobias Panse, Senior Vice President, Steam Turbines and Generators, Siemens Energy.

“We offer best-in-class solutions for reliable power supply with the highest efficiency. Oklo’s small modular reactor solutions are ideal for companies with large power demand. This agreement brings our partnership to life.”

As Oklo moves closer to demonstrating commercial operations, the collaboration also strengthens Siemens Energy’s position as a key turbine technology partner for emerging clean energy initiatives. 

Together, the companies are creating a blueprint for scalable, high-efficiency nuclear generation – a crucial element of a resilient, low-carbon energy mix for the decades ahead.