Oklo and Siemens Energy Sign Binding Contract to Expedite Procurement of the Power Conversion System for Commercial Power Plant
Oklo Inc. (NYSE: OKLO), a company pioneering advanced fission powerhouses, has taken a major step toward deploying its first commercial-scale reactor by signing a binding contract with Siemens Energy for the design and delivery of the Aurora powerhouse’s power conversion system. The agreement marks a significant milestone for Oklo, as it authorizes Siemens Energy to begin detailed engineering work and accelerate procurement of long-lead components essential for manufacturing the system. With this contract in place, Oklo is moving further into the execution phase for its first-of-a-kind advanced reactor project, signaling momentum not only for the company but also for the broader advanced nuclear industry.
The newly signed contract enables Siemens Energy to immediately start engineering the major components required for the Aurora powerhouse’s power conversion system, including a condensing SST-600 steam turbine, an SGen-100A industrial generator, and a comprehensive suite of auxiliary systems. These components will form the backbone of the system that converts thermal energy from Oklo’s advanced fission reactor into electricity. By initiating procurement early—particularly for equipment with long manufacturing timelines—Oklo aims to reduce risks, maintain schedule certainty, and ensure timely delivery ahead of the plant’s planned commissioning at the Idaho National Laboratory (INL).
Siemens Energy’s SST-600 turbine and SGen-100A generator are well-established technologies used in industrial and utility settings around the world. Their inclusion underscores Oklo’s design philosophy: pairing advanced reactor technologies with proven, commercially available equipment. This strategy reduces complexity, enhances reliability, and ensures that the Aurora powerhouse can meet its long-term goals of delivering stable, clean power. The decision to use Siemens Energy’s equipment reflects Oklo’s commitment to leveraging established industrial supply chains while introducing innovation where it matters most—in the reactor technology itself.
The power conversion system is one of the major long-lead items required for the Aurora powerhouse, alongside fuel, site development, and other infrastructure. Oklo already has secured two of those critical components: fuel material and an allocated site at INL. The Siemens Energy contract fills a remaining gap by formally initiating procurement for the power conversion system. This step de-risks significant elements of the supply chain and manufacturing process, providing greater assurance to stakeholders, regulators, and potential customers that the Aurora project is moving toward timely deployment.
Tobias Panse, Senior Vice President of Steam Turbines and Generators at Siemens Energy, emphasized the strategic importance of the collaboration. “Siemens Energy and Oklo will develop the best solution for power supply,” Panse said. “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.” His remarks highlight Siemens Energy’s confidence in advanced nuclear technology and its belief that Oklo’s reactor design aligns well with market needs for dependable and efficient clean energy.
For Oklo, the agreement is a milestone that demonstrates the company’s shift from development to execution. Alex Renner, Chief Product Officer at Oklo, described the partnership as transformative. “We are thrilled to be working with Siemens Energy, a global industry leader and key strategic partner, to bring the Aurora powerhouse online,” Renner said. “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.”
The inherent safety characteristics of Oklo’s reactor design are central to this approach. Unlike traditional large-scale nuclear power plants, which often require custom-engineered systems and complex safety equipment, Oklo’s advanced reactor incorporates passive safety features and simplified operations. This enables the use of standardized power conversion systems already validated across global industrial settings. By removing the need for custom solutions, Oklo significantly reduces deployment risk and accelerates commercialization.
The partnership also highlights broader trends shaping the future of nuclear energy. As energy demand grows—driven by electrification, data center expansion, industrial decarbonization, and the need for firm, clean baseload energy—advanced fission technologies have gained renewed attention. Companies like Oklo aim to meet these needs with smaller, flexible, factory-fabricated powerhouses capable of delivering reliable power with minimal land footprint and lower capital requirements. In this context, Siemens Energy’s involvement provides industrial credibility and reinforces the viability of the advanced nuclear supply chain.
Moreover, the collaboration sets the stage for future scaling. While the immediate focus is on the first Aurora powerhouse at INL, both companies recognize the long-term potential for expanding deployments across the United States and globally. Advanced reactors like Aurora could serve energy-intensive industries, remote communities, data centers, defense facilities, and other customers seeking dependable, carbon-free electricity with predictable costs. Siemens Energy, as a global leader in turbine and generator technology, is well-positioned to supply a growing fleet of such powerhouses in years to come.
By securing a binding contract with Siemens Energy, Oklo strengthens its project execution capabilities and demonstrates momentum toward delivering commercial advanced nuclear power. The collaboration represents a fusion of innovation and industrial experience: Oklo provides cutting-edge fission technology, while Siemens Energy contributes decades of expertise in high-performance power systems. Together, the companies aim to deliver a clean, reliable, and efficient energy solution that supports both the energy transition and long-term power demands of industrial customers.
Ultimately, this agreement is more than a procurement milestone—it is a tangible sign that commercial advanced nuclear power is nearing reality. As Oklo continues forward with design, manufacturing, and site preparation for the Aurora powerhouse, the partnership with Siemens Energy reinforces the company’s ability to execute and scale. For the broader industry, it offers a clear signal that advanced nuclear technologies are progressing from concept to deployment, backed by world-class engineering and proven industrial systems.
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