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Tag: Valar Atomics

  • The US now has three microreactors running – and data centers are watching closely

    The Nuclear Leap: Three Microreactors Power Data Centers

    The future of energy, once confined to theoretical physics, is rapidly becoming a tangible reality. A significant milestone has been achieved in the quest for advanced nuclear technology, with three independent microreactors now successfully running data centers, marking a major step in accelerating Department of Energy research.

    This breakthrough demonstrates that small, contained nuclear systems are moving from the laboratory into practical application. The success involves advanced concepts for safely harnessing nuclear energy on a smaller scale, promising a cleaner and more accessible power source.

    Leading this charge are several pioneering projects. Unity, a microreactor developed by Houston-based Deployable Energy, is the most recent to reach criticality. This achievement solidifies Unity‘s role in pushing the boundaries of deployable nuclear technology.

    Joining Unity are two other remarkable reactors that cleared this critical hurdle in June: Antares, a reactor based in Torrance, and Valar Atomics, located in El Segundo. Together, these three facilities represent a significant progression in demonstrating the viability of advanced nuclear designs for commercial use.

    This coordinated effort by the Department of Energy highlights a determined push to accelerate complex scientific demonstrations. It signals an exciting shift toward harnessing advanced nuclear technologies not just for theoretical research, but for real-world applications like powering essential data centers.

    The achievement underscores the potential of microreactor technology: compact, safe, and scalable solutions that can contribute to both energy independence and technological advancement. As these reactors operate, they provide compelling evidence that advanced nuclear demonstrations are poised to deliver transformative benefits for the energy sector.

    Credit: TechSpot

  • Startup activates nuclear microreactor live on stage to power an Nvidia RTX Spark desktop PC — firm working with Nvidia to build a 30MW closed loop AI factory that doesn’t use local water

    Featured image Startup activates nuclear microreactor live on stage to power an Nvidia RTX Spark desktop PC firm working with Nvidia to build a 30MW

    The future of artificial intelligence demands unimaginable power, and the race to supply it is heating up—not just with silicon chips, but with advanced nuclear technology. A significant step toward this energy revolution was recently taken by Valar Atomics, which brought a nuclear microreactor to life on stage, cementing a bold partnership with Nvidia to power an AI factory.

    The demonstration wasn’t just a show; it was a blueprint for the future. During the live event, a team member connected an Nvidia RTX desktop unit directly to the reactor system, activating the Blackwell-powered PC at 37% capacity. This seemingly simple action revealed a complex energy chain: the fission of 10 to 15th power uranium atoms generated thermal energy, which was captured by a cooling loop and converted into electricity via a thermal electric generator (TEG).

    This newly generated power is what directly fuels high-performance computing. As CEO Isiah Taylor explained on stage, the process demonstrates how thermal energy is efficiently extracted to create the electrical current powering the Nvidia Blackwell chip, which in turn runs a website hosted solely from that reactor’s power source.

    Beyond this pioneering demonstration, Valar Atomics is not alone in unlocking this energy potential. Other firms, including Deployable Energy and Antares Nuclear, have also achieved criticality, meaning the path to harnessing small modular reactors (SMRs) for commercial power generation is rapidly opening up. Major technology players, including Amazon, Google, Microsoft, Nvidia, and Oracle, are already investing heavily in these nuclear solutions, recognizing that powering massive AI data centers requires a revolutionary energy source.

    The urgency behind this shift is rooted in the immense strain that AI infrastructure places on global resources. Massive data centers are responsible for staggering demands on power and water, leading to skyrocketing utility costs and significant environmental concerns. This situation has sparked widespread public resistance; surveys indicate that seven out of ten Americans do not want a data center in their backyard.

    This public pushback is forcing innovation across the industry. The focus is now on developing infrastructure that can meet these colossal demands without compromising the environment or national grids. This involves combining clean, reliable power generation with radical efficiency measures. Companies like Amazon and Microsoft are leading efforts to redefine data center operations, pushing for closed-loop cooling systems to dramatically reduce water consumption.

    Nvidia is also tackling thermal density head-on, promising liquid-cooling systems that could cut down data center water use by up to 100 percent. By merging advanced nuclear power with groundbreaking thermal management, the industry is moving toward a more sustainable and energy-independent AI future.

    Credit: Tom’s Hardware