The Most Boring Path to 10 Gigawatts: Why Nuclear Uprates Matter Right Now

Unlocking 6 to 10 gigawatts of capacity within the existing U.S. nuclear fleet requires standardized uprates of Westinghouse 3 and 4-loop pressurized water reactors. While the nuclear steam supply system can be optimized, the primary bottleneck remains the bespoke, heterogeneous balance of plant infrastructure that complicates project delivery. Alva addresses this by implementing a turnkey steam plant solution, which diverts excess steam to a standardized, external turbine generator. This approach decouples the uprate from the refueling outage critical path, bypassing complex regulatory requirements and leveraging established industrial supply chains for smaller, 200-300 megawatt turbines. By treating these uprates as repeatable, non-nuclear construction projects, this strategy provides a scalable, cost-effective method to meet the surging electricity demands of hyperscalers and AI data centers, delivering significant new nuclear capacity significantly faster than traditional new-build projects.