Alva Energy

Alva Energy is a nuclear project management and delivery company that unlocks stranded capacity at existing U.S. nuclear plants through standardized power uprates, adding 250-300 MWe per reactor at roughly $1 billion per project with construction times under two years. As the first independent nuclear uprate delivery organization, Alva uses proven NRC-licensed technologies — advanced steam generators, nuclear fuel improvements, and thermal-hydraulic safety analysis — to transform one-off uprate efforts into repeatable, financeable infrastructure projects for utilities and power purchasers. Founded in 2024 and based in Cambridge, Massachusetts, the company came out of stealth with $33 million in backing from Playground Global, 8VC, NGP, and Segra Capital.