The financing will help pay for the development of more than 5 gigawatts of new power projects coming online across the US by 2039, X-Energy said in a statement Wednesday.
Amazon.com and billionaire financier Ken Griffin are among the backers anchoring a US$500 million ($655.11 million) investment in small nuclear reactors, a burgeoning technology that has been heralded as the next era for atomic energy.
The Seattle-based company has signed agreements to develop the new breed of reactors — dubbed small modular reactors, or SMRs — in both Washington and Virginia, investing in in X-Energy, a privately-held advanced nuclear reactor developer.

