Amazon and Laurene Powell Jobs Invest in Nuclear Startup X-energy's $700M Series C Round

X-energy secures funding to advance its small modular reactor technology, aiming to address growing energy demands with safer nuclear solutions.

X-energy raised an additional $200 million, bringing its Series C funding to $700 million, with backing from Amazon, Laurene Powell Jobs' Emerson Collective, and other investors.
The funding will support the regulatory approval process, reactor design completion, and the construction of a fuel fabrication facility in Oak Ridge, Tennessee.
X-energy's Xe-100 small modular reactors (SMRs) are designed to produce 80 megawatts of electricity each, using TRISO fuel that is engineered for enhanced safety and resistance to meltdowns.
Amazon's October investment includes plans to develop 320 megawatts of nuclear power across four reactors in Washington state to power its data centers, with operations projected for the early 2030s.
While X-energy has yet to receive Nuclear Regulatory Commission approval or build a working reactor, it is among the best-funded SMR startups, with $1.1 billion raised to date.