A rendering of Radiant's Kaleidos microreactor
Equinix stated: “Equinix is taking a diversified portfolio approach to the global energy challenge by tapping into innovative power technologies and working directly with utilities to strengthen the grid.” The Kaleidos microreactors, using a graphite core and TRISO fuel, are portable and designed for quick deployment, offering clean and reliable energy. Equinix noted: “Next generation nuclear technologies can offer a pathway to faster nuclear deployments due to their simplified design and robust safety features.”
Radiant, chosen in 2025 by the U.S. Defense Innovation Unit for its microreactor program, shared on X: “We're proud to share that Equinix, the world leader in digital infrastructure, has signed a deal and submitted deposits for the purchase of 20 Kaleidos microreactors. This is not only the largest deal to date for us, it's the largest deal to date for any mass-manufactured reactor.”
In the Netherlands, Equinix signed a Letter of Intent with ULC-Energy for up to 250 MWe from Rolls-Royce small modular reactors (SMRs). Michiel Eielts, Managing Director for Equinix in the Netherlands, said: “Our partnership with ULC-Energy marks an important milestone in Equinix's mission to support sustainable growth in the Netherlands.” ULC-Energy CEO Dirk Rabelink stated: “Small modular reactors (SMRs) are ideally suited to power increasing demand for data centres. They can deliver clean baseload electricity safely, reliably, and affordably.”
Equinix’s earlier 2024 agreements include a 500 MW deal with Oklo and a pre-order with Stellaria for 500 MWe, underscoring its focus on sustainable energy for data centers.
