SANDIA AND ELEMENTAL NUCLEAR TO BUILD SCO2 GENERATORS FOR ON-SITE DATA CENTER POWER

Summary from the TLDR Hardware newsletter

Sandia National Laboratories and Elemental Nuclear Energy are building supercritical carbon dioxide (sCO2) Brayton Cycle generators, which use CO2 held in a state with properties of both a liquid and a gas as the working fluid instead of steam, letting the closed-loop system convert heat to power more compactly than a conventional steam turbine. The first target is a 1-megawatt system running on natural gas and waste heat aimed at small modular data centers and remote military sites, with commercial deliveries planned for 2028.