A breakthrough has been reported in the development of supercritical carbon dioxide (sCO2) power cycles, with the STEP demo completing phase 1 of a 10-mw project. The technology, which is considered game-changing, is moving closer to commercialization, with a potential first commercial deployment taking shape. Researchers and organizations, including those at Sandia Lab and NET Power, are making progress in testing and developing the technology, with significant federal funding allocated to support its development.