- US: Has the largest number of SMR design concepts in development (22). These include pressurized water reactors (PWRs), high-temperature gas reactors (HTGRs), and liquid metal-cooled reactors (LMRs). Examples include NuScale Power's VOYGR (PWR), GE Hitachi's BWRX-300 (Boiling Water Reactor), and Westinghouse's eVinci microreactor.
- Russia: Emphasizes a portfolio approach, developing various designs for diverse applications. This includes the RITM series (PWRs based on icebreaker technology), Shelf-M reactors for off-grid installations, and the SVBR-100 (Lead-Bismuth Fast Reactor). Their operational Akademik Lomonosov floating power plant utilizes two 35 MW KLT-40S reactors.
- China: Focuses on pressurized water reactors (PWRs) like the ACP100 Linglong One and high-temperature gas-cooled reactors (HTGRs) like the HTR-PM. The HTR-PM, which went online in 2023, is a 150 MW HTGR.
- copied from google