eVinci microreactor
In Development
Westinghouse Electric Company


Overview
Transportable 5 MWe heat-pipe-cooled microreactor with TRISO fuel and no water cooling, designed to run for eight-plus years without refueling — targeting remote communities, mining, industry, data centers, and military installations.
First microreactor developer to complete front-end engineering (FEEED) and win DOE approval of its Preliminary Safety Design Report for the DOME test bed at Idaho National Laboratory, where a fueled test-reactor experiment is slated to begin in 2026. Selected by the US Air Force and Defense Innovation Unit in April 2026 for deployment at Malmstrom Air Force Base, and targeted for a first Canadian commercial deployment with the Saskatchewan Research Council by 2029.