A new study by LucidCatalyst for the ARPA-E MEITNER program is the first to derive the highest allowable capital cost for advanced reactors across four of the major power markets in the US in 2034. Advanced reactors that cost less than $3,000/kW will be attractive investments, and create the most value for plant owners. The study shows how advanced reactors can complement wind and solar. Together, these technologies drive down costs, reduce emissions, and improve performance in future U.S. electricity grids.