UK, which will be plant's majority owner, also selected Rolls-Royce SMR as preferred bidder to build small modular reactors at major nuclear power sites and elsewhere.
Project owner Electricité de France now expects to complete the project between 2029 and 2031 and estimates its cost at between $39 billion and $43 billion.
U.S. developer TerraPower's natrium design is not among those of U.S., British and French developers selected for next phase of fast-track competition.