French nuclear startup Hexana has raised €25m ($26m) to advance its RNR Sodium advanced reactor technology with the aim of finalising the reactor’s preliminary design phase.

RNR Sodium is a Generation IV, sodium-cooled fast neutron reactor technology designed to produce high-temperature, carbon-free energy with improved fuel recycling and flexible output for heavy industries, Hexana has said.

According to a statement, the financing includes a €15m fundraising round and a €10m grant from Bpifrance Financement through the France 2030 programme for nuclear reactor innovation.