Bulgaria’s Blue Bird Energy and Poland’s Synthos Green Energy (SGE) have signed a letter of intent to establish a joint venture aimed at building a fleet of up to six BWRX-300 small modular reactors (SMRs) in Bulgaria.

SGE, a co-investor in the standard design for the BWRX-300, said in a statement the project will bring Bulgaria zero-emission, affordable, baseload electricity to power industry, support AI and other data centres, and decarbonise district heating.

The BWRX-300, designed by US company GE Vernova Hitachi (GVH) is the most commercially advanced SMR on the market today, SGE said. The first of the 300-MW plants is under construction at the Darlington nuclear power station site in Ontario, Canada.