Name change for Leadcold

15 August 2023

Swedish company Leadcold has announced that it is changing its name to Blykalla as the company brand, also internationally. “Our previous international brand, Leadcold, will be phased out over the coming months,” the company said. “Blykalla is not only a more differentiated brand, but also a homage to our Swedish background and the decade of research that has been conducted under this name. The meaning is the same: ‘bly’ is the Swedish word for lead, and ‘kalla’ refers to ‘cold’.”

The company is developing the SEALER-55, a lead-cooled fast compact reactor with passive safety. Each reactor will have a 55 MWe capacity, which can be increased by installing multiple units at the same location. The reactor designed with the smallest possible core that can achieve criticality in a fast spectrum using 19.9% enriched nitride fuel. According to the company website, the SEALER reactor is designed to maintain a maximum temperature of the lead coolant below 450°C, making corrosion of fuel cladding and structural materials a manageable phenomenon, even over a life-span of several decades. While the website has details of the overall design, fuel and the safety features, it says nothing about the fast reactor technology.

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