SMRs are a class of reactors with a power capacity of up to 300 megawatts per unit, a third of the size of a full reactor Velan Inc., a leading manufacturer of industrial valves, plans to build a new manufacturing facility in Durham Region in the eastern end of the Greater Toronto Area to support SMR technologies. On Wednesday, the Ontario government announced that GE Vernova Hitachi Nuclear Energy (GVH) and Montreal-based Velan Inc.