Supporting sustainable hydropower operation and development in British Columbia through research on fish entrainment and fish responses to gas supersaturation

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In Canada, 60% of electricity generation is from hydroelectric sources. British Columbia in particular has several large watersheds that have been subject to hydropower development, with other large projects under consideration. BC Hydro, the primary hydro utility in the province, has a long tradition of using scientific evidence to guide the siting, development and operations of hydropower facilities. At present BC Hydro is exploring the development of a "mega-project" called the "Site C Clean Energy Project" (Site C) which is a proposed 3rd dam and generating station on the Peace River in BC. Two particular issues that have arisen for Site C are fish entrainment risks (ENT) and elevation of total dissolved gasses (TDG) downstream of the dam and their consequences for fish. BC Hydro has two existing facilities in the Peace River basin - the WAC