Ontario Power Generation DeCew II Generating Station Installs Hydro-OpticTM UV System to Mitigate Invasive Mussels

The Ontario Power Generation (OPG) DeCew II Generating Station (NF23) is a hydroelectric facility with a nameplate capacity of 144 megawatts. Following the spread of zebra mussels to the Great Lakes in 1988, OPG installed chlorination systems in the early 1990s to mitigate their threat. However, new organizational environmental policies resulted in OPG’s evaluation of environmentally friendly methods of controlling invasive mussels that do not expose fish, plants and other aquatic life to hazardous chemicals. Additionally, OPG wanted to reduce the hazards of chemical exposure to its staff.