The Site C Dam is a hydroelectric dam currently under construction on the Peace River, 14 kilometers southwest of Fort St. John in northeastern British Columbia, Canada. It is located approximately 80 kilometers downstream from the W. A. C. Bennett Dam. When completed in 2025, it will become the fourth largest producer of hydroelectricity in British C…The Site C Dam is a hydroelectric dam currently under construction on the Peace River, 14 kilometers southwest of Fort St. John in northeastern British Columbia, Canada. It is located approximately 80 kilometers downstream from the W. A. C. Bennett Dam. When completed in 2025, it will become the fourth largest producer of hydroelectricity in British Columbia, with an expected capacity of 1,100 MW and an expected annual output of 4,600 GWh of electricity.