Facility head: 385.5 metres
Year of service: 1985
Plant capacity: 127 megawatts (MW)
Annual energy: 680 gigawatt hours (GWh)
The Cat Arm Generating Station is located on the Northern Peninsula and makes use of 380.5 m of head between the reservoir and White Bay. Each of the two units operates with a rated flow of 20 m3/s to generate a total 127 MW of electrical power with an average annual production of 680 GWh. The two 63.5 MW units, equipped with Pelton turbines, were first synchronized in 1985.