High Quality Content by WIKIPEDIA articles! The Lower Churchill Project is a planned hydroelectric project in Labrador, Canada, to develop the remaining 35 per cent of the Churchill River that has not already been developed by the Churchill Falls Generating Station. The Lower Churchill`s two installations at Gull Island and Muskrat Falls will have a combined capacity of over 3,074 MW and be able to provide 16.7 Terawatt hours of electricity per year.