The Lake Margaret Lower Power Scheme was opened in 1931. Showcasing the ingenuity and resourcefulness of the men in charge at the time, it was located downstream from the main power station and utilised water that had already powered the turbines in the main station. It housed a single Boving-Francis type turbine which, whilst having to be manually started, could be remotely controlled from the main power station, demonstrating a unique system that is considered significant in the history of power generation in Tasmania and Australia. The Lower Power Scheme was mothballed in the early 1990s.