The power station is located above ground at the foot of the concrete arched Clark Dam across the River Derwent that forms Lake King William.

[2][3] The power station was commissioned in 1951 by the Hydro Electric Corporation (TAS) and officially opened on 22 November 1952.

The station building houses a single alternator and the turbine has a fully embedded spiral casing with water flow controlled via a butterfly type valve.

It also houses a 125 kVA diesel generator for alternate station services supply when needed.

The station output, estimated to be 684 gigawatt-hours (2,460 TJ) annually,[1] is fed to TasNetworks' transmission grid via an 11 kV/110 kV three-phase English Electric generator transformer to the outdoor switchyard.