Earlier, Hydro Development has applied with FERC for a preliminary permit with a term of 36 months for the proposed Cascade Creek hydroelectric plant, which will feature three turbine generator units totalling around 70MW capacity and generate an estimated 200GWh of electricity annually.

The proposal will also see construction of a lake siphon at Swan Lake, with a gatehouse and valve entry to an approximately three mile long power conduit including a tunnel complex of horizontal and vertical shafts, and a buried penstock.

The proposal will also include a 138kV transmission line that would extend approximately 18.7 miles from the powerhouse to an interconnection point near Petersburg.