FERC approves permit for 70-MW Alaska hydro project

The Federal Energy Regulatory Commission on Aug. 29 approved a preliminary permit for a 70-MW hydroelectric project in Alaska of Hydro Development LLC.

In February 2012, Hydro Development filed an application for a preliminary permit to study the feasibility of the Cascade Creek Hydroelectric Project, to be located on Swan Lake and Cascade Creek, near Petersburg, Alaska.

A preliminary permit gives a party a 36-month exclusive period to look at project feasibility, with a license application then needed if the decision is to pursue the project.

The project would include: the existing Swan Lake with surface area of 574 acres and useable storage capacity of 22,500 acre-feet; a 140-foot-long, 80-foot-wide concrete and metal powerhouse with three 23.3-MW vertical-shaft Pelton turbine units having a total installed capacity of 70 MW; and a 18.7-mile-long, 138-kV transmission line consisting of 10.5 miles of buried and/or submarine transmission line interconnecting with the existing Scow Bay substation.

The estimated annual generation of the Cascade Creek Project would be 200 gigawatt-hours.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.