Juneau Hydropower applies with FERC on 19.8 MW Alaska project

Juneau Hydropower on Oct. 11 filed a successive draft license application and preliminary draft environmental assessment for its 19.8-MW hydro project in Alaska.

Juneau Hydropower said it is making these filings with assurances from regulatory agencies that they would be able to provide preliminary conditioning which would be helpful in preparing for a successful final license application and final PDEA.

The company holds a preliminary permit for the proposed Sweetheart Lake Hydroelectric Project issued on April 11. The proposed project would be located near the City of Juneau located within the City and Borough of Juneau on Sweetheart Lake. It would have an installed capacity of 19.8 MW and would operate as a storage project.

The project would include:

  • the existing Lower Sweetheart Lake, raised from a surface water elevation of 551 feet (MLLW) and a surface area of 1,414 acres to a new minimum surface water elevation of 576 feet (MLLW) and a new surface area of 1,449 acres and a maximum water surface elevation of 636 feet (MLLW) with a surface area of 1,702 acres;
  • a new, roller compact concrete dam 111-foot-high (from the downstream toe to the top of dam) 280-foot-long, 100 foot-thickness at the base constructed at the outlet of Lower Sweetheart Lake;
  • a powerhouse containing three new Francis generating units (6.6 MW each) with a total installed capacity of 19.8 MW; and
  • a new 138-kV transmission line that would be a total of 45,900 feet long (25,700 feet of submarine cable in two segments; 15,400 feet of overhead transmission line on Snettisham Peninsula; and 4,800 feet of buried transmission line in two segments).

The company contact is: Duff Mitchell,
 Vice President and Business Manager, Juneau Hydropower Inc., P.O. Box 22775, 
Juneau, AK 99802,
 (907) 789-2775,
 (907) 375-2973, duff.mitchell@juneauhydro.com.

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.