The Federal Energy Regulatory Commission said in a July 8 notice that it intends to write an environmental impact statement on an October 2015 original major license application from Swan Lake North Hydro LLC for the Swan Lake North Pumped Storage Hydroelectric Project.
This project would be located about 11 miles northeast of the city of Klamath Falls in Klamath County, Oregon. The proposed project would include about 730 acres of federal land managed by the U.S. Bureau of Land Management and the U.S. Bureau of Reclamation.
The applicant contact is: Joe Eberhardt, EDF Renewable Energy, 1000 SW Broadway Ave., Ste. 1800, Portland, OR 97205, phone (503) 889-3838.
The deadline for filing scoping comments about what should be covered in the EIS is Sept. 9. The applicant and FERC staff will conduct a project Environmental Site Review beginning at 9:00 a.m. on Aug. 9.
The proposed project would be a closed-loop system using groundwater for initial fill and consist of new facilities including: an earthen embankment forming a geomembrane-lined upper reservoir; an earthen embankment forming a geomembrane-lined lower reservoir; a 500-foot-long, rip-rap lined trapezoidal spillway built into the crest of each embankment; a 0.5-percent slope perforated polyvinyl chloride tube of varying diameter and accompanying optical fiber drainage system designed to detect, collect, and monitor water leakage from the reservoirs; a 25-inch-diameter bottom outlet with manual valve for gravitational dewatering of the lower reservoir; an upper intake consisting of a bell mouth, 38.6-foot-wide by 29.8-foot-long inclined screen, head gate, and 13.8-foot-diameter foundational steel pipe; a 36.5-foot-diameter, 9,655-foot-long steel high-pressure penstock from the upper reservoir to the powerhouse that is predominantly above ground; three 9.8-foot-diameter, 1,430-foot-long steel low-pressure penstocks from the lower reservoir to the powerhouse that are predominantly above ground; a partially-buried powerhouse with three 131.1-MW reversible pump-turbine units with a total installed capacity of 393.3 MW; a fenced substation next to the powerhouse; and a 32.8 mile, 230-kV above-ground transmission line interconnecting to an existing non-project substation.
The project would generate about 1,187 gigawatt-hours annually.