The Copper Valley Electric Association, which is planning an imminent construction start on a 6.5-MW hydroelectric project in Alaska, applied April 30 at the Federal Energy Regulatory Commission for a license amendment related to the project.
The 6.5-MW Allison Creek Hydroelectric Project would be a run-of-river hydroelectric facility located on the south side of Port Valdez, near Alyeska’s Valdez Marine Terminal, which serves the Trans-Alaska Pipeline. FERC issued a license for this project in August 2013.
This amendment is being submitted for: the routing of a 25-kV transmission line south and uphill from the existing Trans-Alaska Pipeline System (TAPS) right-of-way taking advantage of a section line utility easement: the powerhouse footprint and turbine/generator unit; and the angle and length of the tailrace from the powerhouse to Allison Creek.
There would be a 3.8-mile-long 25-kV transmission line to the Copper Valley switching station near the Petro Star facility along Dayville Road. The turbine in the powerhouse will be a horizontal shaft two-jet Pelton machine with deflectors, inlet bifurcation and main inlet shutoff ball valve with emergency counterweight closure.
Copper Valley said it plans to clear the areas for the transmission line and the powerhouse in the spring and summer of 2014, with transmission line installation to begin in 2014 and be completed in 2015. The powerhouse and tailrace foundation work would also begin in 2014 and be completed in 2015. The association asked FERC for a quick approval of the amendment so this schedule won’t be impacted.