The new facility’s 149 wind turbines will generate enough electricity, on average, to power about 100,000 households.
The wind farm provides more renewable, emissions-free power to Puget Sound Energy’s 1.1 million electric customers.
PSE began construction on the wind facility with the help of lead contractor RES Americas, wind-turbine manufacturer Siemens Energy, and a variety of subcontractors.
Each wind turbine stands 430ft high from its base to the tip of a vertical rotor blade.
The facility’s development and construction, including transmission-network upgrades for connection to the regional power grid, are estimated to cost about $830m.
PSE also partnered with RES on the construction of the utility’s Hopkins Ridge and Wild Horse wind farms.