Biglow Canyon Wind Farm covers 25,000 acres (10,000 ha) in the Columbia River Gorge.
In 2005, Orion Energy announced plans to develop a 450-megawatt wind farm with 225 turbines at Biglow Canyon in the Columbia River Gorge, at the time the largest project of its kind in Oregon.
[2] Portland General Electric (PGE) acquired Orion's development right to the $200 million project in 2006.
In the middle of October 2007, ten Vestas V82 wind turbines were energized to produce the first electricity at Biglow.
[8] The final phase was completed in September 2010, with the project totaling 217 turbines at a cost $1 billion.
The turbines may be aligned in up to 30 corridors 500 feet (150 m) wide on private farmland leased from the appropriate landowners.
Exceptions are made for aerial cables to span terrain such as canyons, wetlands, and cultivated areas to protect the environment.
It has capacity for an expected additional 450 MW from two other proposed wind farms in Sherman County.
[13] The substation may be up to 6 acres (2.4 ha) including transformers, switching equipment, maintenance shops, control room, and offices.