Turbine passage


Installation of new turbines at Wanapum Dam upgrades the 50-year-old hydropower plant. The turbine technology was designed through a multi-year research and development program funded by the hydropower industry and the U.S. Department of Energy. The installation and operation of these turbines represents the first commercial application of this technology.

Number of turbines 10
Water use efficiency Improvement of 3%
Power rating 150,000 horsepower, or 12% increase in maximum generation capacity on a per unit basis
Construction costs $197 million
Construction completion 2013
Generator upgrade All 10 generators at Wanapum Dam will be replaced by 2018 for $161 million

Priest Rapids

We are exploring the potential for improvements at Priest Rapids Dam.

Number of turbines 10
Water use efficiency To be determined
Power rating To be determined