For the PUD, hydropower is key to reliably meeting community electricity needs and helping both the utility and region transition to a cleaner energy future.
Hydroelectric power accounts for more than 85% of the PUD’s portfolio of generating resources. Contracts for Bonneville Power Administration projects supply most of our hydropower (~75%). PUD’s owned-and-operated resources provide another ~10%; these include the Henry M. Jackson, Woods Creek, Youngs Creek, Calligan Creek, and Hancock Creek hydroelectric projects.
Why hydropower makes sense for the PUD
- Carbon-free generation resource
- Located outside sensitive wild and scenic and wilderness areas
- Abundant source of water in our area to “fuel” generation
- Less variable generation helps planning
- Reservoir systems act as battery, providing power when needed
- Complements intermittent (solar and wind) resources
- Provides multiple uses including flood control, water supply, recreation, fish habitat
- A proven technology with predictable, manageable operating costs
- Have long lives, up to 100 years or more
Hydropower provides essential regional ancillary and reliability services, ensuring regional grid stability and flexibility, such as:
- Regulation and frequency response
- Load-following and flexibility reserve
- Energy imbalance service
- Spinning and supplemental reserve
- Reactive power and voltage support
- Black start (restoration) service
Calligan Creek Hydro
Bonneville Power Administration
Packwood Hydro Project
The PUD has a 20% share, or 2 MW of power on average from the Packwood Hydroelectric Project. This 27.5 MW nameplate capacity hydro resource was developed in 1964 by Energy Northwest and is located 20 miles south of Mount Rainier, in Packwood, Washington.