Power Supply

Clean, renewable power... Our future includes a diversified mix of green resources with an eye on our environment.

Currently, most of our power is purchased from the Bonneville Power Administration (BPA), and most of BPA’s power is generated by dams built by the federal government throughout the Pacific Northwest — primarily on the Columbia and Snake rivers.

We are also actively researching and developing other sources of power in an effort to create a more balanced mix of energy sources and help reduce our dependence on energy from BPA. These efforts include our current power sources (hydroelectric, biomass, wind, and landfill gas) as well as those in development (tidal and geothermal). You can also learn more about what the Snohomish County PUD is doing to meet future growth and invest in renewable energy sources in our Integrated Resource Plan.

View a map of our renewable resources.

Featured Video: PUD Tidal


When asked about how “important” it is in general that a utility invests in renewable energy sources, our customers rated this factor 8.25 on a 0 to 10 scale.

When asked if “committed to protecting Snohomish County’s environmentdescribes Snohomish PUD, our customers rated us 8.35 on a 0 to 10 scale.

For more details on this research, click here.

Our Energy Sources:

Washington state law requires utilities to publish their fuel mix for customers. The chart below indicates the types of fuel sources the PUD used during 2013:

Coal Generation1, 2 2%
Hydroelectric Generation 86%
Natural Gas Generation1, 2 <1%
Nuclear Generation1 10%
Wind Generation 1%
Other Generation3 <1%
Total 100%

Based on data from the state of Washington as of 12/31/13 (year-end figures updated each summer of the following year).

1BPA-supplied.
2The PUD does not have coal or natural gas resources in its power supply portfolio. It does make market purchases to balance or match its loads and resources. The state requires the PUD to assume that a portion of these market purchases are attributed to coal even though the utility intentionally strives to avoid purchases from carbon-emitting resources.
3Includes biomass, landfill gas, petroleum and waste.

A portion of the PUD's environmental attributes from its renewable resources have been sold to fund the utility's renewable energy and R&D projects.