Environmental Review and Permitting

PSE is committed to minimizing environmental effects that can result from our construction, operation and maintenance of electric transmission lines. When effects cannot be avoided, PSE provides appropriate restoration or mitigation.

We will use the following standards to guide our practices for protecting the environment. We will:

  • Strive to continuously improve our performance
  • Integrate environmental and economic considerations into our project planning and development
  • Ensure that the potential environmental effects of the project are effectively identified, assessed, minimized and managed
  • Be an environmentally responsible neighbor in the communities we serve 

Environmental review

The Energize Eastside project is in the environmental review stage and is undergoing the requirements of the State Environmental Policy Act (SEPA). The City of Bellevue is leading the environmental review process in cooperation with Kirkland, Newcastle, Redmond and Renton, and includes preparation of an Environmental Impact Statement (EIS). The EIS provides an unbiased discussion of significant environmental impacts, reasonable alternatives, and mitigation measures that would avoid or minimize adverse impacts. This process includes opportunities for public comment. 

The City of Bellevue is reviewing comments received on the Phase 2 Draft EIS. The next step in the EIS process is the preparation of the Final EIS, which is anticipated for publication in early 2018. For more information on the EIS and opportunities for public comment, visit EnergizeEastsideEIS.org.

Additional information about the SEPA process is available in the Washington State Department of Ecology’s SEPA fact sheet.


In fall 2017, PSE submitted permit applications for south Bellevue and Newcastle. Permit applications for the rest of the southern portion of the project in Renton will be submitted later this fall. We anticipate submitting permits for the northern portion of the project in Bellevue and Redmond in late 2017 – early 2018.

PSE’s plan is to build and energize the new Richards Creek substation in Bellevue and upgrade the transmission lines in south Bellevue, Newcastle, and Renton by summer 2018. We need to build Energize Eastside in two construction phases to keep the backbone of the existing transmission system online and serving customers. By having the southern portion in service by next summer, we can avoid the need for rolling blackout plans. Once we’ve energized the southern portion of the project, we will begin work on the northern portion.