Planning ahead with seismic upgrades

Our goal: Increase resiliency and reliability in the face of an earthquake.


Shake, rattle and we’ll still be ready to roll. That’s the aim behind the seismic upgrades we’ve been making at PGE.

Below are just a few of the steps we’re taking to strengthen our energy generation, transmission and distribution facilities to make them more resilient and better able to withstand an earthquake.

We have already:

  • Reinforced site foundations at our Port Westward generation plants with a massive network of columns to minimize damage from liquefaction (when the ground becomes fluid-like during an earthquake) in the upper 40 feet of ground.
  • Anchored down all substation transformers for additional stability during earthquakes.

Now we’re working on these projects:

  • Restructuring powerhouses (the buildings that house the generators) at our Clackamas River hydropower plants to meet seismic standards. The dams at these plants were upgraded in the 1990s.
  • Retrofitting all of our facilities where line crew trucks and equipment are housed so the buildings better withstand shaking.

Are you prepared?

We want you to be safe, too. We encourage all of our customers to be prepared with an emergency plan and supplies in case our area is hit by an earthquake or other disaster. The American Red Cross is a great place to start.