Warm Springs Power Pathway

The Warm Springs Power Pathway project, jointly coordinated by the Confederated Tribes of Warm Springs and Portland General Electric, will upgrade the existing Bethel-Round Butte transmission line, expanding capacity to address critical transmission constraints and deliver more electricity to Oregon’s densely populated areas west of the Cascade Mountain Range. This line is a crucial artery in the region’s transmission system and a key investment in national security and American prosperity. 

The Warm Springs Power Pathway delivers power generated from the Pelton Round Butte Hydroelectric project that originates on the Warm Springs Reservation, and spans nearly 100 miles from Madras to Salem. A 31-mile section of the line passes through the Warm Springs Reservation.

The Warm Springs Power Pathway delivers power generated from the Pelton Round Butte Hydroelectric project that originates on the Warm Springs Reservation, and spans nearly 100 miles from Madras to Salem. A 31-mile section of the line passes through the Warm Springs Reservation.

The Warm Springs Power Pathway delivers power generated from the Pelton Round Butte Hydroelectric project to the west side of the Cascade Mountains.

It originates on the Warm Springs Reservation, and spans nearly 100 miles between Madras and Salem in Oregon. A 31-mile section of the line passes through the Warm Springs Reservation.

Project Overview

In 2023, the Confederated Tribes of Warm Springs was selected to receive a $250 million Grid Resilience and Innovation Partnerships grant from the U.S. Department of Energy to rebuild the 100-mile, 230 kV line and upgrade it to 500 kV.

This will upgrade a line built in the 1960s to address transmission constraints and increase access to electricity generated east of the Cascade Mountain Range. The upgrade will increase transmission capacity to improve reliability, help meet growing electrical demand and deliver more electricity from Central Oregon to more densely populated areas.

A key element to meeting the regional energy supply needs for communities and businesses, this project will also install new, high-capacity fiber optic cables along the route and provide essential economic opportunity to the Confederated Tribes of Warm Springs.

Warm Springs Power & Water Enterprises General Manager Cathy Ehli introduces the project

Project Benefits

Once complete, it will deliver abundant, reliable American energy to serve our nation’s economic interest and meet customer demand.

It will also:

Increase the power delivered via a crucial artery in the region’s transmission system

Improve Central Oregon’s broadband internet infrastructure

Create an estimated 700 construction jobs over the life of the project

Support growth of high-tech industries, including data centers and artificial intelligence

Improve grid reliability, resilience and security

Upgrade wooden transmission structures to steel

Support tribal sovereignty

Project timeline from 2024 to 2032 showing major phases. Preliminary studies run through 2025. Permit scoping and studies occur from 2025 to 2027, followed by permit application preparation from 2027 to 2028 and permit review from 2028 to 2030. Engineering runs from 2025 to 2030. Construction starts in 2030 and continues through 2032. Community engagement spans 2024 to 2032. Milestones: engineering and field studies begin in 2025, permit applications submitted in 2028, permit decisions in 2030.

Project Timeline

Schedule and scope are subject to change.

Project Timeline

Schedule and scope are subject to change.

Supporting Tribal Sovereignty 

The Warm Springs Power Pathway will expand the Confederated Tribes of Warm Springs’ energy leadership and revenue growth to support government operations like fish reintroduction, natural resource management, housing and social services, education and clean water for its Tribal Nation. 

Watch the video to learn more about the Confederated Tribes of Warm Springs