In Depth

This page includes downloads with more detailed information about the Cascade Renewable Transmission Project as well as links to relevant studies and other data demonstrating renewable energy needs driven by load growth and public policy requirements and how the Project will help meet those needs. New informational resources will be added as they become available.

Project Overview

Download a description of Cascade Project’s innovative plan to connect the abundant clean energy resources located east of the Cascades with load centers in Oregon and Washington.

Cascade Renewable Transmission OR EFSC NOI

On March 7, 2023, Cascade Renewable Transmission filed a Notice of Intent to File an Application for a Site Certificate (NOI) with the Energy Facility Siting Council (EFSC) of the Oregon Department of Energy.

Cascade Renewable Economic Study

Study by Energy GPS Consulting LLC, analyzes the costs and benefits of the Cascade Renewable Transmission Project, taking into account legislation in Washington and Oregon requiring 100% clean energy retail sales by 2045 in Washington, and 100% clean energy generation by 2040 in Oregon.

Why Is It So Hard To Build New Transmission Lines?

Sightline reporter Emily Moore looks at the major challenges — planning, permitting, and paying for it — to building out the transmission lines needed to transition to a cleaner energy future.

A Monumental Transmission Challenge Threatens PNW Climate Goals, Economic Growth

Portland Business Journals’ Pete Danko reports on local impacts of rising electricity demand and U.S. Department of Energy Analysis forecasts of up to 56% more transmission capacity by 2040.

NW Data Centers’ Electricity Use Could Double, Imperiling Climate Goals

The Oregonian’s Mike Rogoway reports on new forecasts that data centers proliferating across Oregon could consume dramatically more electricity than regional utilities and power planners had anticipated.

Transmission Corridors Working Group Final Report

The 2022 Final Report of the Washington Transmission Corridors Working Group notes that key stakeholders believe the state currently lacks sufficient transmission infrastructure to meet the states 2030 targets for renewable energy.

Future Northwest Capacity Shortages

Future Northwest Capacity Shortages

Former BPA administrator Randy Hardy’s Capacity Shortage Paper warns that recent developments will have significant impacts on the Pacific Northwest resource capacity outlook, foreshadowing an impending capacity shortage in Pacific Northwest with westside consequences.

Northwest States Need to Build New Power Lines, Fast

An October 2022 article published by Sightline Institute reports that Northwest states’ climate ambitions may suffer defeat due to a lack of enough high-voltage power lines.

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