Overview

Cascade Renewable Transmission Project is an underwater and underground High Voltage Direct Current (HVDC) transmission system proposed for the Pacific Northwest, capable of delivering 1,100 MW of clean, renewable energy from east of the Cascade Mountain Range to electricity consumers west of the Cascades.

The Project starts in The Dalles, Oregon and travels approximately 100 miles west to the Portland area, with interconnection points planned at existing substations. For the most part, the cable will be installed under the Columbia River, taking care not to disturb sensitive river habitats or existing river uses. Between the river and the interconnection points, there will be short stretches of line buried underground. In addition, the cable will exit the river for about 7 miles to bypass the Bonneville Dam. Buried underwater, and underground, Cascade will have no visual impact and will be protected from severe weather events, such as wildfires, which pose a significant reliability threat to the region.

Sun2o is co-developing the Project with PowerBridge, LLC. PowerBridge has extensive, specialized expertise in underwater transmission including leading the permitting, financing, constructing, and operations of the Hudson and Neptune transmission projects in the New York Metropolitan Area.

Learn more about the Cascade Project by visiting the project website www.cascaderenewable.com.