High-voltage substation construction and transformer work across Oregon. Here is the grid ESS operates in.
Hydroelectric power is Oregon's largest electricity source, supplying about 41 percent of in-state net generation in 2024, much of it from federal dams on the Columbia River such as The Dalles and John Day. Natural gas and wind are the next largest sources, at roughly 20 percent and 15 percent respectively, and renewable resources together provide around 62 percent of the state's generation. Oregon retired its last coal-fired power plant, Boardman, in 2020.
Integrating growing wind and solar generation strains existing transmission, and Bonneville Power Administration lines that carry much of the region's power face congestion. Wildfire risk has become a major concern, with PacifiCorp incurring more than a billion dollars in liability tied to the 2020 Labor Day fires. Oregon's heavy reliance on hydropower also exposes the grid to year-to-year variation in output driven by drought and snowpack conditions.
Shown as regional context, the major electric utilities and grid organizations operating in Oregon. ESS builds substations and installs EHV apparatus across the western grid and has mobilized wherever the work is since 1978.
Tell us the voltage class, the site, and the timeline. ESS mobilizes across the West.
Contact Us →