Kemmerer HP Replacement Project

The Northwest Pipeline system has changed significantly since its beginnings more than 60 years ago. Today, the pipeline is a primary artery for the transmission of natural gas to the Pacific Northwest and Intermountain Region. What began as a 1,500-mile pipeline is now a 4,000-mile bi-directional transmission system crossing the states of Washington, Oregon, Idaho, Wyoming, Utah and Colorado. Northwest’s bi-directional system provides access to Alberta, British Columbia, Rocky Mountain and San Juan Basin gas supplies.

In our commitment to reducing emissions and promoting a cleaner environment, Williams will replace four legacy reciprocating engine compressors and one legacy turbine-driven compressor with modern, low NOx-emitting, natural gas-fired turbine compressors in Kemmerer, Wyoming. This project will be regulated by the Federal Energy Regulatory Commission (FERC) under the 7(c) application filing process, to ensure thorough consultation with state, local, and federal agencies, and community stakeholders. Once approved by FERC, the Kemmerer HP Replacement project will reduce NOx emissions by 99% and potential methane emissions by 94% by the 4th quarter of 2027.