PSE Completes Expansion of Jackson Prairie Natural Gas Storage Facility

Puget Sound Energy has completed the $44 million expansion of the Jackson Prairie natural gas storage facility in Lewis County in State of Washington, enabling it to now meet one-fourth of the region’s peak wintertime demand for natural gas.

The project’s completion allows the Jackson Prairie underground natural gas storage facility to accommodate the peak daily natural gas demand of 1.2 million homes across the US Northwest. That represents a 35% increase in the facility’s natural gas-withdrawal capacity, from 850 million cubic feet of natural gas per day to 1.15 billion cubic feet per day.

Kimberly Harris, executive vice president and chief resource officer of Puget Sound Energy (PSE), said: “The Jackson Prairie expansion helps ensure that our customers will have reliable service on even the coldest winter days.

“The existing natural gas transportation system, on its own, simply cannot deliver enough natural gas from Canada and the Rockies to meet our region’s peak wintertime daily demands. This expansion lets us store and withdraw significantly more natural gas to supplement the regional pipeline system and keep people’s homes warm.”