Schweitzer Engineering Laboratories (SEL), an electric power systems manufacturer, is undertaking a major expansion of its U.S. manufacturing operations, investing more than $500 million in new facilities, equipment and production capacity across four states.
The investments, taking place between 2026 and 2028 across Idaho, Washington, Indiana and North Carolina, include new electronic device manufacturing facilities in Moscow, Nampa, and Post Falls, Idaho; manufacturing expansions in Pullman, Washington, and West Lafayette, Indiana; and additional panel assembly space in Charlotte, North Carolina.
“These projects will expand our manufacturing footprint, strengthen our ability to serve customers worldwide and create new career opportunities in the communities where we operate,” said SEL President Dave Whitehead in a statement. “They also reflect our long-term commitment to American manufacturing, innovation and serving customers for decades to come.”
The SEL manufacturing expansion includes the following projects:
Idaho
Moscow: Construction of a 305,000-square-foot electronic device manufacturing facility. The project represents an investment of more than $70 million and is expected to be operational by the end of 2027.
Nampa: Purchase of a 103,000-square-foot facility that will be converted into an electronic device manufacturing facility. This $150 million investment in property, equipment and people will initially employ 250. Operations are expected to begin in early 2027.
Post Falls: Purchase of a large commercial building that will be converted into an electronic device manufacturing facility. This $150 million investment in property, equipment and people will initially employ 250. Operations are expected to begin in late 2027.
Washington
Pullman: SEL purchased and is converting a 135,810-square-foot facility and surrounding 11.5-acre site into a modern manufacturing operation. The facility is expected to begin operations in early 2027 and will support approximately 300 employees.
Indiana
West Lafayette: A $25 million expansion of board assembly operations will increase production capacity by more than 35%. The project is expected to be completed in 2027.
North Carolina
Charlotte: A $15 million project will add more than 50,000 square feet of custom panel assembly space to support continued growth. The expansion is expected to be completed in 2027.
In addition to new facilities, SEL is investing more than $100 million in high-efficiency manufacturing equipment. The investment will support the addition of more than 600 assemblers and new production shifts in Pullman and Lewiston, increasing electronic device output by an estimated 40% to 60%.
