The Wolfspeed John Palmour Manufacturing Center is a silicon carbide materials factory at 1000 Carolina Core Parkway in Siler City, Chatham County, North Carolina, on approximately 445 acres. Wolfspeed's air permit application cites the large power demand of the project and proposes eleven diesel emergency generators for power outages. The Chatham-Siler City site lists an electric network of 150MW with a path to 300MW by 2030, supplied by Duke Energy or Randolph Electric.

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Overview

The JP will primarily produce 200mm silicon carbide wafers and represents a total investment of $5 billion; Wolfspeed topped out the facility on March 26, 2024. Wolfspeed reported that production readiness was attained at the Siler City facility in late fiscal 2025.

Profile

Electricity and grid: Wolfspeed's air permit review says that due to the large power demand of the project, eleven diesel-fired emergency generators of 2,923 horsepower each will be installed to supply emergency power during outages. The Chatham-Siler City Advanced Manufacturing Site lists an electric network of 150MW with a path to 300MW by 2030, with Duke Energy or Randolph Electric as provider. Duke Energy's 2023 Carolinas resource plan names Wolfspeed silicon carbide material manufacturing among additions to its Carolinas service territory.

Ownership and site: The facility owner is registered as Wolfspeed, Inc., and the facility is located at 1000 Carolina Core Parkway on approximately 445 acres. The air-quality permit allows Wolfspeed to construct and operate a new semiconductor manufacturing plant in Chatham County.