High Temperature Superconductor—TSS114 Northwest Substation
Step into the future of grid innovation at ComEd’s TSS114 Northwest Substation, home to the only in-service, active superconductor in the United States. This facility showcases ComEd’s pioneering collaboration with American Superconductor (AMSC) to pilot a High Temperature Superconductor (HTS) system designed to enhance grid reliability and resiliency.
Technology Spotlight: High Temperature Superconductivity
- Superconducting Bus Tie: Operating at 12kV and 3000 amps, the HTS system functions as a bus tie between two terminals, enabling an N-2 contingency configuration that significantly boosts system redundancy.
- Liquid Nitrogen Cooling: The system uses liquid nitrogen to maintain superconductivity, allowing for high-capacity power transfer with minimal energy loss.
- Strategic Location: The Northwest Substation was selected for its similarity to the Chicago Business District environment, making it an ideal testbed for urban grid applications.
Tour Maximum Capacity: 20
Cost: $60
Requirements/Restrictions:
- Closed-toe shoes; no heels.
- Fire-retardant clothing. Hard hats and safety glasses will be provided for visitors.
Security Check: Yes
Pick-Up/Drop-Off Location: McCormick Place
Event registration is required to sign up for a technical tour. Secure your spot when you register for 2026 IEEE PES T&D.