Nguyen (ComEd witness)

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Illinois regulators approve ComEd's underground transmission ring near O'Hare

Testified that GRIT is needed to head off thermal violations as three large-load customers connect

ComEd won Illinois Commerce Commission approval on Oct. 22 to bury four high-voltage transmission lines and add a substation near O'Hare. The $319 million set forms a ring linking three substations in Elk Grove Village, Wood Dale and Bensenville, so operators can reroute power when a line fails.

Updated Oct 25