Crews have started work on a $20 million package of electrical upgrades around Granite City, with Ameren Illinois building a new switching station near the Granite City Works steel plant, upgrading two substations and adding a new power line. The construction, which began last month, is expected to take at least a year to complete, according to a company spokesperson.
The project is part of a broader push by the utility to reduce outages and strengthen the grid during severe weather, as reported by St. Louis Public Radio. Langston Rose, director of electric operations for Ameren Illinois' west region, said the projects respond to more frequent tornadoes and severe weather throughout the state. The upgrades are meant to help the grid withstand and recover faster from storms, creating additional pathways for restoring power so crews can respond more efficiently when outages happen.
A Tornado That Knocked Out Power for Thousands
The timing follows a tornado that left thousands of people in the area without power, according to KSDK, which reported the Granite City upgrade comes more than a year after that outage. The station's report did not specify the tornado's exact date, location or damage toll.
Ameren says its broader Metro East reliability campaign includes investments in smart-grid technology, storm hardening and underground cable upgrades, per Ameren Illinois.
Smart Switches and Storm-Hardened Lines
Those efforts include installing automated switches, sensors and smart meters designed to catch problems before they cause widespread blackouts. The utility says more than 2,000 smart switches now monitor its grid around the clock, automatically isolating outages and rerouting power, and that these devices have prevented more than 330,000 customer outages since 2021. Ameren also reports it has storm-hardened more than 300 miles of overhead lines and is upgrading aging underground cable with added protective conduit to help prevent future outages.
Ameren also finished a separate transmission project in LaSalle County earlier this year intended to create additional pathways for electricity to flow into that region, according to SolarQuarter.
A Record-Breaking Year for Illinois Tornadoes
The Granite City investment lands amid what has been an extraordinarily active severe-weather year across Illinois. The state typically averages about 50 tornadoes annually, but 2026 numbers have run far higher, though exact counts vary depending on the source and reporting date. The Illinois State Climatologist put the 2026 total at 210 tornadoes by the start of September, a new annual state record, while the Chicago Sun-Times reported 207 tornadoes so far that year with additional assessments still possible.
The state's previous annual tornado record was 142, set in 2024, according to the Illinois State Climatologist. The climatologist's office also reported that National Weather Service offices serving Illinois issued more than 1,300 severe thunderstorm and tornado warnings through early September.
What's Driving the Surge
Researchers caution that the role of climate change in these trends is not settled. The Illinois State Climatologist's office has reported more tornado outbreaks and very large hail in the state in recent decades but says there remains uncertainty about how much climate change is contributing to those patterns. The Sun-Times likewise reported that experts don't see a clear connection between climate change and a higher overall number of tornadoes, though it may be shifting where and when tornadoes form and the scale of outbreaks.
For Granite City residents, the immediate story is closer to home: a new switching station, upgraded substations and fresh power lines meant to keep the lights on the next time severe weather rolls through the Metro East.
