From Static to Smart: Ameren’s Push to Unlock Grid Capacity in the Midwest

As electricity demand surges across the American Midwest, the pressure on aging transmission infrastructure is becoming impossible to ignore. With increasing timelines and costs of building new lines, utilities are unlocking capacity in new ways.

In this high-pressure energy landscape, Ameren is charting a different course.

The utility, which owns more than 8,400 miles of transmission across Missouri and Illinois, has launched Heimdall Power’s dynamic line rating (DLR) solution in a mission to transform how grid capacity is unlocked.

For Ameren, the potential benefits are significant: increased capacity on constrained lines, improved reliability during peak demand, reduced congestion across the system, and—critically—continued affordability for its 2.5 million customers.

"We are building a smarter energy grid,” said Robert Clausius, senior manager, Transmission Asset and Compliance Management at Ameren. "Heimdall Power's technology has performed successfully around the world.This leads us to believe there's a real opportunity in bringing it to Ameren to strengthen the grid, operate it even safer, and help our customers save money by getting more value out of the assets that we already have."

Ameren will install 30 Neurons across high-congestion areas in Illinois and Missouri, where electricity demand frequently pushes up against traditional, static rating methods.

The rollout is already underway. The first 15 Neurons were installed in December 2025, with the remainder scheduled for deployment later in 2026. The carefully selected deployment locations will serve as testing grounds to evaluate how effectively DLR can ease bottlenecks in real-world conditions.

"Strategic deployments of dynamic line ratings are on the leading edge of grid-enhancing technologies in the United States," said Shawn Schukar, chairman and president of Ameren Transmission Company of Illinois. "When you look at the fast pace of increasing demand for energy in our region, this technology could help be a strong complementary tool as more robust transmission infrastructure is being built. It can also help us better understand where, how and when new transmission infrastructure needs to be built."

As Ameren collects data and assesses if and how DLR can be scaled across its system one thing is already clear: the future of Ameren’s grid may depend as much on intelligence as it does on infrastructure.