Ameren is taking another step toward improving the reliability of its energy service by testing advanced dynamic line rating (DLR) technology across parts of its existing transmission network. This technology gives grid operators real-time visibility into highly localized weather conditions and the exact operating status of transmission lines. With this level of insight, operators can safely move electricity to where it is most needed, especially during periods of high demand or shifting grid conditions. By tapping into the additional capacity that already exists on some of the busiest transmission lines, DLR can help strengthen system reliability, support safer day-to-day operations, and reduce overall costs. These improvements translate directly into better service for customers across the region.
According to Shawn Schukar, strategic use of dynamic line ratings represents one of the most forward-leaning grid-enhancing technologies being deployed in the United States. With energy demand rising quickly, he emphasized that DLR can serve as a valuable complement to ongoing efforts to build stronger transmission infrastructure. It can also help utilities pinpoint where new transmission investments are needed most and guide smarter long-term planning. As part of this pilot effort, Ameren is working with Heimdall Power to install 30 of the company’s sensor units—known as Neurons™—on selected transmission lines. These devices attach directly to the lines and continuously monitor real-time conditions. Ameren chose installation locations that experience some of the highest congestion on its system.
Congestion occurs when the amount of electricity that customers need to move through a line exceeds the line’s standard capacity rating. Robert Clausius noted that the real-time visibility provided by these sensors may be particularly beneficial on days with cold or windy weather. Such conditions naturally cool down transmission lines, allowing them to carry more energy safely. With accurate, moment-to-moment data, Ameren can more effectively and reliably redirect electricity across the grid, ensuring it reaches where it is needed most.
A transmission line’s capacity is influenced by several environmental factors, including temperature, sunlight, ice, and wind. Without live data, utilities must depend on conservative, predetermined assumptions to set safe operating limits. Heimdall Power’s technology has already shown in practical applications that it can help utilities maximize the true capacity of their lines while maintaining safe and dependable operation. Clausius added that this initiative supports Ameren’s broader goal of building a smarter, more efficient grid.
Heimdall Power’s systems have been successfully deployed in multiple countries, giving Ameren confidence that the technology could unlock meaningful benefits—improving safety, strengthening reliability, and helping customers save money by optimizing existing assets instead of relying solely on new infrastructure. The first 15 Neuron sensors were installed in December 2025, and the remaining 15 are expected to be deployed later this year. As the pilot progresses and more data is collected, Ameren will evaluate future opportunities for wider use of DLR technology across its system.






















