Our Nation’s Fragile Grid

In the 2025 report card from the American Society of Civil Engineers, the United States scored a D+ in energy infrastructure, indicating a system that is on the brink of failure. Even more alarming, standards and practices are readily available to help build a more resilient T&D network, yet often not required – ultimately leading to system failures.

Recent federal initiatives, such as the Infrastructure Investment and Jobs Act and the Grid Resilience and Innovation Partnerships Program, are making strides in strengthening the grid.  These efforts include replacing utility poles with a more durable material to withstand extreme storms, winds, and temperatures. But how does choosing the right material ultimately affect the strength of the grid? Selecting the right pole material plays a critical role in reducing future damage, shortening restoration times, and reducing maintenance needs.

When evaluating potential options, utilities come across two popular choices – ductile iron and spun concrete. But knowing the differences between the two is critical to choosing the right material for your next project.