As data centers evolve to meet the demands of AI, high-density computing, and rapid scaling, traditional power distribution methods struggle to keep pace. In a recent Ask the Expert panel hosted by Datacentre Solutions Magazine, experts from Starline and Legrand discussed why track busway systems are becoming the preferred solution for modern data center power infrastructure.

Unlike conventional cabling, track busways offer a modular overhead approach that delivers power directly to IT racks through live tap-off units, simplifying deployment and enabling seamless reconfiguration. Joel Farrington, UK Sales Manager for Legrand Data Center Solutions, explained, "The primary benefits include scalability and a high degree of flexibility in system design. Additionally, the ability to quickly adapt to power demands means busways are critical in modern data center power distribution."

Scaling Up for AI and High-Density Loads 

Recent innovations in busway technology—like Starline’s remote plug-in actuator that enables hands-free plug engagement from outside the incident energy area, along with real-time critical power monitoring—are designed to support environments pushing toward higher compute densities. The latest systems now accommodate up to 1,250 amps, with ongoing research and development to push that limit further. This makes busways ideal for AI workloads requiring significant, stable, and scalable power. 

Track busway is no longer just an alternative; "It's becoming a necessity to use busway systems to meet power demands efficiently," noted Joel. "We're seeing a growing demand for 80A, 125A, and even larger tap-offs to support these high-density racks."

Efficiency and Modularity in Action 

The flexibility of systems like Starline's track busway range allows data centers to install the backbone first and add tap-offs as needed, saving upfront expenditure and eliminating the need for costly rewiring as needs evolve. Rob Hawkins, Senior Applications Engineer, emphasized that when considering installation, labour, and future modifications, track busways prove to be 15–30% more cost-effective than power distribution units (PDUs) and whips. He also stressed the benefit of adding tap-offs as needed, saying, "In contrast, with a traditional PDU and whip setup, you often have to pre-install everything, which locks you into a specific power distribution model."

Supporting Smarter Operations 

In addition to flexibility, overhead busway systems improve airflow, reduce cable clutter, and enhance thermal management. Integrated temperature and load sensors, such as those found in Starline's M70 Critical Power Monitor, provide real-time visibility, helping to prevent hotspots and manage three-phase load balancing more effectively. 

The benefits of busways extend even to smaller data halls or telecom setups. Whether installed overhead or under raised floors, busways streamline cable management and future-proof infrastructure for AC and DC applications. 

In response to the question, "Is the implementation of busways in smaller data centers as efficient as in hyperscale facilities?" JP Burger, Critical Power Sales Director for the UK, stressed, "One misconception we sometimes see is that busways are only for large-scale deployments. But that's not true. With data centers evolving into various shapes and sizes, the key factor is power distribution—not physical footprint. Whether a facility is large or small, busways provide the same advantages in terms of flexibility, efficiency, and scalability."

A Smarter Way Forward

Ultimately, busways are not just a more efficient way to distribute power—they signify a shift in how data centers approach infrastructure agility. With rapid deployment, built-in intelligence, and future-ready modularity, they enable operators to keep pace with a fast-evolving digital landscape. 

Several studies cited during the panel consistently show that busways reduce installation time and labour while improving overall system reliability. As Rob summarized, "These studies consistently show that busways provide a more scalable, cost-effective alternative to traditional cabling." 

In Summary 

As the data center landscape expands, the expert panel's insights reaffirm that track busway technology offers a smarter, more adaptable approach to power distribution—one that meets today's demands while anticipating tomorrow's challenges.