Modern transmission upgrades aren’t just about advanced conductors—they hinge on how those conductors are connected. As composite core technologies redefine capacity and efficiency, traditional connector assumptions can quietly undermine long-term reliability. This piece highlights why engineered interfaces, purpose-built terminations, and system-level thinking are critical for durable grid performance. For utilities navigating rising demand, renewables, and extreme conditions, understanding connector design isn’t optional—it’s essential to ensuring consistent, decades-long reliability.