The International Energy Agency (IEA) recently released “Building the Future Transmission Grid,” highlighting the urgent need for transmission expansion and modernization to meet growing electricity demand and enable clean energy transitions. The report underscores major bottlenecks, including supply chain constraints, rising material costs, and long project delays.
Traditional transmission expansion is struggling to keep pace, with 1,650 GW of renewable energy projects awaiting grid connections and investment needing to more than double by the 2030s to meet climate and electrification goals. Meanwhile, supply chain issues—such as transformer lead times reaching four years and cable procurement taking up to three years—further slow progress
Amid these challenges, reconductoring with advanced conductors, such as CTC Global’s ACCC® Conductor, offers a highly effective solution by increasing transmission capacity, reducing energy losses, and accelerating grid modernization without requiring new transmission corridors.
Unlocking Grid Capacity Without New Transmission Corridors
One of the key challenges highlighted in the IEA report is the delay caused by permitting, which in advanced economies averages eight years for extra-high voltage lines. This is a significant bottleneck when trying to expand the grid at the speed necessary to support rising electricity demand. Reconductoring with ACCC® Conductor provides a way around this issue, allowing utilities to upgrade existing lines rather than waiting for new transmission approvals.
Unlike traditional conductors, the ACCC Conductor’s advanced carbon fiber composite core enables higher power flow with reduced sag, effectively doubling transmission capacity within the same right-of-way. This means utilities can scale up electricity delivery without costly and time-consuming new infrastructure, making reconductoring a much faster alternative to conventional grid expansion.
Reducing Energy Losses and Enhancing Grid Efficiency
The IEA report notes that material shortages and rising costs for key components, such as copper and aluminum, are increasing the expense of grid expansion. As more electricity flows through transmission lines, conductor efficiency becomes a critical factor in controlling costs. ACCC® Conductor reduces energy losses by 25-40%, making power transmission more efficient and cost-effective.
By lowering losses, the ACCC® Conductor not only frees up additional grid capacity but also reduces overall generation costs and emissions, making it an essential tool for integrating renewables. In regions where transformers and substations face long procurement delays, improved conductor efficiency can help utilities offset the need for expensive new infrastructure investments.
Accelerating Clean Energy Integration and Grid Resilience
The IEA reports a growing mismatch between renewable energy deployment and transmission capacity, with many wind and solar projects stalled due to insufficient grid infrastructure. ACCC® Conductor facilitates faster integration of renewable power by enabling utilities to upgrade existing lines rather than waiting for new builds.
Because of its superior thermal and mechanical properties, ACCC® Conductor supports high-voltage direct current (HVDC) applications, making it ideal for long-distance power transfer and offshore wind projects. Moreover, reconductoring with ACCC® Conductor strengthens grid resilience by reducing the risk of overloads and ensuring power delivery remains stable even as electricity demand rises.
Overcoming Supply Chain and Labor Shortages
The IEA highlights that supply chain constraints and a 1.5 million worker shortfall in the power sector are slowing grid expansion. With material costs rising and manufacturing lead times extending, reconductoring presents an attractive alternative to traditional grid expansion.
Unlike building new transmission infrastructure, reconductoring requires fewer materials and significantly less labor, mitigating the impact of global workforce shortages. The ACCC® Conductor’s lighter weight also simplifies installation, reducing both project costs and implementation time. As manufacturers struggle to meet demand for transformers, cables, and steel structures, utilities can use reconductoring to work around these supply chain constraints while still achieving their electrification and decarbonization goals.
Conclusion: A Scalable Solution for the Energy Transition
The IEA report makes it clear: delays in transmission expansion pose a major threat to clean energy transitions and electrification efforts. With permitting bottlenecks, supply chain disruptions, and rising material costs slowing new grid projects, utilities must adopt innovative solutions to keep pace with electricity demand.
Reconductoring with ACCC® Conductor offers a practical, scalable alternative, allowing utilities to increase transmission capacity, cut energy losses, and accelerate grid modernization without waiting years for new infrastructure approvals. By prioritizing advanced conductors over traditional expansion strategies, policymakers and grid operators can take a decisive step toward a more reliable, cost-effective, and sustainable energy future.
