Experience in Assessing HTLS Carbon Composite Core Conductor on Field Trial While Adhering to Sustainability and Strategies to Response Climate Change Issues in Malaysia

This assessment focuses on minimizing environmental impact by upgrading existing transmission lines rather than building new infrastructure. Avoiding new construction significantly reduces resource consumption, carbon emissions, and ecological disturbance.

Although the lightweight carbon composite core of HTLS conductors provides major mechanical and thermal advantages, it can also introduce challenges, particularly increased susceptibility to conductor oscillation under extreme wind conditions. These potential impacts were identified and assessed, together with appropriate mitigation measures to ensure operational safety and long term reliability. The study also explores opportunities to improve material recyclability, reduce overall carbon footprint, and encourage sustainable reuse or disposal practices, aligning HTLS deployment with circular economy principles and waste reduction goals in power transmission systems.

A comprehensive conductor comparison analysis was conducted to evaluate technical performance, potential reductions in carbon footprint, economic benefits from line loss reduction, and life cycle impacts of HTLS carbon composite conductors. Direct comparisons were made with conventional Aluminum Conductor Steel Reinforced (ACSR) conductors commonly used in the Malaysian grid. Engineering simulations were performed using appropriate software tools to analyze conductor sag, tension, and oscillatory behavior under varying mechanical loads and environmental conditions. These simulations were complemented by field trial evaluations, providing practical validation of analytical results.

Installation observations, operational performance data, and environmental impact assessments were systematically recorded throughout the trial period.

The results demonstrate that HTLS carbon composite conductors deliver excellent performance under high current loads and elevated operating temperatures while consistently maintaining safe electrical clearances. Their reduced weight and low thermal expansion significantly decrease sag and structural loading on existing transmission towers, enabling line uprating without major structural modification. Installation was efficient and caused minimal environmental disturbance.

Throughout the trial, the conductors operated reliably under Malaysia’s challenging climatic conditions, including high humidity and temperature extremes. Overall, the findings support national objectives to reduce carbon emissions, enhance grid efficiency, and increase renewable energy integration. By enabling higher transmission capacity without additional land use or deforestation, HTLS carbon composite conductors represent a viable, climate resilient, and sustainable solution for future transmission line uprating across Malaysia’s power grid. The purpose of this study is to establish a fast-track project framework to meet the rising demand for solar plant development within a short period in the future. Plus, the demand to construct of new data centres fast and immediate also contribute to demand on HTLS conductors. To achieve this, the application of HTLS conductors is essential for efficient and accelerated implementation, while maintaining the used of existing right of way (ROW).

This assessment therefore confirms that HTLS adoption offers both immediate operational benefits and long-term strategic value for utilities, regulators, and stakeholders, supporting energy security, environmental stewardship, and sustainable economic growth while strengthening transmission infrastructure resilience against future demand growth and climate related stresses across Malaysia’s evolving electricity sector nationwide over time.