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The significance of transmission network expansion planning (TNEP) in a restructured power system is underscored by the urgent need to integrate renewable energy sources. As the world shifts towards sustainability, effective transmission planning becomes critical for accommodating diverse energy sources, particularly wind and solar, which are frequently situated far from consumption centers. This integration is not only essential for achieving sustainability goals and reducing greenhouse gas emissions but also for ensuring a reliable and efficient power supply. Moreover, strategic transmission planning plays a vital role in minimizing congestion within the network, which can escalate costs and compromise reliability. By anticipating future demand and generation patterns especially the intermittent nature of renewables planners can optimize the placement of transmission lines and substations to mitigate potential bottlenecks. In a competitive market, a resilient transmission infrastructure is crucial for providing equitable access to all market participants, thereby fostering innovation and competition. Additionally, effective planning must address regulatory requirements and stakeholder interests, promoting transparency and collaboration among various entities in the power sector. This comprehensive approach not only ensures compliance but also builds public trust in the energy system. In summary, developing an efficient transmission network is imperative for supporting a reliable, competitive, and sustainable power system that prioritizes renewable energy sources. This paper aims to provide an overview of the challenges ahead in TNEP while proposing necessary solutions to effectively address these challenges.
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Abdollah Rastgou (2025) studied this question.
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