Fitzgerald discusses the inherent limitations of alternating current (AC) transmission, particularly for underground and underwater cables, and highlights the advantages of direct current (DC) technology for long-distance energy distribution. He explains the technical intricacies of DC systems, including their capacity to manage inertia and integrate non-synchronous renewable energy. Throughout the episode, Fitzgerald emphasizes the need to address public consultation challenges in infrastructure projects to ensure the successful deployment of energy transmission networks.
A central theme of the conversation is the evolving role of interconnectors. Once primarily used to exploit price differences between energy markets, interconnectors are now crucial for balancing variable renewable energy across regions. Fitzgerald explores the immense potential of continental-scale grids in Europe and advocates for tripling grid capacity to meet future energy demands. He also highlights groundbreaking projects like Sun Cable, which aims to connect Australia to Singapore, and the NATO-L project, which envisions transatlantic power transmission, underscoring the benefits of intercontinental energy connectivity for enhancing energy security.
The episode concludes with a forward-looking perspective on the energy transition. Fitzgerald calls for greater investment in HVDC technology, praises China's advancements in this area, and urges listeners to stay informed about opportunities to integrate renewables through interconnectors. By fostering interconnected grids, he argues, the global energy landscape can achieve greater efficiency, resilience, and sustainability.
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