Global Energy Interconnection Phase III

Phase III of the Global Energy Interconnection (GEI) focuses on developing Afro-Eurasian transcontinental grids using ultra-high voltage systems between 2030 and 2070.Overview of Phase IIIPhase III represents the final stage of the GEI, a long-term initiative proposed by the State Grid Corporation of China (SGCC) to create a globally interconnected electricity network. This phase aims to link continental grids across Africa, Europe, and Asia through ultra-high voltage (UHV) transmission lines, enabling large-scale, cross-continental energy exchange and integration of renewable energy resources .ObjectivesTranscontinental Grid Integration: Connect national and continental grids to form a seamless Afro-Eurasian electricity network .Renewable Energy Optimization: Facilitate the transmission of clean energy from regions with abundant renewable resources (e.g., solar in Africa, wind in Europe) to high-demand areas .Energy Security and Reliability: Enhance global energy stability by diversifying supply sources and reducing dependency on localized generation .Technological Advancement: Implement advanced UHV and smart grid technologies to manage long-distance power transmission efficiently and minimize losses .TimelinePhase III is projected to occur between 2030 and 2070, following Phase I (national grid integration and smart grid development) and Phase II (continental grid interconnection), . This long-term horizon allows for the gradual deployment of infrastructure, technological innovation, and international collaboration.Technological and Strategic SignificanceUltra-High Voltage (UHV) Transmission: Enables efficient long-distance electricity transfer with minimal losses, critical for connecting distant renewable energy sources .Smart Grid Integration: Incorporates real-time monitoring, adaptive control, and cyber-physical security measures to ensure grid stability and resilience .Global Energy Governance: Supports international cooperation and aligns with climate goals, including the UN Sustainable Energy for All initiative and Paris Agreement targets .International and Geopolitical ContextPhase III is not only a technical endeavor but also a geopolitical initiative. China has promoted GEI in international forums, emphasizing ecological civilization and sustainable development. The project encourages collaboration among countries willing to participate in a mutually beneficial, clean energy-dominant global network .ConclusionGlobal Energy Interconnection Phase III is a visionary plan to create a transcontinental electricity network across Africa, Europe, and Asia, leveraging UHV technology and smart grids to optimize renewable energy use, enhance energy security, and support global sustainability goals. Its successful implementation will require decades of technological innovation, international cooperation, and strategic planning .