As the report is centred around regional opportunities for interconnection, the IEA has partnered with State Grid Corporation of China, Global Energy Interconnection Development and Cooperation Organization (GEIDCO), Nordic Energy Research, the Commission for Regional Energy. As the report is centred around regional opportunities for interconnection, the IEA has partnered with State Grid Corporation of China, Global Energy Interconnection Development and Cooperation Organization (GEIDCO), Nordic Energy Research, the Commission for Regional Energy. This paper presents the contribution of an utterly systematic model and method for evaluating the comprehensive benefits of energy interconnection and analyzes the comprehensive benefits of energy interconnection development from multiple dimensions in economics, society, resources, and links. This. Under the background of building global energy interconnection and achieving green and low-carbon development, this paper grasps a new round of energy restructuring and the trend of energy technology change, based on the present situation of global and China's global energy interconnection. The concept of Global Energy Interconnection (GEI) proposed by Global Energy Interconnection Development and Cooperation Organization (GEIDCO) integrates smart grids, ultrahigh voltage (UHV) transmission and renewable energy access (solar, wind and hydro). Ultrahigh Voltage (UHV) lines could. Global energy interconnection (GEI) represents the ultimate evolution of the trend towards greater interconnection of power systems. RAND is nonprofit, nonpartisan, and committed to the public interest. To learn more about RAND. The Centre of Policy Studies (CoPS), incorporating the IMPACT project, is a research centre at Victoria University devoted to quantitative analysis of issues relevant to economic policy.