A novel inter-country integrated power generation-transmission expansion planning model: case study on North-east Asia

The unbalanced distribution of energy resources and power demand in Northeast Asia determines that the optimal resources utilization needs to break national boundaries and realize transnational power transmission. In this paper, a novel inter-country integrated power generation-transmission expansion planning model is proposed to solve the issue of source-grid coordination planning in different countries in the interconnection area. Taking Northeast Asia as an example, the optimal planning results of transnational transmission capacity and installed power generation capacity in various countries are obtained under different development scenarios. The results show that the power source structure of exporting countries will impact the economic competitiveness and potential scale of interconnection.