Methodological Approach to Economic Assessment of UHVDC Cross Border Interconnection for Renewable Energy Trading

This study quantitatively evaluates the net socio-economic benefits generated when renewable energy is supplied through an Ultra-High Voltage Direct Current (UHVDC)-based cross-border transmission network (UHVDC-CBT). Net benefits are defined as the difference between total benefits and total costs over the entire life cycle and serve as a key indicator for assessing the profitability of interconnection systems. Benefit components include transmission revenue, greenhouse gas reductions resulting from securing offshore renewable resources, and improvements in system reliability, while cost components consist of capital expenditure