Examines the concept of an ASEAN-wide electricity grid, tracing its theoretical foundations, early development in Southeast Asia, and practical applications in other regions. Analyzes political, technical, economic, and institutional factors affecting feasibility, including ASEAN energy cooperation history, power industry structures, external influences, and electricity trade design options. Evaluates scenarios and concludes on the political viability and strategic design of a grid adapted to ASEAN's maturity level.