Harnessing solar and wind for sustainable cross-border electricity trade in the Greater Mekong Subregion

Abstract

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Sustainable, low-emission electricity generation options are needed in the Greater Mekong Subregion, including for cross-border electricity trade. Large-scale investment in solar and wind power, together with off-river pumped hydro energy storage, is identified as a promising way forward. The GMS has many potential off-river pumped hydro sites. Actionable recommendations include greater use of bilateral power purchase agreements for cross-border solar and wind power supply, and potential development of a high-voltage direct current grid. Institutional prioritization and ongoing evaluation are required to ensure desired social, environmental, and economic outcomes from the transition.

Keywords

• electricity trade
• Mekong
• pumped hydro energy storage
• solar
• wind