The ASEAN-5 countries are home to 458 million people with a cumulative GDP of USD2.1 trillion in 2015. As emerging markets, these nations have been charting healthy economic growth, with a 5-year CAGR of 3.7% (2010: USD1.8 trillion). Fuelled by their robust economies, rapid industralisation and expanding populations, electricity demand has also risen accordingly, with a 5-year CAGR of 4.8%. This growing demand for electricity necessitates a steady source of power supply. Nonetheless, efforts to close the supply-demand gap have often posed challenges to certain countries. While Malaysia, Singapore and Thailand have excellent access to electricity supply, Indonesia and the Philippines have experienced huge power deficits, as underlined by their electrification rate of less than 90%.