Space cooling is the fastest-growing use of energy in buildings globally and in theAssociation of Southeast Asian Nations (ASEAN). Electricity use for cooling inbuildings across the region has increased dramatically over the past decades. Yettoday, only 15% of households in Southeast Asia have an air conditioner; fansrepresent around another 9% of residential energy use. With continued economicdevelopment and population growth across the region, the International EnergyAgency (IEA) projects that air conditioner ownership across the ASEAN MemberStates (AMS) will continue to grow. This growth could see electricity demand fromspace cooling in the region grow to 300 TWh in 2040 – approximately equivalentto the total electricity consumption of Indonesia and Singapore combined.