The Australian Energy Transition Institute (AETI), traded as ISETS Sustaianblity Insitute, is an international group of collaborators and aims to be a world-leading independent energy think-tank. AETI operates as a virtual institute and brings together Australian and international experts from various disciplines.

AETI conducts research and provides analytical and consulting services on energy and environmental issues that support the transition of the fossil fuel sectors and the adoption of clean and green energy technologies.

AETI is one of the founding institutes of the International Society for Energy Transition Studies (ISETS) and serves as its operational agency.