The International Solar Alliance (ISA) has now become a treaty-based international intergovernmental organization. The ISA is headquartered in
In terms of its Framework Agreement, with ratification by Guinea as the 15th country in November 2017, the International Solar Alliance (ISA) has now become a treaty-based international intergovernmental organization. The International Solar Alliance is India's global initiative. It aims at increasing solar energy deployment in member countries. The ISA, headquartered in India, has its secretariat located in the campus of National Institute of Solar Energy, Gurgaon, Haryana.