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The International Solar Alliance (ISA) is a treaty-based international intergovernmental alliance of 121 solar resource rich countries lying fully or partially between the Tropics of Cancer and Capricorn.

The ISA was launched as a coalition of the solar-rich countries by Mr Narendra Modi, Hon’ble Prime Minister of India, and Mr François Hollande, former Hon’ble President of France, in the presence of H.E. Ban Ki Moon, former Secretary-General of the United Nations, at Paris on November 30, 2015, the first day of the Conference of Parties (CoP) 21 of the United Nation’s Framework Convention on Climate Change (UNFCCC).

The Paris Declaration establishes ISA as an alliance dedicated to the promotion of solar energy among its member countries. The ISA’s major objectives include deployment of over 1000GW of solar capacity and mobilisation of investment of over US$ 1000 billion into solar energy by 2030. As an action-oriented organisation, the ISA brings together countries with rich solar potential to aggregate global demand, thereby reducing prices, facilitating the deployment of existing solar technologies at scale, and promoting collaborative solar R&D and capacity.

The ISA Agreement has already been signed by 40 countries, with 10 having deposited instruments of ratification. Five more countries have confirmed ratification. Following the deposit and acceptance of the fifteenth instrument of ratification, the Agreement will come into force and the ISA will become a treaty-based organisation.

The ISA is headquartered at Gurugram, Haryana, in India. H.E. Upendra Tripathy is the Interim Director General.

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