What is the International Solar Alliance (ISA)?

The ISA is a treaty-based international organization launched by India and France to promote solar energy development globally, especially in solar-rich countries.

When was the International Solar Alliance established?

The ISA was launched on the first day of the Paris climate talks COP21 in December 2015 and formally came into force on December 6, 2017.

How has India benefited from the International Solar Alliance?

India has gained a leadership role in climate diplomacy, asserted its global power by creating a new international organization, and advanced its strategic interests.

Home / Environment / Sunshine Diplomacy: How India Built a Global Solar Powerhouse

Sunshine Diplomacy: How India Built a Global Solar Powerhouse

24 Dec, 2025

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Summary

International Solar Alliance marks its 10th anniversary.
Founded by India and France, it fosters solar energy globally.
India leveraged solar success to assert global climate leadership.

Sunshine Diplomacy: How India Built a Global Solar Powerhouse

The International Solar Alliance (ISA), a treaty-based international organization headquartered in India, is celebrating its 10th anniversary. Launched in December 2015 during the Paris climate talks, the ISA was co-founded by India and France with the ambitious goal of boosting solar energy, particularly in developing countries, and mobilizing $1 trillion in solar power by 2030. Initially met with skepticism, the ISA has since proven to be a significant diplomatic achievement for India, establishing its leadership in climate-adjacent spaces.