---
title: "International Solar Alliance — Definition & Meaning"
description: "The International Solar Alliance is a treaty-based organization in India that promotes solar energy among member states, enhancing global cooperation."
url: "https://modeldiplomat.com/learn/glossary/international-solar-alliance"
---

[New](https://modeldiplomat.com/)

#

Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The International Solar Alliance is a treaty-based intergovernmental organisation, headquartered in India, that coordinates deployment of solar energy among sun-rich member states.
- Where is the International Solar Alliance headquartered and why is its location significant?
- Who were the founding partners and when did the ISA come into being?
- How did the ISA's membership criterion change?
- What is the One Sun One World One Grid initiative and how is it linked to the ISA?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

Go beyond the definition

## Research International Solar Alliance like a delegate

Model Diplomat's AI drafts position papers, speeches, and country research with real sources — built for MUN and politics students.

## Timeline

1. 30 November 2015

   The International Solar Alliance (ISA) is a treaty-based intergovernmental organisation conceived jointly by India's Prime Minister Narendra Modi and French…

2. 15 November 2016

   Its Framework Agreement was opened for signature on at Marrakech (COP22) and entered into force on 6 December 2017 after the requisite fifteenth ratification.

3. 6 December 2017

   Its Framework Agreement was opened for signature on 15 November 2016 at Marrakech (COP22) and entered into force on after the requisite fifteenth ratification.

## Research it like a delegate

Research on modeldiplomat.com

## Ask a follow-up about International Solar Alliance

Open a cited briefing in Model Diplomat search — timelines, positions, and sources you can use in committee or exam answers.

[Start research on International Solar Alliance](https://modeldiplomat.com/search?q=Explain%20International%20Solar%20Alliance%20%E2%80%94%20key%20dates%2C%20actors%2C%20positions%2C%20and%20sources)

Example

In November 2015 at COP21 in Paris, Prime Minister Narendra Modi and President François Hollande jointly launched the International Solar Alliance, later headquartered at Gurugram, Haryana.

Keep learning

## Go deeper than the definition

Lessons

[Climate Change India S Commitments](https://modeldiplomat.com/learn/lessons/upsc-environment-ecology-climate-change-india-s-commitments)[Renewable Energy Climate Finance The Green Transition](https://modeldiplomat.com/learn/lessons/upsc-environment-ecology-renewable-energy-climate-finance-the-green-transition)[Mineral Energy Resources](https://modeldiplomat.com/learn/lessons/upsc-geography-mineral-energy-resources)

Courses

[Upsc Environment Ecology](https://modeldiplomat.com/learn/courses/upsc-environment-ecology)[Upsc Geography](https://modeldiplomat.com/learn/courses/upsc-geography)

[Explore all Civil Service & Diplomatic Exams lessons](https://modeldiplomat.com/learn/civil-services)[Test yourself with a quiz](https://modeldiplomat.com/learn/glossary/quiz/civil-services)

## Take International Solar Alliance beyond the glossary

Ask the AI research engine built for diplomacy — get briefings, position papers, and speeches with sources you can cite in committee.