A Sunshine Revolution
In December 2015, as world leaders gathered in Paris to negotiate a new climate agreement, Indian Prime Minister Narendra Modi and French President François Hollande unveiled the International Solar Alliance (ISA)—a new approach to global collaboration focused on accelerating solar energy deployment across developing nations.
The timing was strategic. Solar technology costs had declined significantly over the previous decade, creating unprecedented opportunities for countries with abundant sunshine. Yet despite this potential, solar-rich developing nations faced persistent barriers: limited financing, technical capacity gaps, underdeveloped markets, and policy uncertainty.
Traditional international institutions seemed ill-equipped to address these specific challenges. Broad climate agreements covered emissions but rarely tackled detailed implementation barriers. Development banks provided some project financing but couldn’t coordinate policy or aggregate demand. A new type of institution was needed—one that could bridge the gap between global climate commitments and on-the-ground energy transformation.
A South-South Cooperation Model
The international climate landscape of 2015 was already crowded with institutions and initiatives. The UN Framework Convention on Climate Change provided the overarching structure for global climate action, while numerous bilateral and multilateral programs supported renewable energy development.
Yet these existing frameworks had limitations. Many were primarily focused on emissions commitments rather than implementation mechanisms. Others operated as traditional donor programs, reinforcing North-South divisions rather than creating genuine partnerships. Most importantly, none specifically targeted the unique intersection of development needs and solar energy potential that characterized many developing nations.
The ISA took a distinct approach. Rather than universal membership, it initially focused on countries between the Tropics of Cancer and Capricorn—the “sunshine belt” with the highest solar potential. This geographic focus signaled a shift from the universal membership model of many international organizations towards a more targeted, purpose-driven coalition. Instead of donor-recipient dynamics, it emphasized South-South cooperation alongside partnerships with developed nations.
The alliance’s founding principles positioned member countries as active participants. It focused on addressing practical barriers, aggregating demand to unlock economies of scale, and harmonizing policies to create larger, more efficient solar markets. The ISA’s emphasis on collective problem-solving aimed to foster solidarity among countries that had historically been on the receiving end of climate finance, rather than active agents of their own energy transition.
From Vision to Institutional Framework
Building the ISA required navigating governance, funding, and programmatic priorities. The alliance adopted a three-tiered governance structure: an Assembly of all member countries, a Standing Committee for strategic guidance, and a Secretariat in Gurugram, India—reflecting India’s leadership role. India and France continue to play key roles, re-elected as President and Co-President in 2024. [1]
Rather than beginning with lofty declarations, the ISA chose a different path. It launched targeted initiatives addressing real-world barriers: scaling solar applications for agriculture, unlocking finance, harmonizing policies, and developing universal standards. This pragmatic approach quickly bore fruit. Thousands of solar water pumps now operate across member nations, reducing carbon footprints and farming costs. By pooling demand, the alliance drove down technology costs across countries. Most ambitious is its goal to mobilize $1 trillion in solar investments by 2030, channeled through partnerships with development banks and private organizations.
Perhaps the clearest testament to the ISA’s value came in 2020 when it transcended its tropical origins, opening membership to countries worldwide. Today, with 104 member countries and 18 signatories [2], it stands as one of history’s fastest-growing international bodies—proof of a model that resonates across diverse geopolitical landscapes.
Navigating Challenges Through Adaptation
Yet the path hasn’t been without obstacles. Implementation often lags behind announcements. Resources skew toward larger economies, leaving smaller nations with proportionally less support. The alliance’s funding model, heavily dependent on Indian backing and voluntary contributions, raises sustainability questions. And like many global institutions, measuring impact consistently across diverse contexts remains challenging.
The ISA’s response to these hurdles demonstrates its adaptive spirit. It has woven a network of partnerships with UN agencies, development banks, and private initiatives, leveraging external expertise while maintaining its focused mission. Capacity building has become a cornerstone, with over 900 professionals trained through its STAR-C program across six centers (with ten more planned). Regulatory workshops in eight countries have equipped 265+ policymakers with crucial skills. [3]
Innovation drives the alliance forward. The Global Solar Facility, unveiled at COP27, aims to unlock $50 million in commercial capital, beginning in the Democratic Republic of Congo. [4] The Africa Solar Facility, a $200 million initiative managed by Africa50, addresses unique financing barriers in the continent’s renewable energy sector. [5] The SolarX Startup Challenge supports 50 scalable solar solutions across Africa and Asia-Pacific. And perhaps most visionary is the One Sun One World One Grid initiative, which imagines a transcontinental solar electricity network. [6]
A New Model for Global Cooperation
What makes the ISA truly revolutionary is its reimagining of international collaboration. Its sector-specific focus contrasts with traditional broad-mandate organizations, while its South-South cooperation model offers a refreshing alternative to conventional donor-recipient dynamics.
The ISA bridges the implementation gap between grand agreements and on-the-ground transformation. By interweaving policy advocacy, technical assistance, and financial mobilization, it creates a comprehensive approach particularly benefiting least-developed countries and small island states.
This model demonstrates that targeted, action-oriented institutions can complement broader frameworks, developing nations can lead international cooperation, and global institutions can evolve to meet changing needs.
At UNDP Istanbul Innovation Days
How can we design international institutions that effectively bridge global commitments and local implementation? What can we learn from the ISA’s focused, mission-driven approach to cooperation?
At IID, we invite participants through plenaries, discussions, and workshops to explore how institutional innovation in international cooperation can accelerate progress on sustainable development. As the International Solar Alliance demonstrates, new forms of collaboration—targeted, action-oriented, and bridging traditional North-South divides—can help translate global goals into tangible results, creating pathways for developing nations to leapfrog to cleaner, more sustainable development models.
[1] https://www.pv-magazine-india.com/2024/11/04/india-re-elected-as-president-of-international-solar-alliance/
[2] https://isa.int/
[3] https://www.pv-magazine-india.com/2024/11/04/india-re-elected-as-president-of-international-solar-alliance/
[4] https://www.pv-magazine-india.com/2024/11/04/india-re-elected-as-president-of-international-solar-alliance/
[5] https://energycapitalpower.com/africa50-to-manage-international-solar-alliances-africa-solar-facility/
[6] https://www.pv-magazine-india.com/2024/11/04/india-re-elected-as-president-of-international-solar-alliance/
