International Solar Alliance
Powering the World with Solar Energy
An alliance of 120+ countries driving the global clean energy transition
What's New
Our Impact
Leading the Global Solar Transition Forward
ISA convenes Member Countries to accelerate solar deployment, expanding energy access, strengthening energy security, and advancing the global clean energy transition
112
Member Countries
Countries which have signed and ratified the ISA Framework Agreement
60
Startups Across Three Regions
Empowering startups to drive local energy innovation and grassroots solutions
15
Signatory Countries
Countries which have committed to the ISA Framework Agreement
22
Demonstration Projects
Delivering real-world impact through scalable clean energy projects across 22 countries
Strategic Pillars of ISA
Evolving Vision
Catalytic Finance Hub
The Hub will provide catalytic and blended finance to mitigate risk and attract private investment across Asia-Pacific, Latin America, and the Caribbean, building on the success of the Africa Solar Facility under the Global Solar Facility.
Global Capability Centre and Digitisation
Pursuing a "Silicon Valley for Solar" vision in India, the initiative links national centres of excellence including STAR-C through a hub-and-spoke model, mainstreaming innovation via the SolarX Startup Challenge and replicating proven solar models globally to reduce fossil fuel dependence.
Regional and Country-Level Engagement
Through platforms such as the SIDS Platform, the initiative will advance e-tendering and e-procurement for aggregation and scaling, while deepening engagement with Member Countries across ISA's ten programmes.
Technology Roadmap and Policy
To accelerate solar energy uptake across ISA Member Countries, the initiative will address supply chain diversification and emerging technologies, including solar PV, AgriPV, Floating PV, BIPV, battery storage, e-mobility, green hydrogen, grid interconnection, and solar heating and cooling.
What We Do
Global Solar Platforms
Enabling targeted action through tailored finance, technology, and partnerships
Global Solar Facility
A catalytic financing vehicle to attract private capital flows into underserved markets, beginning with Africa, through three funds: the payment guarantee, insurance and investment funds
ISA ACADEMY
ISA Academy will democratise solar learning and knowledge sharing globally, empowering individuals, institutions, investors and nations to accelerate the solar transition
STAR-C
STAR Centres build the required human capacity and skills within Member Countries to undertake the energy transition independently, while boosting economic growth and job creation
Global Mission on ai for energy
Global Mission on AI for Energy, is a collective effort to bring together governments, industry, financial institutions, and multilateral partners to build citizen-centric energy systems
SIDS PLATFORM
The ISA SIDS Platform accelerates solar deployment in Small Island Developing States by strengthening energy security and climate resilience through procurement, technical support, partnerships, and investment
OSOWOG
One Sun One World One Grid Programme on Regional and Global Interconnections is designed to foster cross-border transmission and trade of clean and affordable electricity
Country Partnership Framework
The Country Partnership Framework (CPF) is a strategic instrument that aligns ISA's programmes and initiatives with the national priorities, policies, and climate ambitions of its Member Countries.
GOVERNANCE METTINGS
Governance meetings including the Assembly, Standing Committee, and Regional Committees are held annually to review progress and guide strategic priorities among Member Countries.
Sunrise
Solar Upcycling Network for Recycling, Innovation & Stakeholder Engagement - a global platform advancing solar PV and battery circularity
GLOBAL ANALYTICS
Global analytics that transform data into actionable insights, enabling informed and strategic decision-making
In the Spotlight
Stay informed on the latest announcements, strategic developments, global events, and publications shaping the solar energy transition across Member Countries
Data Portals and Publications
Knowledge
Global Solar Trends and Outlook Report
Global Solar Trends and Outlook Report
Global Solar Trends and Outlook 2025 presents a comprehensive snapshot of the rapidly evolving solar landscape, highlighting record growth, persistent regional gaps, and emerging technologies. The report offers data-driven insights and policy perspectives to guide governments, investors, and development partners worldwide.
Ease of Doing Solar Report (EoDS) 2025
Ease of Doing Solar Report (EoDS) 2025
The Ease of Doing Solar Report (EoDS) 2025 provides data-driven insights into how supportive national ecosystems are for scaling solar energy. It embodies ISA's vision of accelerating solar adoption through evidence-based policymaking, investment facilitation and structured cooperation among Member Countries.
Global Floating Solar Framework Report
Global Floating Solar Framework Report
The Global Floating Solar Framework provides a practical roadmap to scale floating solar worldwide. It guides policymakers, developers, and financiers on technical design, regulation, finance, and safeguards, enabling sustainable deployment of FSPV systems, especially in land-constrained and water-rich regions.
Solar Compass: Special Issue on Integrated PV Applications
Solar Compass: Special Issue on Integrated PV Applications
The Special Issue on Integrated PV Applications explores the next frontier of solar innovation, where photovoltaics are seamlessly integrated into buildings, agriculture, water bodies, and mobility systems. It brings together global research and practical insights on emerging integrated PV solutions that enhance land-use efficiency, reduce emissions, and accelerate the transition to a sustainable energy future.
Solar PV Skills and Jobs in Africa
Solar PV Skills and Jobs in Africa
This report identifies and analyses future challenges related to skills and jobs in Africa's solar PV sector as the market develops to 2050, and recommends practical solutions to ensure that workforce constraints do not become a bottleneck to deployment. The analysis is based on primary data, including consultations and interviews with stakeholders across government, industry, research, civil society, and training institutions.
Annual Report 2025
Annual Report 2025
The Annual Report 2025 captures the International Solar Alliance's shift from vision to implementation, advancing solar deployment across its growing membership. Rooted in its founding at the Paris Climate Conference, ISA is driving impact through finance, capacity building, and country-led solutions. The report highlights its role in enabling inclusive, resilient, and scalable clean energy transitions.