Hosted in collaboration with MNRE, ISA brings the global solar movement to center stage at World Expo 2025.

The International Solar Alliance (ISA) will host the next editions of its flagship initiatives—the CEO Caucus and the International Solar Festival (ISF)—at World Expo 2025 in Osaka, Japan, from 3–4 July 2025. These platforms will bring together global leaders, innovators, policymakers, and community champions to advance the global solar transition and foster collaboration across regions.
Launched in 2024, the CEO Caucus and International Solar Festival (ISF) have emerged as key platforms shaping the future of solar energy deployment and innovation.
“The CEO Caucus and International Solar Festival are not just flagship initiatives of ISA—they are dynamic, global convenings for public-private collaboration, youth-led innovation, and transformative solar action. By hosting them at World Expo 2025 in collaboration with the Ministry of New and Renewable Energy (MNRE), ISA is deepening its commitment to transforming solar movement from Ambition to Action. While India’s progress offers a powerful role model for Global South — reaching 224 GW of renewable capacity as of April 2025, including 108 GW from solar— these platforms are about global momentum bringing together India, Japan and ISA’s 124 member countries by sharing stories, building partnerships, and enabling jobs led solar growth,” said Mr Ashish Khanna, Director General, International Solar Alliance.
The 2025 CEO Caucus, themed “Forging the Future of Solar: India-Japan Innovations for a Sustainable Asia’ will focus on unlocking new opportunities for cross-border investment, resilient supply chains, and clean energy innovation. A key highlight will be the India–Japan Solar Industry Roundtable, which will explore collaboration in battery storage, green hydrogen, and solar manufacturing—supporting India’s ambition of 500 GW of renewable capacity by 2030. The Osaka edition builds on the first 2025 CEO Caucus roundtable held in Brussels in June, which explored Europe’s role in diversifying and strengthening global solar value chains.




