On September 6, 2024, Typhoon Yagi swept through Haikou. While the storm caused disruptions across the city, our community-built Playground without Walls survived completely intact. How did simple materials like rope, tape, and wire withstand a Category 17 typhoon? Beyond engineering, it was the collaboration, creativity, and resilience of our team and local children that made this possible.

When it comes to clean energy, what comes to mind? Solar power, wind power, hydropower? Biomass, geothermal, tidal energy? Or are there other possibilities?

Among over 500 startup applications from nearly 30 countries, HappyPower has been chosen to advance to the offline semi-final pitch  of...