Polarbrella: Innovative Solar Umbrellas for Sustainability and Adaptability  

The Polarbrella Smart Sunshade is an innovative shading solution that integrates photovoltaic power generation with intelligent management. Equipped with an ultra-large (6㎡), highly efficient flexible perovskite module and a smart cooling system, it provides all-day shade while achieving an active temperature reduction of 5–8°C. Its built-in 1kWh energy storage module supports off-grid operation for up to 24 hours and incorporates smart features such as charging interfaces, IoT environmental sensors, and a replaceable e-ink advertising screen. Polarbrella is suited for diverse settings including urban parks, commercial plazas, and corporate campuses, meeting both municipal demands for low-carbon infrastructure and the need for distinctive experiences in commercial spaces. Multiple units can be combined to form a "Green Oasis Matrix," creating sustainably powered cool zones that redefine zero-carbon summer living through clean technology. 

Awarded in 2025 Jinko Solar Global Business and Technology Challenge