Chinese researchers have achieved a world-record efficiency of 29.36% with their newly developed four-terminal (4T) perovskite-CIGS tandem solar cells, marking a groundbreaking advancement in renewable energy. Once deemed “impossible” for practical use due to poor stability and efficiency, perovskite has emerged as a transformative material in solar technology. This breakthrough not only sets a new benchmark for solar energy conversion but also paves the way for smaller, lighter, and more affordable solar panels, making clean energy more accessible worldwide. As the quest for sustainable energy solutions intensifies, perovskite-based technologies are poised to play a pivotal role in reshaping the future of solar power.