Enecoat Technologies, a Kyoto University startup, has demonstrated wearable perovskite solar cells at an Osaka-Kansai Expo test event. According to Enecoat, the vests were embedded with four 7.5 cm panels producing under 4 watts, sufficient to power small devices. The electricity was stored using a fiber-based control unit integrated into the clothing. As per Toin Yokohama University, perovskite technology was invented by Tsutomu Miyasaka and is suited for curved surfaces and low-light use. Enecoat is collaborating with Toyoda Gosei and Seiren on solar-powered garments. Japan, which holds 30% of global iodine supply, has targeted 20 GW of perovskite capacity by 2040. Panasonic Holdings and Sekisui Chemical have announced plans to launch commercial perovskite products by the fiscal year’s end.