Renewable Energy Breakthrough: Innovative Garments and Accessories That Harness Power
Toyota is venturing into the realm of next-generation solar technologies with a focus on colorful, adaptable solar panels that can blend seamlessly into various environments. This innovative approach is part of Toyota's commitment to advancing carbon neutrality [4].
The research, led by Taizo Masuda, Ph.D. (Engineering), Group Manager of Toyota's Carbon Neutral Development Division, explores solar cells that can change shape and colour, inspired by natural movements, to enhance energy capture efficiency and expand the usability of solar power beyond static, flat panels.
One example of this research is a portable charger wrapped in solar panel sheets that resemble camouflage patterns or even wood grains. This world-first technology supports colourful designs while generating electricity in the same way as conventional black solar panels [4].
Toyota worked with carmaking partner Nippon Paint Automotive Coatings to develop the technology for producing uniform colouring. The company also conducted joint research with F-WAVE, a manufacturer and retailer of solar cells.
The goal was to combine power generation and aesthetics using solar panels. To overcome the issue of colouring solar panels blocking sunlight, the developers created thin decorative films that can be applied to panels, drawing on technology unique to carmakers. The secret to the film's ability to allow sunlight to pass through and generate electricity lies in the pigments used in automotive paint [4].
This innovation contributes to carbon neutrality by enhancing solar energy generation, making it more efficient, flexible, and harmonious with urban or natural settings. The adaptability helps optimize sunlight absorption throughout the day, potentially increasing power output and supporting Toyota's broader sustainability goals.
The adaptability of these solar panels opens up new possibilities for their installation, such as on city building walls, which were not previously considered [4]. This could facilitate wider adoption of clean energy, especially in regions like Japan, where flat land available for solar panel installation is limited.
However, large-scale solar plant projects may face opposition from residents wishing to protect local scenery. In response, the Tokyo Metropolitan Government has enacted an ordinance requiring new homes to be outfitted with solar panels. Meeting the national 2030 target for solar system adoption would require panel installation to double from the current level.
The Japanese government has vowed to achieve carbon neutrality by 2050 and is pushing for greater use of renewable energy sources. Toyota's work on shape-shifting solar cells aligns with its “Beyond Zero” vision to reduce carbon emissions by integrating advanced renewable technologies in diverse applications outside traditional automotive fields, thereby fostering more eco-friendly energy solutions [4]. This effort complements Toyota's leadership in alternative engines and hydrogen fuel cell vehicles as part of a comprehensive carbon-neutral strategy [2].
In an interview with Toyota Times, the in-house inventor who developed this technology shared insights into the process and the potential impact of these colorful, shape-shifting solar panels on the future of clean energy. The new technology has the potential to eliminate power outages, making it a significant step towards a sustainable, carbon-neutral future.
