Sunlight slowly damages solar panels; researchers think they have found a natural shield - a red onion

Solar power is growing fast across the US, but scientists say one hidden part of today's solar technology still depends on petroleum-based plastics. New research has revealed that red onion skins may offer a biodegradable alternative for UV protection in future solar-powered sensors and electronics. It's a small discovery with the potential to reshape how the next generation of solar devices is built.