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Novel Device Harnesses Shadows to Generate Electricity

The novel shadow-effect energy generator developed by NUS researchers uses the contrast in illumination between the lit and shadowed areas to generate electricity. (Photo: Royal Society of Chemistry)

Researchers have created a device called a ‘shadow-effect energy generator’ that makes use of the contrast in illumination between lit and shadowed areas to generate electricity. This novel concept opens up new approaches in harnessing indoor lighting conditions to power electronics.

Shadows are often associated with darkness and uncertainty. Now, researchers from the National University of Singapore (NUS) are giving shadows a positive spin by demonstrating a way to harness this common but often overlooked optical effect to generate electricity.

“Shadows are omnipresent, and we often...

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