Indian scientists have unveiled a compact solar-powered device that integrates energy generation and storage into a single unit, offering efficient, self-sustaining clean energy solutions.

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• Indian researchers have developed a photo-rechargeable supercapacitor that captures solar energy and stores electricity within a single integrated device.

• The innovation eliminates the need for separate solar panels and batteries, reducing cost, system complexity, energy losses, and dependence on external power-management electronics.

• The device was created at a government-supported nano-science research centre in Bengaluru, according to the Ministry of Science and Technology.

• It uses binder-free nickel–cobalt oxide nanowires grown on nickel substrate via hydrothermal process, forming a porous three-dimensional conductive network.

• This unique structure enables efficient sunlight absorption while simultaneously storing electrical charge, overcoming voltage and current mismatch issues seen in conventional systems.

• Laboratory tests showed stable output of 1.2 volts and 88 percent capacity retention even after 1,000 repeated photo-charging cycles.

• The system performed reliably across varied lighting conditions, including low indoor light and strong direct sunlight, ensuring consistent energy availability.

• Researchers say the device’s durability supports applications in wearables, portable electronics, and off-grid power systems for remote or underserved regions.