Hardware
23.05.2026 10:53

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15-year-old with innovative generator brings hope to remote villages

A young innovator from Florida, Hannah Herbst, is once again in the spotlight for her remarkable energy solution. She has developed a device from cheap and recycled materials that harnesses the constant movement of ocean currents. Her invention promises to provide a reliable supply of electricity to remote coastal areas and developing countries that face a lack of electricity grids.
15-year-old with innovative generator brings hope to remote villages

Interest in renewable energy, off-grid power generation, and sustainable marine resources is growing. In light of these efforts, an innovation called BEACON (Bringing Electricity Access to Countries Through Ocean Energy) has been reborn. It is a project conceived by 15-year-old Hannah Herbst with energy poverty in developing countries in mind. The device received high recognition at the 3M Young Scientist Challenge and is now considered a major milestone in the field of sustainable clean energy.

The idea behind this generator is incredibly clever in its simplicity. The device harnesses the constant mechanical movement of ocean currents. The water powers a 3D-printed propeller that is connected to a small hydroelectric generator, and the entire mechanism is housed inside a durable PVC pipe. Hannah was inspired to create the project while observing strong currents while boating with her family in the Boca Raton Inlet area of Florida.

The key advantage of her innovation is its incredible affordability. The prototype is made entirely of inexpensive and reusable components, and the entire build cost only about 11 euros. During testing in Florida waters, this small generator successfully produced enough energy to power several LED lights. Unlike solar panels or wind turbines, which are highly dependent on weather fluctuations, ocean currents offer a constant and uninterrupted movement of water.

Scientists and engineers have long been exploring marine renewables as an alternative to powering remote areas, especially island communities, where transportation and purchasing fossil fuels are prohibitively expensive. According to Design Indaba, Hannah believes that a full-size device could charge multiple car batteries in just an hour. Although the initial prototype was small in size, it clearly demonstrates the potential of localized energy for places that are beyond the reach of national power grids. Hannah emphasized to Fast Company that she wanted to offer the plans as an open source project because she believes that everyone in the world should have free access to clean energy technologies.


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