Across Africa, access to affordable and reliable electricity remains one of the continent’s most persistent challenges, particularly in off-grid rural areas. As solar struggles during rainy seasons and fossil fuels prove costly, local innovators are turning to homegrown, sustainable solutions that rethink how energy can be generated and used.In Sierra Leone, one such breakthrough comes from Oswald Abioseh Dundas, an inventor who turned a personal tragedy into a transformative idea. Faced with a power outage while his infant son relied on hospital oxygen, Dundas began experimenting with salt water as a power source. The result? A technology that instantly generates electricity when salt and water are added, no charging required, no noise, no pollution.

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