When the curtain fell on the first day of the 2025 Sustainable Energy for All Global Forum, the air crackled with innovation and hope. Among three extraordinary entrepreneurs vying for the top prize in a Shark Tank-style showdown, it was Dr Legena Henry—lecturer at The UWI Cave Hill—who stole the spotlight. Her bold solution? Transforming the Caribbean’s mounting sargassum seaweed crisis and rum distillery wastewater into an eco-friendly biofuel, poised to energise electric taxis and revolutionise local agriculture. Dr Henry illuminated how this dual waste-to-energy project could turn environmental headaches into a sustainable energy triumph for Barbados and beyond. Her initiative, unanimously chosen by seasoned clean-energy investors, not only promises to slash carbon emissions and bolster tourism but also embodies the region’s commitment to renewable innovation. Victory brought more than applause: Dr Henry secured a mentorship with global sustainable investment powerhouse Lightrock, fuelling the next phase of her project’s journey. The story also aired on SEforALL’s “Let’s Talk About Energy” podcast, with the world invited to witness a Caribbean-born solution making waves on the global stage.