Turning Sargassum into Sustainable Energy: A Caribbean Innovation
Discover how Caribbean scientists are turning invasive sargassum seaweed into sustainable biogas fuel. Learn about the pioneering work of Antigua’s Shamika Spencer and Dr. Legena Henry, whose innovative research could revolutionize clean energy in the region.
Few things disrupt the beauty of the Caribbean like sargassum. Fishing lines snag, props and rudders stop, and once-pristine beaches are blanketed with sulfur-smelling seaweed. But one Antiguan PhD student is on a mission to transform this nuisance into a game-changing resource.
Shamika Spencer, currently pursuing her studies at the University of the West Indies (UWI), Cave Hill Campus, in Barbados, is making strides in the sustainable energy field. In September, Spencer joined a team of Caribbean scientists for Test Drive Zero, a groundbreaking initiative exploring the potential of turning sargassum into biogas fuel to power electric vehicles. This experiment demonstrated a practical application of renewable energy research and a promising step toward reducing fossil fuel dependency in the Caribbean.
This transformative research is spearheaded by Dr. Legena Henry, a Trinidadian-born MIT graduate and Renewable Energy Lecturer at UWI. Dr. Henry’s company, Rum and Sargassum Inc., is leading the charge in commercializing the process. By determining the optimal mix of sargassum and wastewater from rum distilleries, the team aims to produce sustainable biogas. If successful, this innovation could reduce carbon emissions in the region by as much as 1 million metric tons annually.
Beyond its potential for clean energy, this method could address the environmental and economic challenges posed by invasive sargassum. By converting the seaweed into fuel, the Caribbean can reduce its impact on marine ecosystems, improve tourism by keeping beaches clear, and contribute to global climate goals.
“This is more than just clean energy—it’s a solution to one of the region’s biggest environmental challenges,” says Dr. Henry.
With pioneers like Spencer and Henry at the forefront, the Caribbean is proving that innovation and sustainability go hand in hand.
For more on this groundbreaking project, visit www.rumandsargassum.com.
Carol Bareuther has written for ALL AT SEA since 2004.
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