Blessed with a wide variety of landscapes, the African country of Uganda produces everything from bananas and coffee to tea and cocoa. Indeed, its land plays a big role in its economy: the Uganda National Household Survey for 2016/17 found that 65% of the country’s working population were involved in the agriculture, forestry and fishing sectors. And while these areas of the economy employ people, their by-products and waste-streams could also have a part to play when it comes to encouraging the use of sustainable energy.
Vianney Tumwesige is managing director of Green Heat International, a firm which wants to take the waste produced from sectors like agriculture and then use it to generate products such as fertilizer and biofuel. “The crops are used for food and the waste that the farmers generate, we use it to make energy,” he said. Green Heat harnesses this waste in a number of ways. Solid waste products, such as charcoal dust and banana skins, are used to produce briquettes, while the use of technology such as biogas digesters allows people to turn waste into products like biofuel and fertilizer.
Maria Nantege, from the Grail Centre, which is located in the capital city of Kampala, said that two cows and two calves there were being used to generate gas. “We are taking … animal manure from the cow and the manure is mixed with urine,” Green Heat’s Tumwesige went on to explain. “We mix it with water and we put it in the biogas system, which is at the back of the farm,” he added, describing the biogas system as a large piece of infrastructure “built in the ground.”
Source: CNBC
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