hellen nyamungu also gets some.r own waste delivered to the company. >> so, the cycle is complete and keeps on going. it's a virtuous cycle which takes us from the vicious cycle of poverty to a virtuous cycle of prosperity. >> every year, peter nyeko can produce up to 100 tons of biochar. he only uses half of it as fertilizer. the other half is used to make clean-cooking fuel in the form of pellets. he also gives them out for free to families, to avoid cutting down trees for firewood. so far, the company has offset over 50,000 tonnes of co2 annually. >> i only use a few pellets to cook now, compared to the big volume of firewood that i was used to use. even if i light a few pellets, cooking is faster. >> in the last decade, peter nyeko has set up 5 mini-grid plants in uganda costing some 4.5 million euros, raised mainly through venture capital. his hybrid model backs up power from biomass with solar, another clean energy source. the plants generate a total of 500 kilowatts, powering more than 100 households, busines