Abstract
South Africa has large deposit of coal that supports about 95 % of electric power generation in
the country. The fuel is fast depleting, though the current reserve may serve for the next
century. However, the emissions from the coal projects huge threat to the environment.
Similarly, the country has abundant solid wastes that can be co-gasified with coal to H2
enriched syngas for clean energy production. A 5 MW combined heat and power plant was
studied using different coal-to-solid waste ratios including 1:1, 3:2, and 4:1 with feedstocks
costing, and without feedstock costing. The lower heating value of the fuels, determined from
a model equation was applied to estimate the annual feedstocks requirement and the feed rate...