Low-CV (calorific value) coals like lignite and sub bituminous, accounts just under half of the world's recoverable reserves. And South Africa, offers its rich reserves of coal for global trade. Existing boiler specifications, plant supply chains and contract terms often preclude the use of coal with CVâ??s much below 5,000 kcal, at least without preparation and blending. Demand for low calorific value (low CV) coal, which is of lower quality than coal with higher energy content, is increasing in the price-sensitive key markets of India and China. Also power generators in the major import market of India have built boilers specifically designed to burn a blend of low-CV Indonesian and South African coals.
