Lignite, known as brown coal, has a much higher energy content, and lower ash and sulphur content, than anthracite or bituminous coals which were predominantly used in the past.

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Lignite, or brown coal, actually has a lower energy content and higher moisture content compared to anthracite and bituminous coals, which are higher grades of coal with higher energy content and lower moisture levels.

Lignite, Known as Brown Coal, Has a Much Higher Energy