Coal — which one?
“coal” is not one grade — the published figures differ by up to 42% per tonne. Each grade below has its own sourced figures; picking one for you could be wrong without saying so.
- hard coal Also: coal (industrial), steinkohle, bituminous coal, black coal
- coal (domestic) Also: domestic coal, house coal, household coal
- coking coal Also: metallurgical coal, met coal, kokskohle, coke coal
- coal (electricity generation) Also: power station coal, electricity generation coal, power generation coal, generation coal