hard coal

The higher-rank, higher-calorific class of coal (bituminous and anthracite) contrasted in European energy statistics with brown coal (lignite).

Eurostat and UN statistics report production, trade and consumption split along this hard coal / brown coal divide.

In this catalog it appears concretely: - Eurostat Coal Production and Consumption Statistics (what it publishes) — "Statistics Explained article on EU hard coal and brown coal". - UN Energy Statistics Database (what it publishes) — "covering hard coal, anthracite, coking coal, lignite and coal products". - Eurostat dataset (tagging) — "hard coal', 'lignite".

Conventions decide whether two sources can be joined at all. Buy one side of an analysis that ignores this convention and every reconciliation step — calendar alignment, unit conversion, entity matching — lands on your team instead of the vendor's.

The failure mode is concrete: a source can carry the hard coal label while differing from what you need on exactly the dimension that matters — Statistics Explained article on EU hard coal and brown coal. Comparing two sources on that line usually settles the choice faster than any feature matrix.

You rarely have to take a vendor's word for it. 82.4% of the 1,744 datasets Datadory catalogs are free to access, and Eurostat Coal Production and Consumption Statistics lets you inspect the real artifact before any budget is committed.

Treat every claim of this attribute as testable:

1. Read Eurostat Coal Production and Consumption Statistics's record on what it publishes — "Statistics Explained article on EU hard coal and brown coal" — then confirm the delivered artifact matches before you license anything.
2. Read UN Energy Statistics Database's record on what it publishes — "covering hard coal, anthracite, coking coal, lignite and coal products" — then confirm the delivered artifact matches before you license anything.
3. Read Eurostat dataset's record on tagging — "hard coal', 'lignite" — then confirm the delivered artifact matches before you license anything.

See the term applied to real records: coal-consumable-fuels data.

Adjacent concepts worth reading next: - anthracite - coking coal - lignite - siec