Coal

Coal

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

Industry: Energy

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Coal

Seasoned wood

Energy; Coal

Wood, used for fuel, that has been air dried so that it contains 15 to 20 percent moisture content (wet basis).

Transformer

Energy; Coal

An electrical device for changing the voltage of alternating current.

No. 5 and no. 6 fuel oil sold directly to the ultimate consumer

Energy; Coal

Includes ships, mines, smelters, manufacturing plants, electric utilities, drilling, railroad.

Rotary rig

Energy; Coal

A machine used for drilling wells that employs a rotating tube attached to a bit for boring holes through rock.

Thermal resistance (r-value)

Energy; Coal

This designates the resistance of a material to heat conduction. The greater the R-value the larger the number.

Number of mining operations

Energy; Coal

The number of mining operations includes preparation plants with greater than 5,000 total direct labour hours. Mining operations that consist of a mine and preparation plant, or a preparation plant ...