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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.

Contributors in Coal

Coal

administrative and general expenses

Energy; Coal

Expenses of an electric utility relating to the overall directions of its corporate offices and administrative affairs, as contrasted with expenses incurred for specialized functions. Examples ...

advance royalty

Energy; Coal

A royalty required to be paid in advance of production from a mineral property that may or may not be recoverable from future production.

advances from municipality

Energy; Coal

The amount of loans and advances made by the municipality or its other departments to the utility department when such loans and advances are subject to repayment but not subject to current ...

advances to municipality

Energy; Coal

The amount of loans and advances made by the utility department to the municipality or its other departments when such loans or advances are subject to current settlement.

adverse water conditions

Energy; Coal

Reduced stream flow, lack of rain in the drainage basin, or low water supply behind a pondage or reservoir dam resulting in a reduced gross head that limits the production of hydroelectric power or ...

adverse weather conditions

Energy; Coal

Reduced streamflow, lack of rain in the drainage basin, or low water supply behind a pondage or reservoir dam resulting in a reduced gross head that limits the production of hydroelectric power or ...

affiliate

Energy; Coal

An entity which is directly or indirectly owned, operated, or controlled by another entity. See Firm.

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