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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

Conditionally effective rates

Energy; Coal

An electricrate schedule that has been put into effect by the FERC subject to refund pending final disposition or refiling.

Carbon dioxide equivalent

Energy; Coal

The amount of carbon dioxide by weight emitted into the atmosphere that would produce the same estimated radiative forcing as a given weight of another radiatively active gas. Carbon dioxide ...

Deferred income tax (liability)

Energy; Coal

A liability inthe balance sheet representing the additional Federal income taxes that would have been due if a utility had not been allowed to compute tax expenses differently for income tax ...

Carbon output rate

Energy; Coal

The amount of carbon by weight per kilowatthour of electricity produced.

Carbon cycle

Energy; Coal

All carbon sinks and exchanges of carbon from one sink to another by various chemical, physical, geological, and biological processes. Also see Carbon sink.

Deferred fuel costs

Energy; Coal

An expenditure for fuel that is not recognised for bookkeeping practises as a cost in the operating period incurred, but carried forward to be written off in future periods.

Carbon intensity

Energy; Coal

The amount of carbon by weight emitted per unit of energy consumed. A common measure of carbon intensity is weight of carbon per British thermal unit (Btu) of energy. When there is only one fossil ...

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