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

Interchange energy

Energy; Coal

Kilowatthours delivered to or received by one electric utility or pooling system from another. Settlement may be payment, returned in kind at a later time, or accumulated as energy balances until the ...

Miscellaneous petroleum products

Energy; Coal

Includes all finished products not classified else where (e.g., petrolatum lube refining by products (aromatic extracts and tars), absorption oils, ram-jet fuel, petroleum rocket fuels, synthetic ...

Load management technique

Energy; Coal

Utility demand management practises directed at reducing the maximum kilowatt demand on an electric system and/or modifying the coincident peak demand of one or more classes of service to better meet ...

Interchange transaction (electric)

Energy; Coal

An agreement to transfer energy from a seller to a buyer that crosses one or more Balancing Authority Area boundaries.

Miscellaneous reserves

Energy; Coal

A supply source having not more than 50 billion cubic feet of dedicated recoverable salable reserves and that falls within the definition of Supply Source.

Load on equipment

Energy; Coal

One hundred percent load is the maximum continuous net output of the unit at normal operating conditions during the annual peak load month. For example, if the equipment is capable of operating at 5% ...

Intensity

Energy; Coal

The amount of a quantity per unit floor space. This method adjusts either the amount of energy consumed or expenditures spent, for the effects of various building characteristics,such as size of the ...