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

Electricity broker

Energy; Coal

An entity that arranges the sale and purchase of electric energy, the transmission of electricity, and/or other related services between buyers and sellers but does not take title to any of the power ...

Condensate (lease condensate)

Energy; Coal

A natural gasliquid recovered from associated and non associated gas wells from lease separators or field facilities, reported in barrels of 42 U.S. gallons at atmospheric pressure and 60 degrees ...

Electricity congestion

Energy; Coal

A condition that occurs when insufficient transmission capacity is available to implement all of the desired transactions simultaneously.

Condenser cooling water

Energy; Coal

A source of water external to a boiler's feed system is passed through the steam leaving the turbine in order to cool and condense the steam. This reduces the steam's exit pressure and recaptures its ...

Electricity demand

Energy; Coal

The rate at which energy is delivered to loads and scheduling points by generation, transmission, and distribution facilities.

Conditional energy intensity

Energy; Coal

Total consumption of a particular energy source(s) or fuel(s) divided by the total floorspace of buildings that use the energy source(s) or fuel(s); i.e.,the ratio of consumption to energy ...

Electricity demand bid

Energy; Coal

A bid into the power exchange indicating a quantity of energy or an ancillary service that an eligible customer is willing to purchase and, if relevant, the maximum price that the customer is willing ...