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

Interconnection

Energy; Coal

Two or more electric systems having a common transmission line that permits a flow of energy between them. The physical connexion of the electric power transmission facilities allows for the sale or ...

Moderator

Energy; Coal

A material, such as ordinary water, heavy water, or graphite, used in a reactor to slow down high-velocity neutrons, thus increasing the likelihood of further fission.

Load shedding

Energy; Coal

Intentional action by a utility that results in the reduction of more than 100 megawatts (MW) of firm customer load for reasons of maintaining the continuity of service ofthe reporting entity's bulk ...

Interdepartmental sales

Energy; Coal

Includes amounts charged by the electric department at tariff or other specified rates for electricity supplied by it to other utility departments.

Modules

Energy; Coal

Photovoltaic cells or an assembly of cells into panels (modules) intended for and shipped for final consumption orto another organisation for resale. When exported, incomplete modules and ...

Load-serving entity (electric)

Energy; Coal

Secures energy and transmission service (and related Interconnect Operations Services) to serve the electrical demand and energy requirements of its end-use customers.

Interdepartmental service (electric)

Energy; Coal

Interdepartmental service includes amounts charged by the electric department at tariff or other specified rates for electricity supplied by it to other utility departments.