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

Geologic considerations

Energy; Coal

Conditions in the coal deposit or in the rocks in which it occurs that may complicate or preclude mining. Geologic considerations are evaluated in the context of the current state of technology and ...

Incandescent lamp

Energy; Coal

A glass enclosure in which light is produced when a tungsten filament is electrically heated so that it glows. Much of the energy is converted into heat; therefore, this class of lamp is a relatively ...

Methanol blend

Energy; Coal

Mixtures containing 85 percent or more (or such other percentage, but not less than 70 percent) by volume of methanol with gasoline. Pure methanol is considered an "other alternative fuel."

Incandescent light bulbs, including regular or energy-efficient light bulbs

Energy; Coal

An incandescent bulb is a type of electriclight in which light is produced by a filament heated by electric current. The most common example is the type you find in most table and floor lamps. In ...

Methanotrophs

Energy; Coal

Bacteria that use methane as food and oxidise it into carbon dioxide.

Incentives demand-side management (DSM) programme assistance

Energy; Coal

This DSM programme assistance offers monetary or non-monetary awards to encourage consumers to buy energy-efficient equipment and to participate in programmes designed to reduce energy usage. ...