Geothermal

Geothermal

Geothermal gradient is the rate of increasing temperature with respect to increasing depth in the Earth's interior. Away from tectonic plate boundaries, it is 22.1°C per km of depth (1°F per 70 feet of depth) in most of the world. Strictly speaking, geo-thermal necessarily refers to the Earth but the concept may be applied to other planets.

Industry: Energy

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Geothermal

ambient

Energy; Geothermal

Natural condition of the environment at any given time.

aquifer

Energy; Geothermal

Water-bearing stratum of permeable sand, rock, or gravel.

artesian

Energy; Geothermal

Describes a source of groundwater or aquifer that is under pressure. If an artesian aquifer is tapped by a well, water rises above the surface of the aquifer without the need for pumping. The Great ...

baseload plants

Energy; Geothermal

Electricity-generating units that are operated to meet the constant or minimum load on the system. The cost of energy from such units is usually the lowest available to the system.

binary-cycle plant

Energy; Geothermal

A geothermal electricity generating plant employing a closed-loop heat exchange system in which the heat of the geothermal fluid (the "primary fluid") is transferred to a lower-boiling-point fluid ...

British thermal unit (BTU)

Energy; Geothermal

The quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at standard conditions. (Equal to 252 calories.)

carbon emission reduction scheme

Energy; Geothermal

A method such as a carbon tax or carbon trading scheme that reduces emissions of carbon (and often other greenhouse gases). A carbon tax is a tax imposed on the production or use of fossil fuels ...