Any combustible organic material, as oil, coal, or natural gas, derived from the remains of former life.

An increase in the earth's average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect.

A system of high tension cables by which electrical power is distributed throughout a region.

Relating to the generation and distribution of electricity coming from the energy of falling water or any other water source.

A biofuel intended for use in diesel engines.

Refined petroleum used as fuel for internal combustion engines.

An atmospheric heating phenomenon, caused by short-wave solar radiation being readily transmitted inward through the earth's atmosphere. Longer-wavelength heat radiation less readily transmitted outward, being absorbed by the atmospheric carbon di

A machine that converts one form of energy into another, especially mechanical energy into electrical energy, as a dynamo, or electrical energy into sound, as an acoustic generator.

Heat radiation from the sun converted into electrical power.

Any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as a fluid passing throu

A colorless, odorless, flammable gas, which the main constituent of marsh gas and the firedamp of coal mines. Obtained commercially from natural gas: the first member of the methane, or alkane, series of hydrocarbons.

A gas which is absorbed by the solar radiation creating the greenhouse effect, including carbon dioxide, methane, ozone, and the fluorocarbons.

A unit of power, equal to 1000 watts.

The use of the rise and fall of tides involving very large amounts of water at a slow speed to generate electric power.

The electrical power generated by a nuclear reactor.

A combustible mixture of gaseous hydrocarbons that accumulates over time in sedimentary rocks, especially those with petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and, so

Noting or pertaining to the action of hot, water solutions or gases within or on the surface of the earth.

The amount of power required to operate an electrical appliance or device.

A gaseous, liquid, or solid substance of biological origin that is used as a fuel.

A turbine powered by the wind.

Energy released by reactions within atomic nuclei, as in nuclear fission or fusion.

Something pertaining to the internal heat of the earth.

The difference in electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points.

Organic matter, especially plant matter, that can be converted to fuel and is therefore is a potential energy source.

A device in which a nuclear reaction is maintained and controlled for the production of nuclear energy.