A refinery process to convert natural gas or other gaseous hydrocarbons into longer-chain hydrocarbons, such as gasoline or diesel fuel.

Power plants use natural gas, the cleanest fossil fuel available. They have lower emissions thereby minimising the environmental impact. Gas power plants can run on natural gas, liquefied natural gas and liquefied petroleum gas.

A gas flare, alternatively known as a flare stack, flare boom, ground flare, or flare pit is a gas combustion device used in industrial plants such as petroleum refineries, chemical plants and natural gas processing plants.

A gas centrifuge is a device that performs isotope separation of gases.

A gas is a compressible fluid.

The world’s biggest wind farm, with a planned installed capacity of 20GW.

A gamma ray, or gamma radiation is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei.

Galvanic corrosion (also called bimetallic corrosion or dissimilar metal corrosion) is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte.

A galvanic cell or voltaic cell is an electrochemical cell in which an electric current is generated from spontaneous redox reactions.

Gallium arsenide is used in the manufacture of devices such as microwave frequency integrated circuits, monolithic microwave integrated circuits, infrared light-emitting diodes, laser diodes, solar cells.

Renewable synthetic fuels designed to replace fossil fuels to enable less harmful impact on the climate.

Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions.

a fuse cutout or cut-out fuse is a combination of a fuse and a switch, used in primary overhead feeder lines and taps to protect distribution transformers from current surges and overloads.

Used to protect a circuit from a surge or overcurrent condition, usually a one time use.

A method of decreasing the angle of attack of turbine blades to prevent rapid accelleration of the turbine during wind gusts.

In physics, a state of matter is one of the distinct forms in which matter can exist.

A functional requirement defines a function of a system or its component, where a function is described as a specification of behavior between outputs and inputs.

The term functional extra-low voltage (FELV) describes any other extra-low-voltage circuit that does not fulfill the requirements for an SELV or PELV circuit.

A functional earth connection serves a purpose other than electrical safety, and may carry current as part of normal operation.

A fumarole is an opening in a planet's crust which emits steam and gases such as carbon dioxide, sulfur dioxide, hydrogen chloride, and hydrogen sulfide.