The conversion of natural gas to a liquid form so that it can be transported easily. Typically, the liquid is converted back to natural gas prior to consumption.

A well that primarily produces natural gas.

The gauge of sheet steel is what determines its thickness. So, for example, a better quality steel will have a consistent gauge to prevent deformation or weak spots. 

Gas diffusion layers, typically made out of carbon paper or cloth, play a number of important roles in a fuel cell, such as structural support, reactant transport, water removal, and heat conduction.

The name Gigafactory comes from the word Giga, the unit of measurement representing billions. A Gigafactory is a term coined by Tesla founder Elon Musk to describe his first high-volume plant for producing lithium-ion electric battery cells, deep in the Nevada desert.

The metal content of an ore measured in grams per tonne or as a percentage.

Graphite is a grey crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors. Graphite also often goes into batteries for electric vehicles. Lithium-ion batteries use graphite anodes because they cope well with the flow of lithium ions during charging and discharging. There are three main types of graphite: Flake, Vein, and Amorphous

A rod made of graphite which serves to transfer the electrical energy from the power supply to the steel melt in the EAF bath.

Green ammonia is produced by ‎combining green hydrogen and nitrogen (from the air). Ammonia can be utilised as a hydrogen ‎carrier, providing advantages over transporting pure hydrogen.‎

A mill that is newly built rather than rebuilding an existing mill.

Green hydrogen is made by using a process called electrolysis to split water into hydrogen and oxygen. If that process is powered by a renewable energy source, such as wind or solar power, then the hydrogen is referred to as being green. Green hydrogen is produced from the electrolysis of water, using renewable energy. It can be used ‎as a fuel and energy source in hard-to-decarbonise industries. 

How much a customer will pay above the normal price to buy a low carbon product.

Behaviour that makes people believe that a company is doing more to protect the environment than it really is.

Grey hydrogen is the most common form of hydrogen, it's created from fossil fuels and the process releases carbon dioxide which is not captured.

Basic form of cast iron that is relatively easy and inexpensive to produce. Grey iron is suitable for making a wide range of castings including valve, pump, rail and auto applications.