Frequently asked questions
What is Hydrogen ?
Hydrogen is a chemical element with symbol H and atomic number 1. It is the simplest, most abundant and lightest element in the universe, constitutes about 75% of the universe mass. It was discovered and first documented in 1671 by Robert Boyle and was recognised as an element by Henry Cavendish in 1766.
How to produce clean Hydrogen ?
Clean hydrogen can be produced by passing electricity thrugh water to drive a chemical reaction to split water into its components (hydrogen and oxygen) in a process known as 'electrolysis'. The hydrogen is collected and the oxygen is released. If the electricity used for the electrolysis is from renewable sources such as solar and winds, the hydrogen produced is clean and has zero carbon. If fossil fuels with carbon capture and storage is used to produce hydrogen, the hydrogen is said to be produced with low to zero carbon emissions.
Hydrogen is an energy carrier - what does it mean ?
Like electricity, Hydrogen is not an energy resource, but is an energy carrier. Energy carriers allow the transport of energy in a usable form from one place to another. Both electricity and hydrogen can be produced from all energy resources available including natural gas, fossil fuels, biomass and renewables. Hydrogen has the highest energy content of any common fuel by weight (about 3x more than gasoline), but it has the lowest energy content by volume (about 4x less than gasoline).
What are the different Hydrogen type mean: brown, grey, blue, green and clean ?
The different colour of hydrogen's refer to the various sources and production processes it came from, and offe a type of certification, however, unregulated.
Is Hydrogen safe to use ?
Yes. Hydrogen is just as safe as any other transportation fuel (i.e. gasoline, diesel and natural gas). Any volatile substances when combined with an oxidizer (most commonly in air), in the right proportion will ignite to release energy in the form of heat. This is the principles of the conventional internal combustion engines that power our vehicles, heats our homes, cooks our food and uses for steel manufacturing. With the right system design, hydrogen systems can be designed to be no riskier than their conventional fuel counterpart.
What is a Fuel Cell ?
A fuel cell is an electrochemical device that converts hydrogen and oxygen into electricity. Basically fuel cell works like an electrolyser in reverse. Fuel cell electric vehicle use PEM fuel cell - proton exchange membrane. In its simplest form, a PEM fuel cell consists of two electrodes: the anode and the cathode, separated by a catalyt coated membrane.
What is Power-to-X (P2X) ?
Power-to-X (P2X) refers to where electricity produced from renewable energy is used to produce clean fuels and chemicals. P2X products cover hydrogen, ammonia, methane, oxyhydrocarbons, hydrogen peroxide and many other derivatives.
What are the benefits of Hydrogen Fuel Cells ?
Hydrogen can be burnt in a fuel cell to generate electricity, and in combustion engine, just like petrol, can be transformed into energy to move a car or produce electricity and/or heat.