Hydrogen
Hydrogen
Hydrogen is the lightest element. So light in fact it can escape the Earth’s gravity and atmosphere.
Hydrogen
Hydrogen can be produced by passing electricity through salt water.
Engineers hope to be able to store energy from renewable electricity generators by producing hydrogen.
Hydrogen
Hydrogen produced by renewables could be transported long distances without the energy being wasted in the power cables.
Hydrogen
Hydrogen can also be produced from a special process called pyrolisis on plant material such as miscanthus grass or wood waste.
Hydrogen
Most of the hydrogen in the world currently is produced from natural gas and coal which are fossil fuels.
Hydrogen
There are two main ways that hydrogen gas can be used to produce energy. It can be used like petrol to power an engine or it can be used in a fuel cell to produce electricity.
Hydrogen
Burning hydrogen in car engines is a proven technology, and is relatively cheap. Only water is produced at the exhaust. The engines are at best 25% efficient.
Hydrogen
The hydrogen fuel cell was invented by Sir Robert Grove of Swansea in 1839.
Hydrogen
Fuel cells are able to create electricity with hydrogen as a fuel. There are no moving parts and they are around 60 % efficient.