Energy Inset 2The ii Energy Glossary contains explanations of some key industry terms for energy investors, strategists and non-technical readers





Hydrogen economy

The hydrogen economy is a term coined in the 1970s to describe a proposed system for deliving energy using hydrogen. One of the benefits of hydrogen is that, when burned, it is a cleaner fuel than traditional fossil fuels.


Fracking is a process in which oil and gas-bearing geological structures are fractured using a high pressure mix of water and other chemicals. The technique allows the oil and gas to be released, but typically also requires large volumes of water to be used, which has prompted environmental concerns.