UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
Welcome to EI Knowledge
Explore a large and diverse collection of energy information
EI Knowledge is the centre for energy knowledge at the EI. We provide accurate and balanced energy information to support your work or studies. We also carry out our own research and engage EI members to create new sources of information and inform energy policy. Explore our resources by typing your query the search box above, browsing our collections and searching our eLibrary. Do you have a research request or question to ask? Click here to contact us.
Featured
The A to Z of the Energy Transition: K is for kilo Watt, kilo Watt hours and other units of power and energy!
05 June 2025
The A to Z of the Energy Transition: J is for Just Transition
22 May 2025
The A to Z of the Energy Transition: I is for Investment, Infrastructure and Insurance
08 May 2025
The A-Z of the energy transition: H is for Hydrogen
24 April 2025
Discover our new eBooks covering climate finance, energy poverty, policy, critical minerals and the transition in ASEAN
01 April 2025
Read: Fusion 101: A game-changer for future energy supply
17 March 2025