The process of releasing trapped natural gas from shale rocks. Fracking involves pushing high-pressure liquids underground to cause the shale rocks to crack
Water is pumped deep underground to be heated by magma plumes or radioactive rocks. The hot water creates steam, which turns turbines to generate electricity
Primary energy that can be re-used to produce electricity or has a short lifetime, therefore any used can be replaced quickly e.g. Hydroelectric, biomass, solar
Energy which is powered by the changes of the tide. Turbines are built on the seabed which are turned by the water when the sea goes out or comes in as the tides change
Energy created by waves. Small turbines are located in buoys which float on the surface of the sea. The waves pass through the turbines and create electricity