# Renewable Energy Sources – A resource which is not diminished when it is used; it recurs and cannot be exhausted (inexhaustible) Examples of renewable energy sources are wind, tidal and solar energy

A way of memorising what renewable energy sources are is to remember what the opposite is, i.e what is non-renewable. Non-renewable energy sources are easier to remember. What cannot be renewed is coal, oil and gas.

Nuclear energy is usually considered to be a non-renewable energy source. This is because, although nuclear energy itself is renewable, the material used in nuclear power plants is not.