Nuclear power is non-renewable. Electricity made this way relies on a fuel called uranium, which is a metal found in the Earth's crust.
There are many areas in the world where uranium is mined, but the top spots are Canada and Australia.
A typical nuclear power station can make enough electricity for a city of 1 million people. In Europe, nuclear power is most popular in France - about 75 per cent of French electricity is made in nuclear power stations.
Unlike ordinary coal-, oil- or gas-fuelled power stations, nuclear power stations don't produce any climate-changing gases. They also need a lot less fuel than ordinary power stations, so our supply of uranium will last a lot longer than fossil fuels.
But there are problems. Mining and purifying uranium is not a clean process and fuel from nuclear power stations remains dangerously radioactive for hundreds of years after it has stopped being of any use.
Badly maintained nuclear power stations can cause a disaster. In 1986 the Chernobyl nuclear power station in Ukraine got out of control and a huge and dangerous radioactive cloud was released into the atmosphere.
Do you think the benefits of nuclear power make the risks worthwhile?
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Fascinating fact
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UK nuclear power
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Uranium mine
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Watch: Nuclear power
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