Choosing energy sources
A number of different energy sources exist. Some of these are renewable and some are not. All of us have difficult choices to make when using energy, though it is clear that a mix of sources will need to be used.
Our renewable energy resources will never run out. Their supply is not limited. There are no fuel costs either. And they typically generate far less pollution than fossil fuels.
Renewable energy resources include:
However, there are some negatives to generating renewable energy. For example, wind farms are noisy and may spoil the view of people who live near them. The amount of electricity generated depends on the strength of the wind. Also, if there is no wind, there is no electricity.
There is a limited supply of non-renewable energy resources, which will eventually run out. They include:
Fossil fuels release carbon dioxide when they burn, which adds to the greenhouse effect and increases global warming. Of the three fossil fuels, coal produces the most carbon dioxide, for a given amount of energy released, while natural gas generates the least.
The fuel for nuclear power stations is relatively cheap. But the power stations themselves are expensive to build. It is also very expensive to dismantle old nuclear power stations or store radioactive waste, which is a dangerous health hazard.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.