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Sources of energy

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Introduction

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Almost all of the energy we use comes from non-renewable sources. They are by far the quickest and easiest method of generating the large amounts of energy, which keep the planet's richer human communities moving. But they have two insoluble problems associated with them: the large amounts of pollution and the eventual drying up of supplies. In contrast renewable energy sources have huge, but mainly untapped, potential.

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Non-Renewable Energy Sources

All non-renewable energy sources create pollution, in part due to their extraction from the crust of our planet but mainly from their burning. Only two types exist: the fossil fuels (coal, oil and natural gas) and nuclear fuels (uranium etc).

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Middle

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Solar - collectors

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Every day, some cloud ok

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Wood burning

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7 years or more

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Conclusion


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To generate the same amount of electricity as a large modern thermal power station, you'd need: image01.png

150 square kilometres of solar panels

300 60-metre diameter wind turbines

100 kilometres of wave energy converters

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