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Power Stations

Solar Power.

Solar energy (called a Solar Photo Voltaic Power System)
generates electricity directly from sunlight.

A large scale solar energy plant in the sunny desert
producing as much electricity as a fossil fuel power station
would be a very fine thing indeed.
Please persuade whoever you can to get one (or more) built!

The original source of the energy is the Sun.


Advantages of solar power.

1.  It is renewable.

2.  It does not cause pollution.


Disadvantages.

1.  It does not work well when the sky is cloudy (less Sun).
It is does not work at night (no Sun).

2.  It is relatively expensive.
Solar cells produce electricity more expensively
than any other source except non-rechargeable batteries.
The future cost is expected to fall with
(i) higher levels of production (make more and they get cheaper)
(ii) improved technology (more electricity from the same amount of sunlight).

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Copyright © 2008 Dr. Colin France. All Rights Reserved.