Solar Energy
Physics: AQA GCSE Higher, topic 1.3.8
Solar Energy
The electromagnetic waves emitted by the sun (e.g light), transfer energy to the earth. Solar cells absorb these waves and create an electric current without a generator. Some solar cells use heat from the sun to boil water, create steam and rotate a turbine, which turns a generator.
Advantages
- Renewable.
- Produces no greenhouse gases.
- Produces no noise pollution.
Disadvantages
- Only produces electricity when there is sunlight.
- High cost of installation.
- Solar cells are currently not very efficient at converting sunlight into energy.
Test yourself on Solar Energy
Which of the following would NEVER be used in a solar power process?
Some features of solar energy are that it is...