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Advantages
- Does not produce carbon dioxide and so does not contribute towards the greenhouse effect and global warming
- Does not produce sulfur dioxide or oxides of nitrogen and so does not contribute towards acid rain
- Zero fuel costs
- High efficiency of generation
- Can sell some back to the National Grid
- Roof-top Photovoltaics provide free electricity during daylight hours
- Domestic wind turbines provide free electricity when the wind is blowing
- Micro-water turbines provide free electricity from a small stream/river
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Disadvantages
- Erratic (unpredictable) energy supply
- Cannot generate large quantities of electricity in one place
- Many locations are very limited in which types of micro-generation can be used
- Some people object to the visual impact of wind turbines and solar panels
- Roof-top photovoltaics need to cover a large area to generate large amounts of electricity
- Domestic wind turbines cause an impact from the noise, and are also unsuitable for most locations - they need an un-interrupted, windy site
- Micro-water turbines need access to a stream or river
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