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Advantages & Disadvantages of Energy Resources. Geothermal. Advantages Low cost Inexhaustible No environmental impact Pumps can store heat for later use. Disadvantages: Source is close to volcanic activity. Some plants use lots of water – creating water pollution. Supply could change.
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Geothermal • Advantages • Low cost • Inexhaustible • No environmental impact • Pumps can store heat for later use. • Disadvantages: • Source is close to volcanic activity. • Some plants use lots of water – creating water pollution. • Supply could change. • Cannot be transported. • High start up cost.
BIOMASS • Advantages • Produces less harmful greenhouse gases. • Can be sustainable. • Can be used for different purposes. • Disadvantages: • Takes a lot of space. • Not entirely clean. • Expensive • Not easily transported.
Wind • Advantages • It’s free • Does not produce pollutants • Disadvantages: • Strength of the windmill varies. • Noisy/Unsightly • Large wind farms are needed to produce enough electricity.
NATURAL gAS • Advantages • Cleanest fossil fuel available. • Cheap. • Easy to transport • Disadvantages: • Contributes to greenhouse gases. • Explosive • Nonrenewable
Oil • Advantages • A small amount can produce a lot of energy. • Easy to transport and produce. • Constant power source and it’s reliable. • Disadvantages: • Creates greenhouse gases. • Pollution • Nonrenewable • Increase in violence.
Hydropower • Advantages • Stable source • Clean • Disadvantages: • Expensive to build dams • Droughts affect production • Environmental changes because of the dam.
Nuclear power • Advantages • Does not emit CO2 pollutants • Continuously generates electricity. • Disadvantages: • Expensive to start and maintain power plants. • Safety concerns. • Waste that remains toxic for many years. • Non-renewable
Chernobyl http://www.youtube.com/watch?v=ldYeFLZqh3Q