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Oran Barr, Liam Devine and Diarmuid Molloy 9E

An Alternative Energy Resource For N.I. Oran Barr, Liam Devine and Diarmuid Molloy 9E. Alternative Energy Resource. Our alternative energy resource is Hydroelectric Power. How It Works?. A dam is built to trap water, usually in a valley where there is an existing lake.

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Oran Barr, Liam Devine and Diarmuid Molloy 9E

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  1. An Alternative Energy Resource For N.I Oran Barr, Liam Devine and Diarmuid Molloy 9E

  2. Alternative Energy Resource • Our alternative energy resource is Hydroelectric Power.

  3. How It Works? • A dam is built to trap water, usually in a valley where there is an existing lake. • Water is allowed to flow through tunnels in the dam, to turn turbines and thus drive generators. • Notice that the dam is much thicker at the bottom than at the top, because the pressure of the water increases with depth. • Hydro-electric power stations can produce a great deal of power very cheaply.

  4. Advantages • Once the dam is built energy is free • No waste or pollution such as co2 into the atmosphere. • More reliable than other renewable energy sources i.e. Solar, Wind and Tidal Power • Electricity can be generated constantly

  5. Disadvantages • Very Expensive to Build • Destroys Habitats by flooding upstream. • Few Suitable Sites. It needs a large volume of water. • Water Quality and Quantity Downstream can be affected, which can affect plant life.

  6. Why it is Better! • It is one of the most reliable renewable resources. Large rivers like the Bann and Foyle system contain a large volume of water and that is why we think these would be good places for dams. • It is more reliable than wind, tidal and Solar power because it can constantly generate energy.

  7. Conclusion • So we think that Hydroelectric Power is the best power as it is quite suitable for Northern Ireland because we have a lot of rainfall. • We chose this because it is more reliable and efficient than other renewable resources i.e. wind ,solar and tidal power because it can constantly generate energy.

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