Hydro Energy (P Corry)

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Hydro Energy (P Corry)

  1. 1. HYDRO ENERGY<br />Paul Corry DT117/4<br />
  2. 2. What we will cover<br />Facts about Hydro Energy<br />How hydro energy works<br />Compare Hydro energy to Burning Fuels<br />
  3. 3. Facts about Hydro energy?<br />Hydro energy is using water to generate energy<br />Hydro energy accounts for 20% of the worlds electricity<br />In countries such as New Zealand, Switzerland and other mountainous areas, over 50% of the electricity is generated by hydro energy.<br />
  4. 4. How does it work?<br />A dam is built to trap water where a source exists such as a lake or river in a valley<br />
  5. 5. Examples of Dams:<br />Hoover dam, built 1936, Las Vegas Nevada<br />Cost $49m to construct<br />
  6. 6. Poulaphouca dam, Wicklow Ireland, built 1930-1940<br />
  7. 7. How does hydro energy work?<br />The dam is built at a water source.<br />
  8. 8. How does hydro energy work?<br />The dam is built at a water source.<br />The water builds up behind the dam creating a reservoir.<br />
  9. 9. How does hydro energy work?<br />The dam is built at a water source.<br />The water builds up behind the dam creating a reservoir.<br />The water then reaches a level where it can run through tunnels in the dam <br />
  10. 10. The water then powers through tunnels in the dam which have turbines inside them.<br />Because of the pressure that the large water content builds up behind the wall, it powers through the tunnels when open<br />This water then turns turbines in the tunnels which generates the energy to power the generators above<br />
  11. 11.
  12. 12. Advantages:<br />Once the dam is built, it is virtually free to generate the energy.<br />No waste or pollution created by it compared to burning fuel or nuclear energy<br />More reliable than wind and solar power<br />Water can be stored to deal with demands<br />Electricity can be generated 24 hours a day<br />
  13. 13. Disadvantages: <br />Very expensive to build the dams <br />The construction of large dams can cause flooding in fields upstream<br />Choosing a site can be difficult<br />Water quality and quantity downstream can be affected, which can have an impact on plant life<br />
  14. 14. Comparing Hydro Energy to Burning Fuels<br />
  15. 15. MoneypointPowerstation, Co.Clare<br />Moneypoint is the 2nd biggest power station in the Country.<br />It accounts for approx 40% of customer demand across the country<br />And it employs around 300 people<br />It cost 1bn euro to construct<br />
  16. 16. Output rates:<br />Total output capacity of 915MW<br />These are delivered by 3 x 305MW steam-generating boiler plants <br />There is a new 368m euro renovation been carried out currently to help lower its emission levels<br />
  17. 17. HOWEVER!!<br />Aside of these impressive figures, there is an ugly side to this power plant!<br />
  18. 18. HOWEVER!!<br />Aside of these impressive figures, there is an ugly side to this power plant!<br />Figures from the EPA show that the emission levels between 2003 & 2005 were 16.8 million tonnes of Co2.<br />
  19. 19. HOWEVER!!<br />Aside of these impressive figures, there is an ugly side to this power plant!<br />Figures from the EPA show that the emission levels between 2003 & 2205 were 16.8 million tonnes of Co2.<br />It consumes 2 million tonnes of coal each year<br />
  20. 20. HOWEVER!!<br />Aside of these impressive figures, there is an ugly side to this power plant!<br />Figures from the EPA show that the emission levels between 2003 & 2205 were 16.8 million tonnes of Co2.<br />It consumes 2 million tonnes of coal each year<br />And a Sunday Independent study revealed that the emissions for the station will cause approx. €1bn worth of environmental damage!<br />
  21. 21. Compare this to Hydro Energy<br />ARDNACRUSHA DAM, CO. CLARE<br />
  22. 22. Ardnacrusha Dam, Co. Clare<br />There are ZERO greenhouse emissions<br />
  23. 23. Ardnacrusha Dam, Co. Clare<br />There are ZERO greenhouse emissions<br />It originally had a high enough output to power the county of Clare when first Built.<br />
  24. 24. Ardnacrusha Dam, Co. Clare<br />There are ZERO greenhouse emissions<br />It originally had a high enough output to power the county of Clare when first Built.<br />It now accounts for 2-3% of ESB’s energy requirements.<br />
  25. 25. Ardnacrusha Dam, Co. Clare<br />There are ZERO greenhouse emissions<br />It originally had a high enough output to power the county of Clare when first Built.<br />It now accounts for 2-3% of ESB’s energy requirements.<br />THE COST OF THE FUEL IS NOTHING!!!<br />Cost of construction was a little over 5m pound back in the 1920’s<br />
  26. 26. Which looks better?<br />Moneypoint<br />Ardnacrusha<br />
  27. 27. Which would you chose?<br />Limited coal, gas and oil supplies, rivers wont run out.<br />Less emissions from hydro energy<br />
  28. 28. Conclusion:<br />With our growing dependence on natural resources such as coal, gas and oil, and these in short supply, we must look elsewhere for an energy source.<br />
  29. 29. Conclusion:<br />With our growing dependence on natural resources such as coal, gas and oil, and these in short supply, we must look elsewhere for an energy source.<br />After my research, I would recommend that Hydro Energy is far more economical and easier on the environment than using fuel such as coal or oil.<br />
  30. 30. Thank You!  <br />Any Questions?<br />

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