Wind Energy

3,450 views

Published on

Published in: Business, Technology
0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
3,450
On SlideShare
0
From Embeds
0
Number of Embeds
85
Actions
Shares
0
Downloads
0
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

Wind Energy

  1. 1. Wind energy 2004
  2. 2. Textbook pg 57 - 58 The wind speeds are higher in the west of the country In Britain there are more days when winds blow from the west than from any other direction so there are more days when the wind turbines can be operated. Higher up wind speeds are faster and there are fewer obstacles to block the wind. In areas with high and regular wind speeds. Found in exposed coastal locations or in remote upland areas REASON WIND REQUIREMENTS
  3. 3. Advantages <ul><li>Safe, clean, renewable form of energy </li></ul><ul><li>No air pollution or waste materials produced – does not contribute to global warming or acid rain </li></ul><ul><li>Minimal effect on local ecosystems. Land may be farmed at the same time. </li></ul><ul><li>Winds are stronger in winter when demand for electricity rises </li></ul><ul><li>After initial construction, electricity production is relatively cheap </li></ul><ul><li>Wind farms provide a source of income for farmers and may attract industry in isolated rural communities. </li></ul>
  4. 4. Disadvantages <ul><li>30m tall – visual concerns especially if grouped together on ‘wind farms’ </li></ul><ul><li>Expensive to build and maintain </li></ul><ul><li>Wind does not blot all the time </li></ul><ul><li>Hum noise and can interrupt radio and TV signals </li></ul><ul><li>Turbine blades when they rotate may cause strobe light effect to local residents </li></ul>
  5. 5. CASE STUDY - Lambrigg wind farm Cumbria. <ul><li>There are 5 turbines which generate 6.5 megawatts of electricity – enough for 4000 homes. </li></ul><ul><li>On high land 260m above sea level, near the top of a ridge so there are high wind speeds. </li></ul><ul><li>It is on the western side of Britain so it is directly in the path of the prevailing winds. </li></ul><ul><li>Land is moorland and so the farmer can continue to graze his sheep whilst also receiving a rent from National Wind Power. </li></ul><ul><li>Existing electricity transmission line means no extra costs needed to feed the power into the National Grid. </li></ul><ul><li>Next to Jct 37 on M6 and main A684 – building costs of access roads were low. Roads needed for transporting of turbine towers and blades. </li></ul><ul><li>National Wind Power Ltd has developed a ‘good neighbour policy’ grants have been given locally and links made with local schools </li></ul>
  6. 6. ENVIRONMENTAL CONCERNS. <ul><li>They are not built where they would spoil the natural beauty of National Parks. </li></ul><ul><li>Turbines are on the eastern side of the ridge and so are hidden from tourists and residents in S. Cumbria. </li></ul><ul><li>Turbines are positioned just below the top of the ridge so that only some of the blades can be seen on the skyline. </li></ul><ul><li>Local population did not object on noise grounds as the nearest house is 1km away and noise of turbines is drowned by noise of traffic on M6. </li></ul>
  7. 7. Exam questions 2004H Q3a Using Figure 3, suggest why people have different views about Kirby Moor Wind Farm (3 marks)
  8. 8. 2004H Q3a Using Figure 3, suggest why people have different views about Kirby Moor Wind Farm (3 marks) <ul><li>People may be in favour of the site because the turbines only cover a very small area of land </li></ul><ul><li>The turbines produce 80% of Ulverston’s electricity needs </li></ul><ul><li>It will prevent 12,000 tonnes of CO2 entering the atmosphere. </li></ul><ul><li>This will mean that 200 tonnes less acid rain is produced so there is less pollution </li></ul><ul><li>People may be against the wind farm because it is situated within a SSSI </li></ul><ul><li>The turbines are 25m high with rotors 35m in diameter and so will not be aesthetically pleasing </li></ul>
  9. 9. 2004F Q3a Name two advantages of the Kirby Moor Wind Farm (2 marks) b. Name one possible disadvantage suggested in Fig. 3 (1 mark)
  10. 10. <ul><li>(2 of) </li></ul><ul><li>Turbines take up less than 1% of the land. </li></ul><ul><li>Produces 80% of Ulverston.s electricity needs. </li></ul><ul><li>Prevents 12 000 tonnes of carbon dioxide entering the atmosphere per year. 200 tonnes less acid rain </li></ul><ul><li>produced. (2 marks) </li></ul><ul><li>(b) (1 of) </li></ul><ul><li>Built in an SSSI. </li></ul><ul><li>Visual impact. </li></ul><ul><li>Very large (detail of size, direct lift). </li></ul><ul><li>Accept reference to visual or noise pollution. </li></ul><ul><li>(1 mark) </li></ul>
  11. 11. H Q3b Study fig 4 which shows the location of some wind farms in the UK Explain why these locations are likely to have been chosen F Q3c Study fig 4 which shows the location of some wind farms in the UK Using figure 4 and your own knowledge, explain the locations of wind farms in the UK
  12. 12. H Q3b Study fig 4 which shows the location of some wind farms in the UK. Explain why these locations are likely to have been chosen <ul><li>Level 1 Basic 1-2 marks </li></ul><ul><li>Simple statements without any evidence of the use of Figure 4 </li></ul><ul><li>High land </li></ul><ul><li>High wind speeds </li></ul><ul><li>Coastal. </li></ul><ul><li>Level 2 Clear 3-4 marks </li></ul><ul><li>Found on the western edge of Great Britain on the highlands such as Wales, Lake District and Pennines as prevailing winds over Britain are from the west. </li></ul><ul><li>Much of these areas are moorland where the traditional farming is hill sheep. This can continue where there are wind farms as the sheep can continue to graze the area. </li></ul><ul><li>May provide an additional income for the sheep farmer. </li></ul><ul><li>(4 marks) </li></ul>
  13. 13. F Q3c Study fig 4 which shows the location of some wind farms in the UK Using figure 4 and your own knowledge, explain the locations of wind farms in the UK <ul><li>Level 1 Basic 1-2 marks </li></ul><ul><li>Simple statements without any evidence of the use of Figure 4 or entirely based on Figure 4 – no use of own knowledge. </li></ul><ul><li>High land </li></ul><ul><li>High wind speeds </li></ul><ul><li>Coastal. </li></ul><ul><li>Level 2 Clear 3-4 marks </li></ul><ul><li>Evidence of the use of the map and their own knowledge. </li></ul><ul><li>Found on the western edge of Great Britain on the highlands such as Wales, Lake District and the Pennines. Prevailing winds over Britain are from the west. </li></ul><ul><li>Much of these areas are moorland where the traditional farming is hill sheep. This can continue where there are wind farms as the sheep can continue to graze the area. </li></ul><ul><li>May provide an additional income for the sheep farmer. </li></ul><ul><li>(4 marks) </li></ul>
  14. 14. Inquiry into wind turbines starts 450ft wind turbines plan unveiled Wind turbines could double height

×