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WIND ENERGY

WIND ENERGY. By Tom Tarling. February 24 th 2005. Wind resources over open sea (more than 10 km offshore) for five standard heights (ms -1 + Wm -2 ). 10m. 25m. 50m. 100m. 200m. > 8.0 > 600. > 8.5 > 700. > 9.0 > 800. > 10.0 > 1100. > 11.0 > 1500. 7.0-8.0 350-600. 7.5-8.5 450-700.

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WIND ENERGY

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  1. WIND ENERGY By Tom Tarling February 24th 2005

  2. Wind resources over open sea (more than 10 km offshore) for five standard heights(ms-1+ Wm-2) 10m 25m 50m 100m 200m > 8.0> 600 > 8.5> 700 > 9.0> 800 > 10.0> 1100 > 11.0> 1500 7.0-8.0350-600 7.5-8.5450-700 8.0-9.0600-800 8.5-10.0650-1100 9.5-11.0900-1500 6.0-7.0250-300 6.5-7.5300-450 7.0-8.0400-600 7.5-8.5450-650 8.0-9.5600-900 4.5-6.0100-250 5.0-6.5150-300 5.5-7.0200-400 6.0-7.5250-450 6.5-8.0300-600 < 4.5< 100 < 5.0< 150 < 5.5< 200 < 6.0< 250 < 6.5< 300 WHY WIND ENERGY IN UK? • Biggest potential for wind power in Europe With the UK shores having the highest wind speeds in Europe. • Potential to produce 828 PJ of energy.

  3. OFF-SHORE Vs ON-SHORE? • Off-shore Engineering costs higher than on-shore. • Off-shore planning easier as not on peoples land or near housing! • On-shore higher winds = more energy produced. • On-shore restricted amount of suitable land. • Off-shore greatest potential for growth in the future.

  4. WHAT ARE THE BENEFITS OF WIND? • Construction fairly quick. • Technology there and already being used. • 1186 turbines currently working in UK. • Planning in place for more. • Low interference. • Some support from public and NGO’s. • Cheaper electricity than nuclear and similar to coal.

  5. WHY ARE WE SO SLOW TO BUILD MORE? • Public opposition. • Mixed views on if they are eyesores or not? • The growth rate can’t keep up with the demand. • Improvements needed to the grid. • Planning permissions already being turned down.

  6. CURRENT GROWTH FROM 1999-2004

  7. SCENARIOS • For the scenarios I set out I will use the following pre-judgements. • Average power of wind turbine at 1.5Mw. • Load factor at 30%. • Three scenarios- Worst case, Possible, To meet government targets.

  8. WORST CASE SCENARIO- 0.5 TURBINES A DAY • This is just above the current rate of building. • Little extra financial support, still require planning to be accepted and improvements to grid. • Long way from government target. • Would mean by 2010 around 1281 turbines would be built producing around 18.9 PJ of energy.

  9. WORST CASE SCENARIO- 0.5 TURBINES A DAY

  10. SCENARIO ONE- 1 TURBINE A DAY • On basis of 1.5MW Turbine built every day from 2005. • Is the more realistic improvement to build rate. • Would require significant financial backing and improvements to grid. • Would mean by 2010 around 3,011 turbines in existence creating 35.11PJ of energy.

  11. SCENARIO ONE- 1 TURBINE A DAY

  12. SCENARIO TWO-3.5 TURBINES A DAY • Very optimistic/ unrealistic scenario • High financial support, No or little opposition. • Would meet government targets! But at what cost. Sustainable growth? • Would mean by 2010 around 7,573 turbines would be in operation creating 101.5PJ.

  13. SCENARIO TWO- 3.5 TURBINES A DAY

  14. COMPARISON TABLE (PJ)

  15. COMPARISON- ALL SCENARIOS

  16. CONCLUSION • Out of all the scenarios I see that the build rate of 3.5 turbines a day to be completely unrealistic and unachievable. • I would say that at the moment a rate of 0.5 a day would be possible with some improvements to the grid. • I feel that a rate of 1 a day is achievable with enough financial and government backing but maybe not straight away.

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