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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. - PowerPoint PPT Presentation
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WIND ENERGY
By Tom Tarling
February 24th 2005
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.
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.
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.
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.
CURRENT GROWTH FROM 1999-2004
012345678
1999 2000 2001 2002 2003 2004
YEAR
EN
ER
GY
PR
OD
UC
ED
(P
J)
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.
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.
WORST CASE SCENARIO- 0.5 TURBINES A DAY
0
10
20
30
40
50
60
70
2000 2005 2010 2015 2020 2025 2030
YEAR
EN
ER
GY
CA
PA
CIT
Y O
F
WIN
D P
OW
ER
(P
J)
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.
SCENARIO ONE- 1 TURBINE A DAY
0102030405060708090
100110120130140150
2000 2005 2010 2015 2020 2025 2030
Year
EN
ER
GY
CA
PA
CIT
Y O
F
WIN
D E
NE
RG
Y (
PJ)
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.
SCENARIO TWO- 3.5 TURBINES A DAY
0
100
200
300
400
500
2000 2005 2010 2015 2020 2025 2030
YEAR
EN
ER
GY
CA
PA
CIT
Y O
F
WIN
D P
OW
ER
(P
J)
COMPARISON TABLE (PJ)
yr
rate
2010 2015 2020 2025 2030
0.5 a day
18.9 29.4 39.9 50.4 60.9
1 a day
35.1 61.0 86.9 112.8 138.7
3.5 a day
101.4 200.4 290.4 380.4 470.4
COMPARISON- ALL SCENARIOS
050
100150200250300350400450500
2000 2005 2010 2015 2020 2025 2030
1 a day3.5 a day0.5 a day
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.
