|
The site would consist of six two megawatt turbines, with tower heights of approximately 80 metres and rotor diameters of approximately 92 metres.
These dimensions will provide a maximum height to blade tip of approximately 126 metres, a typical size of modern turbines. This turbine type was chosen to match the wind climate of the area.
| Number of turbines |
6 |
|
| Rating of turbines |
2 |
MW |
| Wind farm size |
12 |
MW |
| Predicted output |
28,908 |
MWhr p.a. |
| Average Households supplied |
6,585 |
|
| Carbon dioxide saved |
15,755 |
tonnes p.a. |
| |
|
The capacity factor used in these calculations is 27.50%.
|
How the figures are calculated
1) Predicted Output
capacity of wind farm (MW) x capacity factor
x
hours per annum (8,760 hours)
=
predicted output (MW hours per annum)
‘Capacity factor’ is the % of the wind farm’s maximum output expected over a year. 100% would mean that the wind turbines were generating their maximum output all the time, a little like driving a car at maximum speed all the time. In reality, the wind is usually blowing and the wind turbines generate electricity most of the time, at a lesser proportion of their maximum possible output.
2) Households Supplied
predicted output
÷
average UK electricity consumption per household per annum
=
number of households electricity needs supplied
3) Carbon dioxide emissions avoided
wind farm output
x
carbon dioxide savings per kWH
=
carbon dioxide emissions avoided
|
Animals and wind energy schemes co-exist amicably
|
