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

Wind turbines displace CO2 emissions helping to reduce global warming

Out Newton Wind Farm in the North East