Wind Farm Calculator

Estimate the impact of a windfarm on: As well as the MW rating and number of turbines we need to know the load factor - the percentage of nominal output actually achieved.
The average UK figure is 27% although in 2010 it was less than 25%.

Turbine power MW   Number of turbines   Load factor %


Annual energy generation GWh or % of UK total energy consumption.

This could supply the energy needs of average households or the electricity only of

Carbon Dioxide

The maximum CO2 remission is calculated using the wind industry's figure of 430g/kwh.
However this now known to be highly optimistic beacuse fossil fuelled stations must be kept
running at low efficiency to make up for the intermittency of wind.
The maximum potential reduction is 1000 tonne of CO2 or % of UK total emissions.

This amount is produced by China every minutes
The reduction would be eliminated in hours by the expected world increase, mainly from Asia.

Estimated Economics

Annual revenue to company £ million
Annual income to landowners £ million
Annual `community benefit' £ thousand

Wholesale value of annual electricity production £ million.
Annual additional costs to electricity consumers £ million from
£ million in ROCs, plus additional indirect grid etc. costs £ million.