UKWED Figures explained

RenewableUK's Wind Energy Database (UKWED) is the most definitive database on UK wind energy projects. It contains data about operational onshore and offshore wind projects. We update this database as we receive new information.

Please note that UKWED only holds information on projects of 100kw and larger.

RenewableUK publishes statistics on micro, small and medium wind turbines annually in our "Small and Medium Wind UK Market Report" which can be found here.

Press releases on these reports can be found in our Media Section.

  1. Projects

    807

Projects
The number of operational wind energy projects.

  1. Turbines

    6,129

Turbines
The number of operational wind turbines.

  1. Onshore Capacity (MW)

    8,161

Onshore Capacity (MW)
The total installed capacity of onshore wind farms.

  1. Offshore Capacity (MW)

    4,049

Offshore Capacity (MW)
The total installed capacity of all offshore wind farms.

  1. Energy Produced (MWh)

    29,756,161

Energy Produced (MWh/p.a.)

This is calculated by multiplying the installed capacity in MW by the number of hours in a year (8760) and then multiplying this by DECC’s long-term average capacity factor for (onshore + offshore) wind (27.82%) expressed as a fraction of 1 (e.g. 0.2782). Source for capacity factors is Digest of United Kingdom Energy Statistics (DUKES) published annually by DECC.

  1. Homes Powered Equivalent

    7,098,321

Homes Powered Equivalent (p.a.)
This is calculated using the most recent statistics from the Department of Energy and Climate Change showing that annual UK average domestic household consumption is 4,192kWh.

  1. CO2 reductions (pa) in Tonnes

    12,795,149

CO2 Reductions (p.a.) in Tonnes
RenewableUK uses DECC’s carbon saving figure of 430g/kWh. More information. Carbon reduction is calculated by multiplying the installed wind energy capacity in megawatts by the average (onshore + offshore) load factor as a fractional percentage of 1 (e.g. 0.2782), multiplied by the number of hours in the year (8760), multiplied by the number of grammes of CO2 saved per kilowatt hour, divided by 1000 (to align the units, as grammes of CO2 is expressed in kWh). So for a generic 2MW turbine: 2 x 0.2782 x 8760 x 430 / 1,000 = 2,096 tonnes of CO2 per year, assuming an average load factor (onshore + offshore) of 27.82%.

        Load Factors

The load factor is the actual output of a turbine benchmarked against its theoretical maximum output in a year. The load factor is calculated by RenewableUK as a rolling average of the past five years using data from the Digest of UK Energy Statistics published by the Department of Energy and Climate Change annually in July.

  • For onshore wind this is 25.74%
  • For offshore wind this is 33.56%
  • The load factor for all wind (onshore + offshore) is 27.82%