Proposals

A map of the area selected for development is shown below:

Location map

Contains Ordnance Survey data © Crown copyright and database right 2013. Map not to scale, for illustrative purposes only.

 

The boundary of the proposed offshore development area shown here has changed since the original development plans were drawn up. These changes, announced in December 2012 and February 2014 respectively, were made in response to feedback received from public and statutory consultees during the rounds of public consultations that Navitus Bay conducted. To see how the boundary of the wind park has changed to date please click on the link below:

Download: PDF document, 127.33KB

Navitus Bay's planning application will include a range of turbine sizes, heights and quantities. This principle is known as the ‘Rochdale Envelope’ and is a well-established approach to planning consent for offshore wind parks in the UK. It is important that flexibility is allowed for the final configuration given that turbine technology is evolving at such a rapid pace.

This approach fixes key parameters, such as the maximum number of turbines, maximum dimensions and the maximum installed capacity of the project. It uses these parameters to assess the realistic worst case scenario. Whilst being robust when assessing potential environmental impacts, it allows us to construct the most efficient scheme available.

Project Statistics

arrowSite area


The total area of seabed that will be developed is 153 square kilometres (59 square miles).

arrowWater depth

This ranges from 32 metres to 53 metres.

arrowNumber of turbines

Between 121 and 194.

The maximum number of wind turbines will be 194, based on the use of 5MW turbines.

arrowSize of turbines

A maximum tip height of 200m and maximum rotor diameter of 176m (for an 8MW capacity turbine). Currently a 5MW turbine would be up to 177m to tip with a rotor diameter of 154m.

arrowTarget capacity

An approximate installed capacity of 970MW.

arrowElectricity generated

Electricity generated: In a typical year it is estimated that the Navitus Bay Wind Park could generate 3.0 terrawatt hours (TWh) of electricity a year. This is the equivalent of generating enough electricity for around 710,000 average UK households.

Based on DECC’s 2005-2011 average annual domestic household electricity consumption of 4,222kWh.
View source

The figure has been calculated with a site-specific capacity factor of 35%.

arrowCO2 emissions avoided

Approximately 1,290,000 tonnes of carbon dioxide per year.

Based on a figure of 430g CO2/kWh, calculated using Renewable UK’s “CO2 Reduction (pa) in Tonnes” methodology. View source

arrowDistance to shore from current proposed nearest points
DISTANCES TO SHORE FROM ORIGINAL AND PROPOSED OFFSHORE DEVELOPMENT AREA (KM)
Location
New site 
boundary (2014)
Old site 
boundary (2012)
Increase
Hengistbury Head/Christchurch
Bournemouth
Poole
Swanage
Durlston Head
Weymouth
Milford-on-Sea
Needles
Lymington
19.9
21.4
21.1
14.6
14.3
44.8
23.3
17.5
27.2
16.4
19.7
20.1
14.6
14.3
44.8
19.3
13.9
23.4
3.5
1.7
1.0
0.0
0.0
0.0
4.0
3.6
3.8
arrowAppearance from shore


Click here for viewpoints from various locations

 

Click here for frequently asked questions