Key facts
Interesting facts and figures about the wind farm, at a glance.
Wind turbines
Wind turbine generators
116
- Installed capacity 400MW
- Rating per turbine 3.45MW
- Turbine height to hub 80m
- Turbine height to blade tip 140m
- Length of blades 55m
- Diameter of blades 112m
Foundations
Monopile foundations
116
- Foundation weight 550-800tonnes
- Foundation length 60-80m
- Transition piece weight 250tonnes
Cables
Of buried onshore cables
27km
- Inter-array cables (total) 144km
- Array cables strings each with nine to 10 turbines 12
- Array cable voltage 33kV
- Length of offshore export cables 16km
- Onshore cable voltage 150kV circuits
Offshore substation
offshore substation
1
- Offshore substation weight 3000tonnes
- Offshore substation converts power to 150kV
- Onshore substation converts power to 400kV
- Substation jacket foundation weight 900tonnes
Project benefits
- Annual power generation 1 1,400GWh
- UK homes supplied equivalent (approx.) 2 350,000
- Approx emission reductions per annum 3 600,000tonnes
- Assumed capacity factors for offshore wind, The Contracts for Difference (Standard Terms) Regulations August 2014, DECC. Generation: 400MW x 0.39 x 8760 x 1,000 = 1,366,560,000KWh / 1,367GWh pa)
- Based on an average annual domestic household electricity consumption of 3,938 (BEIS)
- Every unit (kWh) of electricity produced by the wind displaces a unit of electricity, which would otherwise have been produced by a power station burning fossil fuel. This calculation is made using a static figure of 430g CO2/kWh representing the energy mix in the UK.