Horns Rev 3 offshore wind farm

Horns Rev 3 will consist of 49 wind turbines with a total capacity of 406.7 MW, which can generate power equivalent to the annual consumption of 425,000 Danish households.

Enlarged version of the map

The wind farm has been established within an 88 square kilometre area 2944 kilometres west of Houstrup Strand on Jutland's west coast. Just like the other two Horns Rev wind farms, Horns Rev 3 will be placed in an optimal wind area.

Water depth influences costs

The area is restricted first and foremost out of consideration for the water depth, because the water depth has great significance for the costs of the establishment. The deeper it is, the more expensive. In the selected areas, the water is between 1021 metres deep. In consideration for wind conditions, the area is also restricted to the south with at least two kilometres' distance to Horns Rev 2. To the north, the area is bordered by oil and gas pipelines from the Danish part of the North Sea. A military exercise area and power transmission cables have also been relevant to the placement.

The maximum height (top of the rotor blade tip) on the 8.3 MW turbines will be 187 metres and its visibility from the shore will be limited. The transformer platform is expected to rise almost 30 metres over the surface of the sea. From the transformer, energy production will be led to shore at Houstrup Strand via a cable.

Facts and figures

Horns Rev 3 offshore wind farm Operational in 2019
Number of turbines 49
Turbine type V164-8,0MW
Supplier MHI Vestas
Capacity per turbine 8,3 MW
Total capacity 406,7 MW
Annual production 1.700.000.000 kWh
Maximum height 187,1 meter
Rotor blade length 80 metres
Rotor diameter 164 metres
Nacelle 20.7 metres long
9.3 metres high
8.7 metres wide
Rotor blade weight 33 tonnes
Nacelle weight 381 tonnes
Tower weight 350 tonnes
Foundation weight 420–706 tonnes
Total weight per turbine 1,184–1,470 tonnes
Cut-in wind speed 4 m/s
Nominal speed approx. 14 m/s
Cut-out wind speed 25 m/s
Water depth 11–19 metres
Distance from shore 29–44 kilometres
Distance between turbines 1,1–1,5 kilometres
Wind farm area 88 km2
Price More than 7,5 billion DKK
Last updated: 2016-06-27 16:47