Construction begins on Horns Rev 3

Construction work is set to begin on Denmark's largest offshore wind farm, Horns Rev 3, in October. The project will kick off when Vattenfall installs the first of a total of 49 foundations in the North Sea. When the offshore wind farm is complete, it will provide enough power to satisfy the annual electricity consumption of 425,000 Danish households.

It is the first time in five years that an offshore wind farm will be built in Denmark.

"Horns Rev 3 is the first of three offshore farms that Vattenfall will construct in Denmark in the coming years. These wind farms will, in the highest degree, contribute to our strategy to have a fossil free energy production within one generation ," says Gunnar Groebler, head of Vattenfall´s Wind Business.

The foundations consist of 40-50-metre 'monopiles' made of steel, with a diameter of 6.5 metres. The monopiles are driven about 30 metres into the seabed and will support MHI Vestas' 8.3 MW wind turbines that are presently some of the world's most powerful turbines.

At the beginning of October, the first four monopiles were loaded onto a special vessel, the Innovation, in the Netherlands and driven into the seabed. The next four monopiles will then be loaded in the Danish Esbjerg Harbour in mid-October.

The construction work will take place in an 88 square kilometers area in the North Sea, at least 34 km off the west coast of the Danish Jutland Peninsula.

Before the construction could begin, seabed preparations had to be carried out, including a geological survey and a subsequent detonation of old naval mines. Due to noise concerns, a support vessel is being used to place an air bubble installation on the seabed around the construction site. The installation creates a sound-absorbing, double layer of air bubbles that protect marine mammals in the area.

In addition to Horns Rev 3, Vattenfall will construct the Danish Kriegers Flak and Vesterhav South and North wind farms in the years ahead.


   

Facts Horns Rev 3:
-The farm will consist of 49 turbines able to meet the annual electricity consumption of some 425,000  Danish households
-The foundation consists of a 40-50-metre-long 'monopiles', which have a diameter of 6.5 metres and weighs up to 610 tonnes
-The 8.3 MW turbines are manufactured by MHI Vestas and are today one of the world's most powerful wind turbines
-The turbines are 187 metres high and have a rotor diameter of 164 metres
-Vattenfall won the contract for the construction of Horns Rev 3 in 2015
-The farm has a total capacity of 406 MW
   

For more information, contact:
Vattenfall Press Office +46 8 739 50 10 press@vattenfall.com
  

Vattenfall is a Swedish, state owned, energy company with more than 20,000 employees with operations in Sweden, Germany, the Netherlands, Denmark, UK and Finland. Vattenfall supports the transition to a renewable energy system and has the objective to become leading in sustainable energy production and thereby secure a reliable and cost effective energy supply.

See also

11 MW wind turbine blade transport. Photo: BMS
Photo: BMS

140 Wind turbines with a rotor diameter of 200 meters for Wind Farm Hollandse Kust Zuid

Vattenfall and Siemens Gamesa are working together on the development of the new 11 MW Siemens Gamesa wind turbines for offshore Wind Farm Hollandse Kust Zuid.

[Missing text '/newslistpagetemplate/NewsItemPage' for 'English']
Vattenfall Horns rev wind farm

Air Liquide first customer for offshore wind farm Hollandse Kust Zuid

Vattenfall has signed its first power contract for wind farm Hollandse Kust Zuid. Air Liquide will purchase 100GWh of fossil-free electricity per year from the wind farm located off the Dutc...

[Missing text '/newslistpagetemplate/NewsItemPage' for 'English']
Installing first turbine at Kriegers Flak

First turbine at Kriegers Flak offshore wind farm in place

The first turbine at the Kriegers Flak offshore wind farm is in place and will deliver the first fossil-free electricity shortly. It will be the largest offshore wind farm in Denmark.

[Missing text '/newslistpagetemplate/NewsItemPage' for 'English']