
Under the contract with Norwegian energy firms Statoil and Statkraft, Siemens will manufacture, supply, install and commission 67 6MW direct-drive wind turbines.
Siemens will commence turbine installation in 2017. The order includes a five-year service and maintenance agreement.
Siemens Energy wind power division CEO Markus Tacke said: "With Dudgeon we extend our project pipeline for this new turbine.
"This gives us the opportunity to further ramp up production capacity, which is a precondition to bring down the costs for offshore wind."
Located 32km north of the city of Cromer in North Norfolk, the Dudgeon offshore wind farm is expected to cost £1.5bn.
Upon completion, the wind farm will deliver enough energy for about 410,000 households in the UK.
Statoil owns 70% stake in the wind farm and Statkraft holds the remaining 30% stake.
Both the companies will initially build an onshore substation and lay cables on land before starting offshore construction in 2016.
Statoil will operate the wind farm, which is expected to be commissioned by the end of 2017.
The UK government awarded the license for the Dudgeon site in the Round 2 allocation in 2003.
Prior to Dudgeon facility, Statoil and Statkraft have also worked together to develop and operate the 317MW Sheringham Shoal offshore wind farm, which is located 9 to 17 miles off the coast of Sheringham, Norfolk.
Image: Siemens will supply 67 6MW turbines for the Dudgeon offshore wind farm. Photo: Courtesy of Siemens.