Nordsee Ost

295.2 MW Fully Commissioned Germany

"We are using the reports extensively and have built an updated business plan."

Haico Halbesma, Oceanteam Shipping

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Latest Update: 24 November 2015
Due to strong winds of up to 27m/s, the wind farm has managed to export full capacity for the first time. Nordsee Ost produced 6,500 MWh of energy in just a single day, enough power to support 320,000 households. Read More
Project Details for Nordsee Ost
General Information Name Nordsee Ost correct
Other names Innogy Nordsee Ost correct
Country name Germany correct
Region Exclusive Economic Zone 1 (HelWin) (BSH Cluster 4 in Draft Network Plan) correct
Comments According to the 2014 draft of the Offshore Network Development Plan, Nordsee Ost will have a grid connection of 288MW to HelWin1 indicating that the wind farm will be overpowered.

The foundations were planned to be delivered from Norway four pieces at a time by a standardised North Sea barge. Storage capacity at load-out harbour Bremerhaven has been secured for 6 months where the foundations can be directly loaded onto the installation vessel.In reality, troubles were had concerning limited space at both the factory in Norway and in Bremerhaven for an extended period of time; the jackets were stored on barges for as long as possible.

RWE also agreed a twelve month storage contract for the array cable at its manufacturing yard in Sweden, and faced challenges when this contract expired yet were not ready to install the cable. The 63km of delicate subsea cable was moved to Landskrona for temporary storage.
Round (or category) correct
Development status Fully Commissioned correct
Comments on the status correct
Power & Turbines Notice any Errors? You can keep this an open resource by submitting corrections!
Project Capacity 295.2 MW correct
Turbine Model 6.2M 126 (Senvion) correct
Turbine Capacity 6.15 MW correct
Number of Turbines 48 correct
Total Turbine Height 159.5 m correct
Hub Height 96.50 m correct
Rotor Diameter 126 m correct
Foundation Grounded: Jacket (Ordered from Aker Solutions. Each foundation is up to 50 metres high and weights approx. 550 tons. Foundation pedestal covers almost 400 square metres.) correct
Windspeed 10 Year Mean Wind Speed (2000-2009) Available online now
Costs Stated Project Cost EUR(mill) 1300.00 correct
Location & Environment Sea name North Sea correct
Centre latitude 54.444° correct
Centre longitude 7.682° correct
Area 36 km2 correct
Depth range (Chart Datum) 22 m - 25 m correct
Depth range stated by developer 22 m - 26 m correct
Distance From Shore (reported) 57 km correct
Distance From Shore (computed from centre) 51.4 km correct
Ports Installation base Bremerhaven, Landskrona(array cables) correct
Ops and maintenance Helgoland correct
Grid Converter/Collector platforms HelWin1 Converter correct
Offshore transformers Nordsee Ost Substation correct
Grid connection point HelWin1 (alpha) offshore substation - Büttel (onshore) substation correct
Cable landing point Büsum correct
Export Cables
Please note that export cables connect the offshore transformer (substation) to either; shore or an offshore HVAC-HVDC converter station for onward transmission via HVDC cabling. Please see the converters page for planned converter stations and transmission cables.

The export cable length does not generally include the onshore component. The exception is when the onshore substation is close to shore.
Number of Export Cables 2 correct
Average length per cable 5 km correct
Transmission type (e.g. HVAC) HVAC correct
Nominal voltage 155 kV correct
Maximum voltage correct
Power rating correct
Number of cores 3 correct
Conductor type Cu correct
Section Area 400 mm2 correct
Insulation XLPE correct
Number fibre optics 30 correct
Export minimum bend radius (MBR) correct
Burial depth correct
Comments Export cable connects substation to HelWin1(alpha) platform correct
Onshore Cables Number of onshore cables correct
Average length per cable correct
Comments correct
Array Cables Array cable length 63 km correct
Estimated cable length LogIn
Transmission type (e.g. MVAC) MVAC correct
Nominal voltage 33 kV correct
Maximum voltage 36 kV correct
Burial depth 1.5 m correct
Number of cores correct
Conductor type Al correct
Section 8042.50 mm2 correct
Insulation correct
Power rating correct
Number of fibre optics correct
Minimum bend radius (MBR) correct
Comments correct
Benefits Homes powered annually 209077 correct
CO2 reduced per year 422545 tonnes correct
SO2 reduced per year 9827 tonnes correct
Expected life 25.0 years correct
Other Website Visit correct

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