Kriegers Flak (wind farm)
| Kriegers Flak | |
|---|---|
 Location of Kriegers Flak in the Baltic Sea east of Møn
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| Country | Denmark |
| Location | Baltic Sea east of Møn, south of Skåne, north of Rügen |
| Coordinates | 55°01′34″N 12°56′20″E / 55.026°N 12.939°ECoordinates: 55°01′34″N 12°56′20″E / 55.026°N 12.939°E |
| Status | Proposed |
| Wind farm | |
| Type | Offshore |
| Site area | 179 km2 (69 sq mi) |
| Max. water depth | 25 m |
| Distance from shore | 15 km |
| Hub height | 125 m |
| Rotor diameter | 190 m |
| Power generation | |
| Units operational | 60 - 200 (proposed) |
| Make and model | 3 MW - 10 MW (proposed) |
| Nameplate capacity | 600 MW |
Kriegers Flak is a proposed 600 MW offshore wind farm to be located in the Baltic Sea on the Danish part of the reef of the same name. It will form part of a new 400 MW interconnector between Denmark and Germany.
In 2010 the Danish Energy Agency pointed to the site as one of the most attractive for a Danish offshore wind farm. In addition to favorable wind conditions and a depth ranging from 16 m to 25 m, Kriegers Flak will also be located next to the German offshore wind farm ″EnBW Baltic 2″. Kriegers Flak will take advantage of this and be connected both to the Danish grid as well as to the 288 MW ″EnBW Baltic 2″ which is connected via the 48 MW ″EnBW Baltic 1″ to the German grid. The wind farm will consist of two partitions, a western of 200 MW covering 69 km2 (27 sq mi) and an eastern of 400 MW covering 110 km2 (42 sq mi); a sand dredging area separates the two areas.
The Kriegers Flak Combined Grid Solution, a serial connection of offshore wind farms into the power grids of two different countries will be the first of its kind. This has the advantage that up to the capacity of the connection the produced power can be transmitted to the country with the highest demand and price, improving the economy of the wind farms. Secondly, the connection between Denmark and Germany can act as an interconnector, so power can be transmitted from one country to the other, also in absence of power production from the wind farms themselves. This improves the overall reliability of the power grids in both countries and can also reduce the overall price of the electricity.
The combined solution was scheduled to be direct current, but the offshore converter turned out to be prohibitively expensive, and alternating current (AC) was chosen instead. Like the 150 kV cables connecting the ″EnBW Baltic 2″, ″Baltic 1″ and Germany, the cables connecting Krigers Flak to ″Baltic 2″ and to Denmark will be relatively short and thus using AC which is more economical. However, Germany is part of the synchronous grid of Continental Europe, while Kriegers Flak will connect to eastern Denmark, which is synchronized with the Nordic grid. As such, the non-synchronous connection requires a paired, back-to-back HVDC converter substation, to be located in Bentwisch, Germany, which already hosts the converter substation for the Kontek interconnector. The transmission capacity will be 400 MW, with the converter substation being delivered by ABB for around 140M US$. Thus, when Kriegers Flak operates at its full 600 MW capacity at least one third of the produced power must be transmitted to Denmark.
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Wikipedia