A2SEA is an offshore wind farm installation and services company based in Fredericia

Fredericia

Fredericia is a town located in Fredericia municipality in the eastern part of the Jutland peninsula in Denmark, in a sub-region known locally as Trekanten, or The Triangle...

, Denmark

Denmark

Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

. The company is specialized on transport, installation, and servicing of offshore wind farms. In addition to Denmark, the company has subsidiaries in the United Kingdom and Germany.

History

A2SEA was established in 2000. In 2001, M/S Ocean Ady (now: Sea Energy) and M/S Ocean Hanne (now: Sea Power) were converted into turbine installation ships. The company's first installation work was the Horns Rev 1 wind farm in the North Sea in 2002. In following years the company installed among others the Frederikshavn, Nysted

Nysted Wind Farm

The Nysted Wind Farm is a Danish offshore wind farm close to the Rødsand sand bank near Lolland. Gravity base foundations are used rather than piles due to ice conditions.-Rødsand I:...

, Arklow Bank

Arklow Bank Wind Park

The Arklow Bank Wind Park is the first offshore wind farm in Ireland and the world's first commercial application of offshore wind turbines over 3 megawatts in size. It is located on the Arklow Bank, a shallow water sandbank in the Irish Sea, around off the coast of Arklow with an area of...

, Scroby Sands

Scroby Sands wind farm

The Scroby Sands Wind Farm is a wind farm located on the Scroby Sands sandbank in the North Sea, off the coast of Great Yarmouth in eastern England, United Kingdom. It was commissioned in March 2004 by Powergen Renewables Offshore, a division of E.ON UK. It is expected to produce up to a maximum...

, Kentish Flats

Kentish Flats Offshore Wind Farm

The Kentish Flats Offshore Wind Farm is a wind farm located off the coast of Kent, England on a large, flat and shallow plateau just outside the main Thames shipping lanes. The distance from the nearest wind turbine to Whitstable is . The nearest turbine is away from Herne Bay...

 and Thanet, and got contracts for the installation works on London Array

London Array

The London Array is an offshore wind farm under construction in the outer Thames Estuary in the United Kingdom. With 1,000 megawatt capacity, it is expected to become the world's largest offshore wind farm. The site is off the North Foreland on the Kent coast in the area of Long Sand and...

 and Ormonde

Ormonde Wind Farm

The Ormonde Wind Farm is a wind farm west of Barrow-in-Furness in the Irish Sea. The wind farm covers an area of . It has a total capacity of 150 MW and is expected to produce around 500 GWh of electricity per year....

 offshore wind farms.

In 2009, the company was acquired by the Danish energy company DONG Energy

DONG Energy

-History:The Danish state company Dansk Naturgas A/S was founded in 1972 to manage resources in the Danish sector of the North Sea. After some years, the company was renamed to Dansk Olie og Naturgas A/S . At the beginning of 2000s, DONG started to extend itself into the electricity market by...

. In 2010, it was announced that Siemens Wind Power

Siemens Wind Power

Siemens Wind Power, or SWP, is a wind turbine manufacturer with headquarters and main production facilities established in 1980 in Brande, Denmark. SWP is wholly owned by Siemens of Germany since 2004 through the Renewable Energy division in the Siemens Energy sector...

 will acquire a 49% stake in the company at a price of DKK 860m. The deal needed an approval of regulatory authorities, which came on 13 October 2010.

In 2010, turnover was 586m DKK, while profit was 86m.

Fleet

A2SEA has fleet of two semijacked vessels (Sea Energy and Sea Power) and two jack-ups (Sea Jack and Sea Worker), all of them specially converted for offshore wind turbines installation. In 2010, A2SEA ordered a new semijacked vessel Sea Installer

Sea Installer

Sea Installer is an ordered offshore wind turbine installation jack-up vessels. She was ordered by A2SEA, a Danish offshore wind turbines installation company, and it will be built by Chinese COSCO Shipyard Group Co. The contract value is US$139 million.Sea Installer will have a length of ,...

which is the first specially designed wind generator installation vessel of its fleet.