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Oilfield Technology for Offshore Wind

Classification society DNV had granted an approval in principle for a new offshore wind energy concept developed by Dutch offshore design company Sea of Solutions in close cooperation with partner Sparcs Products. The concept, called F2F (Floating to Fixed), is an alternative to current fixed offshore wind installations and reduces the high operational costs related to offshore installation and maintenance. F2F is a flexible concept that is suitable for both shallow water and deepwater installation.
The DNV approved floating wind energy concept would reduce operational costs and is suitable for both shallow water and deep water installation.
The DNV approved floating wind energy concept would reduce operational costs and is suitable for both shallow water and deep water installation.

The F2F Wind Energy Concept is based on the philosophy to design a robust wind turbine unit based on proven offshore technology. Therefore the unit is constructed, pre-assembled and commissioned inshore, towed to the offshore location and fixed to the seabed by suction anchors. With this concept it is possible to refloat the entire unit again easily and haul it inshore for repairs and major overhauls. There is also no need for seabed preparation and it reduces the costs associated with offshore installation, maintenance and repair significantly as it is not dependent on dedicated equipment like jack-ups or wind turbine installation vessels. It also increases safety for installation and maintenance personnel.

Sea of Solutions is responsible for the technical design of the concept and followed the DNV step approach for new developments and the rules for offshore wind turbines. DNV granted the approval in principal in October 2006 and Sea of Solutions continued with the detailed design to build a prototype.

Current offshore wind technology is very much based on land technology that is extended to sea, said Sparcs director Willem van der Kooi. 'This industry is going through the same development cycle as the oil and gas offshore industry in the ‘70s and ‘80s. There is no need for that as proven technology is readily available to cut some corners.'

Sea of Solutions develops projects for operators, contractors and ship owners in the energy exploration, construction and production market, as well as the maritime transport market. It is a private company providing products and services on an independent and confidential basis. Beside designs for newbuild vessels and floaters, the company is actively involved in upgrade and conversion projects for existing offshore vessels.

Sparcs is a specialised service provider for the offshore industry offering project management and construction support. Besides rendering contract and claim management support, Sparcs also develops innovative concepts for the energy sector as well as being vessel and barge owner.

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The DNV approved floating wind energy concept would reduce operational costs and is suitable for both shallow water and deep water installation.

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