The 269-turbine MeyGen Project

Jee Ltd has been awarded phase two of a contract with Scottish Enterprise, which will see the leading independent multi-discipline subsea engineering and training firm undertake the demonstration of their innovative “U-tube” solution in Scottish tidal waters.

In September 2014, Jee secured a phase one contract with Scottish Enterprise, which involved a pioneering study for the marine energy industry in Scotland. The contract tasked companies with developing solutions for locating, securing, protecting and recovering electrical array cables for tidal energy installations.

Jee’s protection system, the “U-tube”, features a pipe fixed to a J-tube which is secured to the turbine foundations at each end of the pipe. The cable is then pulled vertically into one of the J-tubes and through the pipe using a pre-installed messenger and winch line. Once the cable is pulled in, connections are made to the turbine nacelles using wet-mate connections. The “U-tube” system provides the marine contractor with full control of the cable installation, which can be stopped and reversed if necessary offering a high level of flexibility. It also provides a wider weather window for the cable installation, which allowed Jee to overcome one of the biggest challenges of the project.

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