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July 2012 Issue
OMM Completes Contract for German Offshore Powerlink
Offshore Marine Management, or OMM, (Bristol, England) has completed a contract for Prysmian Powerlink as preparations continue for the installation of BorWin2 cable, which will connect new wind parks off the coast of Germany, the company said in June.
Using the 2,000-tonne MV Bourbon Enterprise, OMM cleared the route for the 124-kilometer, high-voltage DC export cable that will connect the new wind parks to the onshore grid. This involved identifying out-of-service cables along the route and using a grapnel and chains set up to bring these cables onto the vessel for later disposal on shore.
OMM then conducted mattressing of the existing in-service underwater assets, including telecommunication and electricity cables and gas pipelines. Using an ROV launched from the vessel, OMM's team conducted a detailed survey of the seabed, before identifying the correct position for each mattress and then releasing each into its location. A survey confirmed that no interference with third-party assets had taken place.
OMM used the Bourbon Enterprise for a pre-lay grapnel run to clear the seabed of debris for cable installation.
The wind parks to be connected via BorWin2 will be among the largest built off the German coast, generating about 800 megawatts. OMM's work on BorWin2 follows similar work it completed on Germany's first high-voltage DC link, BorWin1.
Fugro Unveils Buoy For Marine Energy Industry
Fugro OCEANOR (Trondheim, Norway) has launched in June the SEAWATCH Wind LiDAR Buoy, a multipurpose buoy for the renewable energy industry.
The buoy is the result of a joint industry project involving Norwegian universities, research institutes, Statoil (Stavanger, Norway) and Fugro. It measures the speed and direction of wind across the diameter of wind turbine rotors in profile up to 300-meter heights, while additional oceanographic sensors measure ocean waves and current profiles.
The buoy is built on Fugro's SEAWATCH Wavescan platform, which includes the GENI controller, a power management unit and a ZephIR 300 lidar system. The ZephIR 300 provides measurements across the entire rotor diameter and beyond, and can be configured to measure up to 10 different heights, from 10 to 300 meters. Its low power consumption aids operation of a small, low-cost platform.
Validation of the SEAWATCH buoy took place off the coast of Norway. The tests were designed to compare wind data collected by the buoy to data from a similar lidar located on land and from a fixed met tower. Wind velocities up to 20 meters per second and wave heights up to 5 meters were recorded. The average deviation in wind speed measurements between the SEAWATCH buoy and the reference stations was less than 2 percent.
IHC Merwede Acquires Wave Rotor Tidal Turbine
IHC Merwede B.V. (Sliedrecht, Netherlands) signed in late May an agreement to acquire Wave Rotor technology from Ecofys Group (Utrecht, Netherlands). Wave Rotor technology will be managed by the newly established company IHC Tidal Energy (Alblasserdam, Netherlands).
Unlike most tidal turbines, the Wave Rotor is vertically oriented. It converts power from tidal currents and waves directly into electricity. The technology has been developed over the past 10 years and successfully
The Wave Rotor was brought through the precommercial stage by OceanMill, and IHC Tidal Energy's goal is to bring it to market.
1-Megawatt Tidal Turbine Completes Testing in Scotland
Andritz Hydro Hammerfest's (Hammerfest, Norway) HS1000 underwater tidal turbine has successfully completed initial testing in Orkney, Scotland, and is providing electricity for homes and businesses on the island of Eday, ScottishPower Renewables, or SPR, (Glasgow, Scotland) said in June. Installed in December, the 1-megawatt generator has achieved full export power in initial testing. A prototype device has been generating electricity in Norway for more than six years. SPR said it can power 500 homes annually.
The design is based on technology used in traditional onshore wind turbines, subsea oil and gas production, and hydropower plants. The turbine can be monitored from the European Marine Energy Centre base in Eday and can be operated and inspected from Glasgow using mobile connections and an onboard camera.
SPR plans to develop a 10-megawatt tidal array in Islay, having received planning consent from the Scottish government in March 2011.
The company began in June the construction of the Middleton wind farm near Newton Mearns, Scotland, to be completed early 2013. It will comprise six turbines of 105-meters maximum height, generating up to 12 megawatts, and is expected to meet the electricity demands of up to 6,800 homes.
SPR is working with Farrans (Construction) Ltd. (Belfast, Ireland) and turbine manufacturer Gamesa Corporación Tecnológica (Zamudio, Spain). Turbine deliveries to the site will start in September.
Scotland Opens Renewables Commercialization Fund to Bids
Scotland's £18 million Marine Renewables Commercialisation Fund (MRCF) to help develop the country's first commercial wave and tidal power arrays is now open for bids until August 1, First Minister Alex Salmond said in May.
Successful projects will be announced toward the end of the year. The MRCF is part of £35 million to be provided by the Scottish government to support the wave and tidal industry over the next three years.
Salmond also announced an initial £500,000 award for WB Westway (Glasgow, Scotland) from the £70 million National Renewables Infrastructure Fund to transform a strategic dock 10 miles from Glasgow's city center into a key renewable energy manufacturing site.
Salmond also announced a new center for CO2-enhanced oil recovery in Scotland to examine and develop opportunities for carbon capture and storage technologies.
2013: JAN | MARCH | MAY | JULY | SEPT | NOV
2012: JAN | MARCH | MAY | JULY | SEPT | NOV