From the Wires
London Array: Siemens to Provide Grid Access for World's Largest Offshore Wind Farm
By: PR Newswire
Dec. 14, 2009 09:04 AM
The wind farm is being erected in the Thames estuary off the
Siemens will supply the electrical equipment for two offshore substation platforms, which will be installed right at the wind farm. The substations bundle the power generated by the 175 Siemens SWT-3.6 wind turbines, each rated at 3,6 MW, before it is transported via high-voltage subsea cable to the coast. On each of the platforms there are two 180-MVA transformers and medium-voltage switchgear. The requisite protection and instrumentation and control equipment is also installed on the platforms. Distribution over two platforms has the advantage that the cable routes within the wind farm are short, and power transmission losses are kept as low as possible to enhance the wind farm's energy efficiency.
Siemens will also prepare the requisite design studies for grid access for all of the wind farm's electrical components and prepare the grid studies to demonstrate fulfillment of grid access requirements.
The provision of energy-efficient grid access for
offshore wind farms is part of Siemens' Environmental Portfolio. In 2009,
revenue from the Portfolio totalled about
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