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Wind Power and Renewables / Power Generation Services / Energy Management
Siemens has received a further order for an offshore wind power plant from Scotland. The company is to supply, install and commission 84 wind turbines, each with a 154-meter rotor diameter designed to generate 7 megawatts (MW) of power, for the "Beatrice" project. Furthermore the scope of supply comprises the offshore grid connection to the mainland in consortium with Nexans who will supply the connecting export cables. Siemens will deliver the onshore and offshore substations consisting of two offshore transformer modules which are smaller in weight and size and thus saving costs. Siemens will also be responsible for service and maintenance for the wind turbines within the framework of a long-term service contract extending over a period of 15 years.
The substation of the grid access represents an important lever for reaching Siemens' goal of reducing the costs of wind power generated offshore to below 10 euro cts/kWh by 2020: Construction, transport, installation, operation and maintenance of the platform account for a high portion of the total grid access costs. Beatrice offshore wind power plant to be the first project equipped with Siemens' new Offshore Transformer Module (OTM®). This device is one third smaller in size and weight compared to a conventional alternating-current (AC) platform. This eliminates the need for a special heavy lift vessel and saves additional costs. Furthermore, installation time will be shortened by around 20 percent, also due to better availability of standard service operation vessels. The innovative device can be installed on its own independent wind turbine foundation.