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ABB wins wind power orders worth USD 32 million from Renova Energia
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Wednesday, 19 Jan 2011

ABB announced that it has won orders worth USD 32 million to supply five new transformer substations and build overhead transmission lines to serve 14 wind farms with a generation capacity of about 300 MW. The orders were placed in the fourth quarter of 2010 by Renova Energia SA, a Brazilian power company specializing in the generation of electricity from renewable resources such as wind and small hydro power plants.

ABB will design, engineer, supply, construct and commission the substations, and also train customer operators and maintenance staff. The delivery includes five turnkey 34.5/69 kilovolt substations including 12 step up power transformers rated at 33 mega volt ampere, air and gas insulated switchgear, medium voltage re closers and distribution transformers. ABB will also supply and install 60 kilometers of 69 kV overhead transmission lines to connect a 290 MW wind power plant to the national electricity grid that is currently under construction in the northeastern state of Bahia. The project is scheduled for completion in 2012.

Brazil has traditionally relied heavily on hydropower for its electricity supply. This project is part of the government's efforts to promote wind as an integral part of its renewable energy portfolio. The Brazilian Wind Energy Association aims to install 10 GW of wind energy by 2020. The country currently has around 600 MW of wind capacity, with another 450 MW under construction.

Mr Peter Leupp head of ABB's Power Systems division said that "These substations will facilitate the integration and transmission of renewable wind energy to serve growing electricity needs in the region. They will also help strengthen the reliability of the grid and secure power supplies."

Step up transformers will increase the voltage of wind generated power to match the distribution grid. To reduce the impact of faults resulting from the integration of wind power to the grid, re closers are used to isolate the problem and prevent an outage cascading across the network.

Substations are key installations in the power grid that transform voltage levels and facilitate the efficient transmission and distribution of electricity. They include equipment that protects and controls the flow of electrical power.

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