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The World's Largest Photovoltaic Rooftop Plant Supplies Power to the New Munich Trade Fair Center

The world's largest and most technically advanced rooftop photovoltaic plant has been installed on the hall rooftops of the New Munich Trade Fair Center. With a peak output of one megawatt, it will feed around one million kilowatt hours of solar power into the grid of the New Munich Trade Fair Center and thereby contribute to meeting the Center's own power requirements. In addition, all those involved hope that this unique project will send out a strong signal. It's prominent position means that the millions of international visitors to the site will see the plant as a showcase for photovoltaics and its possible uses.

The plant was built in record time of just seven weeks by Siemens Solar GmbH in collaboration with two Siemens AG Groups: Industrial Products and Technical Services and Automation & Drives. A total of 7,812 solar modules have been mounted on the roofs of the six northern halls of the New Munich Trade Fair Site. The particular key to rapid installation was the successful use of a new installation system with shockproof connectors. The solar modules manufactured in Munich were delivered to the installation site precabled, allowing rapid installation and safe electrical connection. The repetition effect was also a time-saving factor since six identical module arrays were installed. Finally, the continuing fine Autumn weather helped all those involved in the rapid installation of this large photovoltaic plant.

For this large project Siemens Solar GmbH has developed a special solar module with a peak output of 130 watts. It is frameless and consists of 84 monocrystalline silicon solar cells using the new Siemens TOPSTM technology. It is currently the only solar module on the market which is suitable for use in a large photovoltaic plant with only a single inverter.

This one-megawatt project sees the first use by Siemens of a three-unit 1000-kVA power inverter (series units from the range if Uninterruptible Power Supplies which switches the plant on and off depending on the power provided by the sun. This achieves technical and economic benefits. The lifetime of the inverter is increased around 60% and the utilization of the system is optimized. The plant was commissioned over a period of several weeks, during which Siemens Solar's engineers had the task of fine tuning the plant operation.

Siemens Solar GmbH is a Munich-based joint venture of Siemens AG (51%) and Bayernwerk AG (49%). It belongs to the Siemens Solar Group whose world market share of almost 20% makes it the leading company in the photovoltaics industry.

Contact:
Tina Nickerson at (805)388-6519
FAX: (805)388-6395

 

 

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