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Customer:
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Solardach München Riem GmbH
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General Contractor:
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Siemens Solar GmbH
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System Type:
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Fixed Roof Mount, Grid Tied
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Site Area:
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38,100 m2 (six halls, 11,000 m2 each)
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System SIze:
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Total PV Array Area:
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7,750 square meters (m2)
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Number of Modules:
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7,812 frameless 130 watts (W) solar modules with 84 monocrystalline silicon cells on each (SM130-L) made by Siemens Solar
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Inverter:
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(3) 330 kVA inverters set in master-slave-slave mode (alternating linked operation dependent on the power of the solar generator)
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Utility Intertie:
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4,000 VAC direct feed into 20,000 Volt transformer supplying medium voltage grid of the New Munich Trade Fair Center
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Structure:
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South-facing at an angle of 28o to the horizontal, fixed to the roof skin of the halls
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Array Circuit Configuration:
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21 Modules in Series by 372 in Parallel (340-420 VDC)
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Design AC Energy Output:
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1,000,000 kWh per year (4% of the Trade Fair Center requirement, over 50% when there are no events), average energy needs of 340 German households
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Location:
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Roofs of the six trade fair halls (31-36) in the northern part of the complex
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Design and Planning:
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Bayernwerk; sub-project under the DM 100 million program "Bavaria and Future Energy"
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Project Costs:
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Approx. DM 15 million
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Investors:
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Bayernwerk: 50%, Siemens: 10%, Utility "Stadtwerke München": 10%
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Sponsors:
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Bavarian States Ministry of Economics, Transports & Technology: 20%, Federal German Ministry for Education, Science, Research and Technology: 10%
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Efficiency of Solar Cells
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14.5%
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Carbon Dioxide (CO2) Reduction:
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Approx. 1,000 tons per year
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Expected Lifetime of the Plant:
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At least 20 years
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