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Fact Sheet: New Munich Trade Fair Center

Customer:

Solardach München Riem GmbH

General Contractor:

Siemens Solar GmbH

System Type:

Fixed Roof Mount, Grid Tied

Site Area:

38,100 m2 (six halls, 11,000 m2 each)

System SIze:

1,016 kilowatts (kW) DC

 

Total PV Array Area:

7,750 square meters (m2)

Number of Modules:

7,812 frameless 130 watts (W) solar modules with 84 monocrystalline silicon cells on each (SM130-L) made by Siemens Solar

Inverter:

(3) 330 kVA inverters set in master-slave-slave mode (alternating linked operation dependent on the power of the solar generator)

Utility Intertie:

4,000 VAC direct feed into 20,000 Volt transformer supplying medium voltage grid of the New Munich Trade Fair Center

Structure:

South-facing at an angle of 28o to the horizontal, fixed to the roof skin of the halls

Array Circuit Configuration:

21 Modules in Series by 372 in Parallel (340-420 VDC)

Design AC Energy Output:

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

Location:

Roofs of the six trade fair halls (31-36) in the northern part of the complex

Design and Planning:

Bayernwerk; sub-project under the DM 100 million program "Bavaria and Future Energy"

Project Costs:

Approx. DM 15 million

Investors:

Bayernwerk: 50%, Siemens: 10%, Utility "Stadtwerke München": 10%

Sponsors:

Bavarian States Ministry of Economics, Transports & Technology: 20%, Federal German Ministry for Education, Science, Research and Technology: 10%

Efficiency of Solar Cells

14.5%

Carbon Dioxide (CO2) Reduction:

Approx. 1,000 tons per year

Expected Lifetime of the Plant:

At least 20 years

 

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