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: |
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 |
Array Circuit Configuration: |
South-facing at an angle of 28o to the horizontal, fixed to the roof skin of the halls |
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
|
Construction Start: |
Spring, 1997 |
Construction Completion: |
Autumn, 1997 |
Location: |
Roofs of the six trade fair halls (31-36) in the northern part of the complex |
Design/Planning: |
Bayernwerk; sub-project under the DM 100 million program "Bavaria and Future Energy" |
Structure: |
9 Modules in Series by 868 in Parallel (340-420 VDC) |
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 Reduction: |
Approx. 1,000 tons per year |
Expected Lifetime of the Plant: |
At least 20 years |