Siemens Solar Panels direct from
Bullnet
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1,000 Roofs Program
The German "1,000 Roofs" program is designed to promote the purchase and installation of 2,250 (primarily residential) grid-connected rooftop PV systems having a capacity range
between 1 and 5 kWpeak
through the use of incentive in the form of a 70% direct subsidy (50% federal, 20% state). To date, over 1,100 systems have been installed. Siemens Solar has played a major role in this program, supplying over half of all PV modules installed to date as well as supplying inverters. Structurally, this system most resembles a DSM program in the sense that individual end-users are incentivized to purchase and install hardware through a subsidy mechanism.
This program is being very well documented, and copious amounts of data gathered. In spite of the fact that slight differences exist between German and U.S. operational and structural utility characteristics, the lessons learned
from this program will be invaluable to future U.S. grid-connected PV rooftop projects. |
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Fact Sheet: 1000 Roofs Program |
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Customer: |
Individual Homeowners |
System Type: |
Roof Mounted Arrays, Grid Connected |
System Size: |
1.5 to 5 kWpeak (DC) Average 2.5 kWpeak |
No. of Systems |
1,177 as of 6/25/1993 |
Capacity Installed to Date |
2,900 kWpeak Total
1,500 kWpeak Siemens Solar |
Typical PV Array Area |
230 Foot2 (21 meters2) |
Typical Number of Modules |
(50) M55 |
Inverter |
1.5 - 5 kVA, Siemens and Others |
Utility Intertie |
230 Volt, Single Phase, 50 HZ |
Typical Structure |
Aluminum Substructure on Tile Roof |
Typical Array Circuit Configurations |
5 Modules in Series by 10 in Parallel |
Typical AC Energy Output |
1,900 kWh/year |
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