Renewable Energy

Basic Calculation for a Sample Stadium Roof Incorporating PV Flexibles(Gottlieb-Daimler Stadium, Stuttgart)

PV Flexibles Technology:
Flexible a-Si thin-film modules (PV Flexibles) integrated in a tensile membrane roof.

Power/ m²:
Approximately 45-50 Wp

Roof area (Total):
34,000 m²

Area suitable for PV Flexibles:
80% (27,200 m²)

Area used for PV Flexibles (active module area):
75% (20,400 m²)

Installed power:
Approximately 918 kWp

Average annual global solar Irradiation (for Stuttgart):
1,100 kWh/m²

Estimated annual power output:
730,000 kWh/ year at approximately 800 kWh/kWp

Feed-in payback (43.99 Ct/Kwh)*:
Approximately 322,000 Euro/ year

CO₂ reduction*:
Approximately 650 tonne/ year

(*figures for Germany, 2008)