The photovoltaic system is located on the roof of the hall in an east-west orientation in order to cover the daily requirements of the company as best as possible while optimising the company's own consumption. Due to the efficient dimensioning, the photovoltaic system produces the required annual energy of the company Rehl Energy and thus guarantees energy neutrality. The network of the public utility company is used as a buffer.


  • 61 Q-Cells modules, area: 101.9 m² 
  • Total output: 17.38 kWp
  • Inverter: SMA STP 15000 TL-30

Yield - demand --> energy neutral

  • Production PV energy approx. 16,000 kWh
  • Feed-in approx. 8,000 kWh
  • Acquisition of municipal utilities approx. 8,000 kWh
  • Total annual consumption approx. 16,000 kWh