July 16.2020

PV cladding integrated into the ventilated facade. Photo: CR Energie Sarl.

A roof, a facade and balcony railings providing energy.

Energy-optimised buildings produce more electricity than they consume.

Positive energy

The two new buildings replacing old properties with 26 rental apartments on Oberwiesenstrasse/Affolternstrasse in Zurich-Oerlikon are energy positive buildings. In other terms, the building’s electricity production is greater than the consumption of electricity within the building, which benefits both its owners and tenants.

Full coverage with photovoltaic modules

The used photovoltaic modules are not only highly efficient, but also serve as an architectural design element:

• PV installations with monocrystalline modules on flat roofs
• Integrated PV modules in the pitched roof (45 kWp in total)
• Monocrystalline facade modules with a grey coating (85 kWp)
• Double-sided transparent glass-glass PV modules on balcony railings (3 kWp)
• Total PV power of 133 kWp
• PV area of 1.300 m²
• Annual photovoltaic production of 70.000 kWh (calculated)

Building integrated photovoltaic installation

Today’s building envelopes are ideally suited as solar facades. The integrated solar modules are tailor-made to fit the building exactly.

Planning and realization: BKG Architekten AG, CR Energie GmbH, SunTechnics Fabrisolar AG, GFT Fassaden AG.