This is where historic preservation meets the energy transition—first in our office, then in your projects. 💡🏛️
We put theory directly into practice, test, learn, and apply what we’ve learned to future projects. On the street-facing facade (4th and 5th floors) of our headquarters in Vienna’s 6th district, we implemented our PV solution as a curtain-type rear-ventilated facade – visible, but compatible with monument preservation.
This is how we solved it
• Semi-transparent, monocrystalline PV composite glass (“Solitek”) was inserted into the rails of the existing shading system – flush between the historic post-and-beam facade and the sun protection.
• Due to the small distance, the system appears to be part of the glass facade; access and maintenance are via the existing external walkway.
• Approval with conditions by the Federal Monuments Office – substance and appearance are preserved, details were planned and implemented with precision in accordance with monument preservation guidelines.
Impact in numbers
• 13.05 kWp generator output
• 795.78 kWh/kWp specific annual yield (forecast)
• Expected CO₂ savings 3,946 kg/year
• An update on the savings potential of our PV system will follow. 🔌☀️
Why it matters:
Facade PV in historic preservation shows that with thorough planning, integration into the existing structure, and clean operation, climate goals and cultural value can be combined.