Wiesbaden – Röntgenstraße
A residential building at Röntgenstraße 26–32 in Wiesbaden is currently being fully modernized as part of a forward-thinking renovation. The project’s goal is to achieve climate-neutral operation by implementing extensive energy upgrades and integrating innovative technologies. These improvements will significantly reduce both energy demand and operating costs, enabling the building to reach new-build standards (energy efficiency class A+) and substantially increasing its value.
Overview
The Challenge:
The building at Röntgenstraße 26–32 in Wiesbaden, though structurally sound, no longer met current energy standards and experienced significant heat loss—a common issue among older properties. To address this, a comprehensive renovation was needed to transform the building into an efficiency house that meets the rigorous NetZero EH 55 EE standard.
The Approach:
The project focused on a serial energy renovation, starting with a complete renewal of the building envelope. This included new roof insulation, the installation of prefabricated, highly insulated façade elements with new windows, and thorough insulation of the basement ceiling to minimize heat loss. The entire building’s technical systems were modernized: a new, efficient heating system now provides space heating and hot water, supported by a state-of-the-art ventilation system to maintain a healthy indoor climate. A rooftop photovoltaic system was also installed to generate renewable energy on site and support climate-neutral operation.
The Result:
The building has been transformed into an efficiency house that meets the NetZero EH 55 EE standard, characterized by extremely low energy demand and climate-neutral performance. Extensive insulation and modern building technology have led to a dramatic reduction in energy costs and a significant improvement in living comfort and indoor air quality. This Wiesbaden project stands as a model for sustainable renovation, delivering clear benefits for residents, property owners, and the environment.
F ➔ A+
Energy Efficiency Class
Upgrading to KfW Efficiency House 55 standard
103.7 t
CO₂ Emissions Savings
Emissions reduction and PV credit lower CO2-Balance from 126.1 t to 22.4 t
- 90 %
Energy Demand
Improvement of energy demand from 163.3 kWh/m²a to 13.8 kWh/m²a
“ecoworks has been a reliable and knowledgeable partner for us throughout every phase of our projects. The team has especially demonstrated its strengths in planning, development, and addressing economic questions. With ecoworks by our side, we are able to renovate our existing properties in a serial and future-proof way, relying on solutions that are simple, cost-effective, and make sense both socially and environmentally.”
Maßnahmen im Überblick
Fassaden
Dach
Fenster
Balkone
Keller
Heizung
Hauseingänge
Energieversorgung
Leitungen
Gallery
