Wiesbaden – Röntgenstraße
A residential building at Röntgenstraße 26–32 in Wiesbaden has been successfully modernized as part of an innovative renovation project. Through extensive energy upgrades and the integration of advanced technologies, the building now operates climate-neutrally. Energy demand and operating costs have been significantly reduced, resulting in a modern residence built to new-build standards (energy efficiency class A+) with a substantial increase in 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. A comprehensive renovation was carried out to transform the building into an efficiency house meeting 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 building’s technical systems were fully modernized: a new, efficient heating system provides space heating and hot water, supported by a state-of-the-art ventilation system to ensure a healthy indoor climate. A rooftop photovoltaic system was also installed to generate renewable energy on site and enable climate-neutral operation.
The Result:
The building has been successfully transformed into an efficiency house meeting the EH 55 EE standard, with extremely low energy demand and climate-neutral performance. Extensive insulation and modern building technology have dramatically reduced energy costs while significantly improving living comfort and indoor air quality. This Wiesbaden project serves as a model for sustainable renovation, delivering tangible benefits for residents, property owners, and the environment.
F ➔ A+
Energy Efficiency Class
Upgrading to KfW Efficiency House 55 standard
78.5 t
CO₂ Emissions Savings
Emissions reduction and PV credit lower CO2-Balance from 88.5 t to 22.4 t CO₂e/y
- 80.7 %
Energy Demand
Improvement of energy demand from 163.3 kWh/m²a to 31.5 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
