Startseite SWIVT II

Welcome to the SWIVT II website: Implementation phase of District energy modules for existing residential areas – Impulses for linking energy efficient technologies

Within the scope of the 6th Energy Research Programme of the German Federal Government
Within the scope of the 6th Energy Research Programme of the German Federal Government

In this research project, the energy balance is improved by at least 30% compared to conventional refurbishment with minimal intervention in the existing housing stock using the example of a real existing housing estate from the 1950s in Darmstadt. Germany´s housing stock represents a critical mass for the energy policy goals of halving Germany's primary energy requirements by 2050 and increasing the share of renewable energies in gross final energy consumption to 60%. Buildings and districts account for almost 40% of primary energy consumption, of which almost 70% is thermal energy. Many of the approximately 19 million residential buildings in Germany are only partially or not at all renovated in terms of energy, and up to 80% of the energy requirement could be saved here. However, the refurbishment rate is currently too low to meet the planned targets. Highly time-consuming and planning-intensive support measures, complex legal requirements, together with a partly problematic handling of façade insulation (e. g. for the preservation of historical monuments) have halted investments in this area. Strategies for local energy generation and storage are playing an increasingly important role in significantly reducing the primary energy consumption of the building.

The SWIVT vision of an energetic refurbishment: Not only to create valuable living space and drastically reduce energy consumption, but also to integrate components for renewable energy generation, storage and connection in a system controlled at settlement scale. Picture: TU Darmstadt, ISM+D
The SWIVT vision of an energetic refurbishment: Not only to create valuable living space and drastically reduce energy consumption, but also to integrate components for renewable energy generation, storage and connection in a system controlled at settlement scale. Picture: TU Darmstadt, ISM+D