© Sergey Nivens – stock.adobe.com

DELTA: Living Lab for the Energy Transition
Connecting the energy system of the city

Cities could be so much more energy efficient: waste heat produced by industrial plants, for instance, could be used to heat buildings in place of fossil fuels. DELTA, the newly launched living lab for the energy transition, is now looking to implement such energy-saving ideas – initially aiming to make the city of Darmstadt’s energy system more flexible and environmentally friendly.

© SDE19/ÉMI Non-profit Ltd

Building Energy Competition
Solar Decathlon Europe teams present their ideas

The European university competition for sustainable building and living in the city is entering the next round. The teams will present their projects in short pitches. Interested parties can follow the event live online.



A couple looks at their tablet while renovating a flat.
© contrastwerkstatt - stock.adobe.com

EU refurbishment strategy
A Renovation Wave for Europe and Germany

Through its “Renovation Wave” strategy, the European Commission is aiming to double the rate of energy-efficient renovations in the next ten years.

The Living Labs Europe Competition aims to make neighbourhoods more sustainable.
©Stefano Tammaro - stock.adobe.com

Experiencing innovations in energy
PtJ Creates District-Level European Energy Competition on Behalf of BMWi

Establishing net zero cities, collectively improving climate protection in Europe, and increasing building renovation rates

An operating theatre that can be ventilated via the ventilation system or the windows.
© Africa Studio - stock.adobe.com

Coronavirus pandemic
Fighting Viruses with Air and Rays

Research in the field of buildings and districts is currently developing numerous solutions to tackle the coronavirus pandemic.


Research Projects

Launch of the Living Lab for the Energy Transition GWP
New: Large-Scale Heat Pumps in Germany’s District Heating Networks


A large proportion of Germany’s CO2 emissions can be attributed to the supply of heat. Large-scale heat pumps powered by greenhouse gas-free electricity could help the country to reduce its CO2 emissions. In the living lab for the energy transition focused on the installation, operation, monitoring, and system integration of large-scale heat pumps (LHPs) in district heating networks, these systems will now be connected to district heating networks at various types of location.

This former bunker serves as an energy storage facility.
Bild: Hamburg Energie

Integrated household heating transition in Wilhelmsburg
Sustainable Heating Supply for Urban Districts

In the Hamburg district of Wilhelmsburg, it is shown how regenerative heat can be generated and distributed in urban areas.

Fifth generation energy systems, low-carbon supply systems, new models for energy suppliers and operators
© struvictory - stock.adobe.com

Low Temperature Replaces Coal Infrastructure

Many cities and municipalities have committed themselves to ambitious climate protection targets for reducing CO2 emissions.

Example of a solar-active, grid-connected energy supply for a new housing estate
© Andrea Kroth

Heat grid for pilot project in the neighbourhood
Energy-plus housing scheme with a solar-active, grid-connected energy supply

The project is accompanying the first construction phase of an energy-plus housing scheme being constructed in Berlin Adlershof.


Research Topics

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