DELTA: Darmstadt Living Lab for the Energy Transition
© Nikolaus Heiss und PTW, TU Darmstadt

DELTA: Living Lab for the Energy Transition in Darmstadt
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.

The power plant, located on the Rhine, is characterised by very efficient water extraction and return facilities. These are ideally suited as a heat source for a large-scale heat pump.

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.

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

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

A successful heat transition can make a significant contribution to the success of the energy transition. Using the example of the Hamburg district of Wilhelmsburg, a rapidly growing urban neighbourhood, this is now being demonstrated with the real laboratory of the energy transition IW³.

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

Low Temperature Replaces Coal Infrastructure

Many cities and municipalities have committed themselves to ambitious climate protection targets for reducing CO2 emissions. Transforming their heating and cooling supply could make a significant contribution to this.

In SmartQuart, different neighborhoods are digitally linked to each other.
©ekaphon -

Living Labs for the Energy Transition
SmartQuart: Energy Transition on a Local Scale

We already have the technology to implement the energy, transport, and heating transition on a local scale and power neighbourhoods with 100 % renewable energy. However, to do this, the required facilities and devices must be converted to energy-saving technology.

The Wilhelmsburg community center in Hamburg can be seen next to a lake. Here, the researchers tested their concept in practice.
©Philipp Janßen - HAW Hamburg

More Flexible and Efficient
Combining Building Control Systems and Heating Networks Through Smart Networking

German and Finnish researchers have investigated ways in which heating networks can benefit from intelligent building technology. Thanks to simulations and a project, they have shown that intelligent heat consumers on the user side can have a positive impact on the entire network.

How can_ greenhouse gas emissions in the life cycle of a building be measured in a meaningful way and thus be limited? The “KEA-Bauwerk” project addresses this issue.
©Ngampol -

From the manufacture of building products to dismantling
Making the Full Life Cycle of Buildings Climate-Smarter

Grey emissions can be measured and limited more effectively: researchers in the KEA-Bauwerk project are developing basic principles and tools to reduce energy consumption and CO2 emissions in the life cycle of buildings. They are identifying practical data and benchmarks, for example.

Electric Steelworks Hennigsdorf
© @RIVA Stahl GmbH

Recipient of 2021 award for municipalities engaged in tackling climate change
Award-Winning Net-Zero Heating Initiative in Hennigsdorf

The municipality of Hennigsdorf plans to increase the share of net-zero heating in its district heating network to 80 % by 2023. To achieve this goal, the local public utilities company Stadtwerke Hennigsdorf is integrating waste heat from the local steelwork plant into the network.

The historic Margarethenhöhe workers' housing estate in Essen in an aerial view from the southeast (2009).
© Wikipedia, Gemeinfrei

Innovations in the historic city quarter
District concept enables energy efficiency in listed buildings

The listed settlement Margarethenhöhe in Essen is a historic residential quarter. Many buildings have remained almost unchanged since the construction period. Researchers are now investigating how the energy efficiency of the settlement can be significantly increased beyond the measures taken so far

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, whose clients have combined together to form the Newton GbR building venture. Three four-storey residential buildings are being built in this construction phase.

The new central building of Leuphana University was designed by architect Daniel Libeskind.
© Leuphana Universität Lüneburg

Heating with low exergy
Sustainable university building in a climate-neutral campus complex

The spectacular new central building for Leuphana University Lüneburg interprets energy-optimised construction in a different way. The concept for achieving sustainability is based on avoiding cooling requirements and minimising the electricity requirements for ventilation and lighting.

Densified rental housing requires special refurbishment concepts for efficient heating systems
© Michael Gaida,

Low-exergy concepts for existing buildings
Heat pumps for the refurbishment of apartment buildings

Solutions for the use of low-exergy systems are being developed for the heat supply of existing multi-family houses. The subject of investigation are electric and gas heat pumps as well as heat transfer and ventilation systems.