Developing solutions for mobility and housing

Cities are expanding worldwide. This trend presents municipalities with challenges in the areas of mobility, housing and climate protection. The time has come for energy-efficient urban refurbishment. 

Intelligent planning of quarters and districts can release significant efficiency potential. Find out here what dena is doing to achieve these goals nationally and internationally.

Statistics & facts

50 %
of the world’s population
currently live in cities.
75 %
of the people in Germany
are at home in a city.
million residential units
have been constructed in China in the last fifteen years.
million Chinese nationals
have moved from the countryside to the city over the last 12 years.

Urban living remains a popular trend

dena advises cities and municipalities in the preparation of sustainable urban development concepts.

Increasing numbers of people live in cities – in Germany it is now roughly three quarters of the population. This trend is repeated around the world. Municipalities are facing tricky challenges, especially as living and working are merging increasingly in a service-based economy, hence producing new mobility concepts and requirements. Not only must they provide adequate housing at affordable prices, they also need to adhere to the strict requirements of climate protection.

Energy efficiency for districts

Here, energy-efficient districts are a solution for the cities of the future. They take the interactions between various energy consumers into account as the constituent parts of a city merge. For instance, suitably planned residential districts are able to exploit substantial energy-saving potential in a number of sectors – for instance mobility, comfortable living, inter-generational cohabitation, energy supply, waste management and environmental protection. Implementing barrier-free living for an entire district can reduce workload and expenses, for example. It is also energy-efficient to install one local heating solution for many different residential units instead of maintaining individual systems.

Expertise in energy-efficient urban refurbishment

The challenge in Germany is to redesign current urban systems while still preserving the building fabric. Systematic district refurbishment and sustained urban development are complex processes. After all, the many and varied interests of stakeholders like homeowners, tenants, the housing industry, trade and commerce, energy providers, urban developers, the transport industry and others all need to brought together within one set of energy policies. dena is the right partner for this task. Drawing on its substantial expertise, dena can play a key role in communicating know-how, mediating between the stakeholders and in the concise development of cross-sectoral energy concepts.

Urbanisation promotes climate protection

The energy-efficient re(design) of urban districts is an important aspect in the sustainable development of entire cities that use their resources to produce the smallest possible carbon footprint.

In order to achieve a noticeable reduction in CO2,emissions in city energy systems, it is imperative to consider and to interconnect varied fields of action, among them building, energy, transport, water and waste management and their superordinate planning and organisation. The purpose of the Eco-Cities project is to collect initial practical experience from the various pilot cities and hence to create a foundation upon which to build recommended courses of action for the Chinese Ministry of Construction.

Projects on the topic

Eco-Cities in China

dena plays a major role in Sino-German cooperation in the field of climate-friendly urban development. This cooperation centres on practical criteria relating to sustainable urban infrastructure, strategies and management instruments. Energy-efficiency technologies and services that have been tested in Germany are to be demonstrated, evaluated and further refined across 25 pilot cities in China.


  • Project start: 2015
  • 25 pilot cities in China
  • Countries involved: Germany and China
  • Partners: Wilo SE and Wacker AG

Energy concept for new city quarter

SolWo Königspark GmbH is planning to establish Königspark, an 'energy plus quarter', in Königs Wusterhausen. A new residential city quarter will be built over an area of 330,000 m². dena has developed an energy concept for it.


  • Project duration: 2015
  • dena developed a comprehensive energy concept
  • by examining various concepts for the supply of heat
  • and assessing cost effectiveness, energy balancing, and implementation