ECC – EnergyCityConcepts – Development of a methodology and concept for the implementation of sustainable energy systems in cities by the example of Gleisdorf and Salzburg

In the context of this project two concrete model regions (small city Gleisdorf and urban city quarter Salzburg-Schallmoos) will be developed and tested with new methodical approaches (interdisciplinary urban and regional energy planning, modeling and simulation). An ambitious political commitment of both model regions is a 100% renewable or rather CO2-neutral energy supply.

Short Description

Based on the pre works in the regions the interdisciplinary team has to work on concrete scenarios and concepts for implementation of complete sustainable energy systems which allows an evaluation of the above defined targets on technical, ecological and economic criteria. Finally, the concrete implementation process in both regions should be prepared as well as the transferability and also the generalizability of the methodic to other regions should be proofed.

Starting point/Motivation

Due to urban growth, an important role to reach the climate targets take decentralized energy infrastructures on the level of municipalities, small cities and city quarters to increase regional and national value added as well as the increase of supply reability.

It is comprehensible that to reach ambitious climate targets, a combination between urban planning and energy planning (urban and regional energy planning) or rather in special the combination of different energy and municipality infrastructures in urban regions is increasingly important.

The major challenges, as well on technical as on non-technical side, are to analyze future energy system combinations in a holistic approach and further on to obtain a transformation agreement between stakeholders in the field of urban and energy planning.

Contents and goals

In the context project this challenges will be addressed and on the base of two concrete model regions (small city "Gleisdorf" and urban city quarter "Salzburg-Schallmoos") new methodical approaches will be developed which enables developments of holistic and sustainable energy systems in the urban field.

Both model regions combine ambitious political commitments to a 100% renewable or rather CO2-neutral energy supply. Both cities are due to previous activities and visionary perspectives of responsible players leading in the Austrian Smart Cities development.

The changeover of two existing energy supply systems based on major parts of fossil energy sources to an energy system with (volatile) renewable sources require an interdisciplinary and comprehensive handling of complex system questions (f.e. coupling energy infrastructures, grid expansion versus increase of energy efficiency, transition to flexible power sector versus coupling heat and power infrastructure, etc.) and cause a general new methodical approach in the technical as well in the non-technical field.


Technical research questions

The project affect the territorial fixed urban analysis of energy savings and energy resource potentials within the balance limits of both model regions as base of development and optimization of integrated energy systems.

The challenge in the computerized energy system is to rebuild, realistically and as requested technical-physically, the interdependency between the single components of the energy systems (generation system, grids, storage and user) across a defined period under review (minutes, hours, years).

Besides GIS-tools further software tools (balance tools, statistical and/or dynamic physical and hydraulic models, optimization of algorithm, etc.) are necessary or rather complex combined simulations (co-simulation) are required.

Non-technical research questions

The project includes the development of new approaches of organizational, terminal and methodical links of city planning (urban and regional planning) and energy planning as well as the implementation in both model regions.

The challenge lays in the implementation of interdisciplinary cooperation of city planners and energy planners as basic requirement to establish "good urban governance" in the field of urban energy planning. The main tasks are the use of a mutual comprehension in a common language, a harmonized methodical approach and particularly a common vision.

Expected Results

For both model regions integrated energy system concepts will be developed and optimized according the ambitious political targets and along different scenarios (technical, ecological and economical). In interaction with relevant stakeholders from both cities final energy system concepts are defined in an interdisciplinary process of urban energy planning a concrete implementation process will be prepared.

At the end of the project consistent and transferable methodical approaches for both regions by means of acquired knowledge of the numeric model building and development process (model building and simulation; optimization of algorithm, structures and tools for interdisciplinary processes for urban energy planning) are offered for complex circumstances of a holistic urban energy planning. The main target is to achieve a transferability of the methodical approaches to other urban regions with different basic conditions.

Project Partners

Project management

AEE – Institute for Sustainable Technologies (AEE INTEC)

Project or cooperation partners

  • Institut für Wärmetechnik, Technische Universität Graz (IWT)
  • SIR – Salzburger Institut für Raumordnung und Wohnen (SIR)
  • Studio iSPACE / RSA FG (iSpace)
  • Stadtwerke Gleisdorf (StG)
  • Salzburg AG (SAG)

Contact Address

AEE – Institute for Sustainable Technologies
Jürgen Fluch
Feldgasse 19
A-8200 Gleisdorf
Tel.: +43 (3112) 5886 0
Fax: +43 (3312) 5886 18