VTT TECHNICAL RESEARCH CENTRE OF FINLAND LTD The District Energy Concept Adviser A Software Tool to support Urban Decision Makers in planning District Energy Supply Schemes Heike Erhorn-Kluttig, Hans Erhorn, Eike Budde, Simon Wössner Fraunhofer Institute for Building Physics
Background Research Initiative EnEff:Stadt (Energy Efficient City) of the German Ministry of Economy and Technology (BMWi) Incl. pilot projects on community level, new technologies, planning instruments, international collaboration Accompanying research team: cross analysis, assessment of project proposals, advice, guidelines, District Energy Concept Adviser IEA ECBCS Annex 51: Energy Efficient Communities - Case Studies and Strategic Guidance for Urban Decision Makers International case studies on community and city level Guidebook to successful urban planning International versions of District Energy Concept Adviser EU H2020 Project MODER: Mobilization of innovative design tools for refurbishing of buildings at district level New national versions (incl. Latvian) Additional technologies Cost calculations 06/10/2017 Workshop in Riga, Latvia 2
Aim District Energy Concept Adviser Number of Decisions Current status Variants Concept Gross planning Detailed planning 06/10/2017 Workshop in Riga, Latvia 3
Target Groups (Decision makers in) Municipal administrations Local policy makers Energy suppliers Universities/ Research organisations Specialist consultants (Engineer offices) Developers/Housing associations -> simple to use -> not too detailed -> not for dimensioning but for assessing the energy potential 06/10/2017 Workshop in Riga, Latvia 4
06/10/2017 Workshop in Riga, Latvia 5
Software Architecture 06/10/2017 Workshop in Riga, Latvia 6
Assessment field Building archetype library Quick results 06/10/2017 Workshop in Kranj, Slovenia 7
06/10/2017 Workshop in Kranj, Slovenia 8
06/10/2017 Workshop in Kranj, Slovenia 9
7 steps to adapt the archetypes 06/10/2017 Workshop in Kranj, Slovenia 10
06/10/2017 Workshop in Kranj, Slovenia 11
age dependent U-values can be further adapted 06/10/2017 Workshop in Kranj, Slovenia 12
building automation system 06/10/2017 Workshop in Kranj, Slovenia 13
06/10/2017 Workshop in Kranj, Slovenia 14
Archetype 1 Archetype 2 Archetype 3 Archetype n Local supplies Building type Local DHU Building age Type of system Heating systems Energy carrier Energy carrier heating Solar thermal col. Domestic Hot Water Waste heat Energy carrier DHW Solar thermal collectors m² Local DCU Collector orientation Type of system Collector inclination Energy carrier Ventilation Beleuchtung Electricity knot Equipment PV PV m² Wind generators Wind generators U-value wall W/m²K U-value windows W/m²K g-value % Shading device U-value roof W/m²K U-value ceiling to attic W/m²K U-value cellar ceiling W/m²K U-value base plate W/m²K U-value cellar wall W/m²K U-value to unheated W/m²K 06/10/2017 Workshop in Kranj, Slovenia 15
New: Technology packages 06/10/2017 Workshop in Riga, Latvia 16
New: Cost database 06/10/2017 Workshop in Riga, Latvia 17
New: Cost database 06/10/2017 Workshop in Riga, Latvia 18
Example Application: Karlsruhe-Rintheim City quarter built in 1950s/1960s 32 multi-family houses Retrofit in different energy levels (low energy / passive house) Local district heating network, fed by district heating Consumption data from 2014 06/10/2017 Workshop in Riga, Latvia 19
Example Application: Karlsruhe-Rintheim 06/10/2017 Workshop in Riga, Latvia 20
Example Application: Karlsruhe-Rintheim Energy [ kwh/m²a ] Final energy Primary energy Before the retrofit After the retrofit Monitoring Before the retrofit After the retrofit District ECA 06/10/2017 Workshop in Riga, Latvia 21
Presence and Future of the District Energy Concept Adviser Downloads: > 700 downloads of the international version > 1370 downloads of the national German version Applied in the German BMWi research initiative EnEff:Stadt e.g. projects Berlin Adlershof, Neckarpark Stuttgart Applied for other energy concepts of neighbourhoods (KfW, community planners) Tested by the University of Wuppertal Further development in EU MODER: Finnish, Latvian and Slovenian version Additional technologies, technology packages Costs (building envelope components, building-wise services systems, local central services systems, energy costs) Currently under test Final version incl. manuals available by end of the project: 07/18 06/10/2017 Workshop in Riga, Latvia 22