2015 Minutes of the Workshop

4th Workshop CityGML EnergyADE - Munich (Germany), 30th of November and 1st of December 2015

• Host: TU Munich, Germany

Participant contacts

Name	Organisation	Country	Email
Giorgio Agugiaro	AIT	Austria	giorgio.agugiaro@ait.ac.at
Jean-Marie Bahu	EIFER	Germany	bahu@eifer.org
Joachim Benner	KIT IAI	Germany	joachim.benner@kit.edu
Marcel Bruse	HFT	Germany	marcel.bruse@hft-stuttgart.de
Mark-Alexander Brünthen	RWTH Aachen University	Germany	bruentjen@e3d.rwth-aachen.de
Egbert Casper	CITIS / SIG3D	Germany	egbert.casper@hft-stuttgart.de
Silvia Coccolo	EPFL	Switzerland	silvia.coccolo@epfl.ch
Piergiorgio Cipriano	Sinergis	Italy	piergiorgio.cipriano@sinergis.it
Volker Coors	HFT Stuttgart	Germany	volker.coors@hft-stuttgart.de
Mostafa Elfouly	TU München	Germany	mostafa.elfouly@tum.de
Christian Fliegner	RWTH Aachen University	Germany	fliegner@e3d.rwth-aachen.de
Karl-Heinz Häfele	KIT	Germany	karl-heinz.haefele@kit.edu
Marcelo Hidalgo	HCU	Germany	marcelo.hidalgo@hcu-hamburg.de
Patrik Holcik	AIT	Austria	e0509423@student.tuwien.ac.at
Jérôme Kämpf	EPFL/kaemco	Switzerland	jerome.kaempf@epfl.ch
Volker Kraut	MOSS	Germany	vkraut@moss.de
Thomas H. Kolbe	TU München	Germany	Thomas.Kolbe@tum.de
Moritz Lauster	RWTH Aachen University, E.ON Energy Research Center	Germany	mlauster@eonerc.rwth-aachen.de
Alessio Mastrucci	Research Institute Tudor	Luxemburg	alessio.mastrucci@tudor.lu
Alexandru Nichersu	EIFER	Germany	nichersu@eifer.org
Romain Nouvel	HFT Stuttgart	Germany	romain.nouvel@hft-stuttgart.de
Olivier Tournaire	CSTB	France	olivier.tournaire@cstb.fr
Athina Trakas	OGC	x	atrakas@opengeospatial.org
Klaus Viebig	Manufuture-BW, VBMation	Germany	klaus-viebig@t-online.de
Parag Wate	HFT Stuttgart	Germany	parag.wate@hft-stuttgart.de
Kunpeng Wang	AIT	Austria	Kunpeng.Wang@ait.ac.at
Maryam Zirak	HFT Stuttgart	Germany	maryamzirak@gmail.com

Action Items (Dec. 2015 - May 2016)

WHAT	WHO	WHEN
Finish the XML sample started during the workshop and lay them on the Github Repository	XML Team, with support of WG leaders	December 2015
Discuss and fix latest Requests of Changes identified during the meeting	ALL	December 2015
Update Wiki, deleting private page, and expliciting how to join the Energy ADE development in the main page. Create mailing lists	Egbert and Romain	December 2015
Integrate the parameter definitions (from the documentation table) in the XML Scheme	XML Team	January 2016
Write the Guidelines of the Energy ADE 0.6 (Guidelines_EnergyADE.md file in the Github Repository, including main concepts, definitions, illustrations and some XML examples.	Each WG	January 2016
Release new version Energy ADE 0.6, including XML Scheme and Guidelines.	XML Team	January 2016
Harmonize Time Series and Schedules of Energy ADE 0.6 with the CityGML 3.0/Dynamics development	Romain and Jean-Marie	January 2015
Add new XML sample on the Github Repository based on the new Energy ADE v0.6	KIT: Building sample and construction / Kaemco: Time series and System / Occupancy: EIFER / Thermal zone: HFT	March 2015
Get new active participants to the WG	ALL	Always
Include the dissemination materials (e.g. papers, presentations and posters) in the wiki: http://en.wiki.energy.sig3d.org/index.php?title=Main_Page&action=edit&section=4	ALL	Always

Presentations and Minutes

TOP 1: Welcome Address from the organisers Prof. Thomas H. Kolbe (TU Munich) Presentation: Structuring Information Framework Current research projects taking place at TUM that are closely related to EnergyADE development: Linking sensors and city models Development of the Dynamics part of CityGML 3.0 Building a General Indicator Modelling (GIM) and how it can help in understanding building compositions and estimating heat energy demands Demonstration of the Web-Client in visualising 3D City Models and how it can be used for heat energy estimation

TOP 2: Dissemination activities EnergyADE development has been introduced at the Munich School of Engineering (2015) as an abstract paper. A presentation was given by Mostafa Elfouly demonstrating the different working groups and the activities in each. Romain Nouvel presented the EnergyADE and its development at the WorldGeoForum (2015) Silvia Coccolo & Jerome Kämpf presented the EnergyADE in the course of their work at CISBAT (2015) entitled Urban energy simulation of the EPFL Campus in Fribourg using a new paradigm: the CITYGML application domain extension energy Romain Nouvel et al. also presented EnergyADE work at CISBAT (2015) entitled Genesis of the CityGML Energy ADE All this dissemination information must be updated on the public wiki. The private part of the wiki is not useful anymore (all development process is centralized on the GitHub) and can be deleted. ACTION (ALL) Include the latest dissemination materials (e.g. papers, presentations and posters) and attended conferences in the wiki: http://en.wiki.energy.sig3d.org/index.php?title=Main_Page&action=edit&section=4 ACTION (E. Casper) Make the Wiki fully public. Delete the community portal and forum

TOP 3: GitHub Use: XML Schema, Requests of Change and Guidelines Olivier Tournaire Olivier presented how to use the issue. Basically, there are some "developers" (TC comittee + WG leaders) and "users" rights (all others). Everybody can create and comment issues, and write in the guidelines. Developers may set the labels and Milestones. Process of Issue / request of Change The process of Issue / request of Change is fully centralised on the GitHub platform. The following process has been discussed and agreed: Open the Issue and labelling it with the concerned WG(s) Discussed internally in WG until the agreement Once agreed internally, recap in a final comment: the motivations + the detailed request of changes (integrated definitions, types etc.) Check by requested people (TC or WG). If not ok: start agiain from 2. If ok: label the issue accordingly ("Validated by the WG" and "Validated by the TC"), and set the corresponding Milestone Once integrated in the UML Scheme and agreed with the WG, close the issue Guidelines Esteban Munoz presented how everybody can edit Guidelines on the Github: file Guidelines_Energy.md GitHub open or private? Calling for making the Github platform totally accessible to non-registered. Pros: Get new fresh out of the box ideas Outreach and spread the word Cons: It will consume sometime to filter the ideas and make sure that it can really have a positive impact in the EnergyADE development A vote has been held with 20 Yes's and 1 No. It has been decided to make the Wiki fully public, with a clear link to the Github platform which remain for the moment private. Interested users is to contact Olivier Tournaire (or one of the development committee) to get an access for the Github. ACTION (Olivier Tournaire): Check if we can open the WGs without the development branch on the GitHub ACTION (development committee): Olivier Tournaire (or someone from the development committee) may provide a tutorial for using the Github ACTION (WGs): Contribute to the Guidelines on the GitHub

TOP 4: Work realised in WG Occupancy Jean-Marie Bahu & Piergiorgio Cipriano (EIFER, Sinergis) Presentation: EnergyADE Occupancy Jean-Marie & Piergiorgio discussed the organisation of the WG, activites, request of changes for the EnergyADE v0.6, and what they have tackled within the last 6 months. Piergiorgio demonstrated the usage of INSPIRE codelists. Raised Issues: Should we use stick to CityGML codelist or INSPIRE codelist Should we use the INSPIRE registery Where to put the number of watt per person Giving that building is a system, then windows are systems also? CityGML data availability and data availability in general Codelist or enumeration? IFC specifications are available online CityGML data can be found at the CityGML official website ACTION (KIT): Send link schema for OBXML to Occupancy WG ACTION (KIT): Provide construction types ACTION (EPFL): Provide time series and systems ACTION(Occupancy, JMB, EM): Provide occupancy profiles ISSUE(Occupancy): Specify the description of the Internal Gains into the documentation table and the md file ISSUE(Occupancy): Improve the documentation and guidelines ISSUE(Occupancy): Stick to the CItyGML codelist or INSPIRE codelist? Should we use the INSPIRE registery? Current research projects taking place at TUM that are closely related to EnergyADE development: Linking sensors and city models Development of the Dynamics part of CityGML 3.0 Building a General Indicator Modelling (GIM) and how it can help in understanding building compositions and estimating heat energy demands Demonstration of the Web-Client in visualising 3D City Models and how it can be used for heat energy estimation

TOP 5: Implementation of Energy ADE in Software CitySIM Jerome Kämpf & Silvia Coccolo (EPFL) Presentation: Implementation of Energy ADE in CitySim Presentation: Concrete application case of CitySim Concrete application cases of CitySIM How to connect urban simulation tool CitySIM and CityGML Energy ADE (Methodology) Case study: The EPFL Campus in Lausanne Implementation questions (e.g. time series, glazing ratio) Time Interval problem The simulation tools generally use TMY, so that the dates of the results are not relevant Mandatory energy unit The energy unit should be a mandatory attribute (but all other units too) Optional elements Some of the mandatory elements should be optional, some thoughts should be made on that List of units to use A list of SI units or other should be put in the Energy ADE (maybe as codelist?), otherwise the tools may have difficulties to recognize it Glazing ratio The glazing ratio should appear somewhere in the Energy ADE. The discussion was that we can have two surfaceComponents, one transparent and one opaque with each the correct surface LODs in the energy ADE Some thoughts should be made on how to define different LODs not only for Schedules but also for the buildings, thermal and usage zones We can have a generic description that is mandatory and details that depend on the LoD?

TOP 6: Implementation of Energy ADE in EnEff Campus: RoadMap Mark-Alexander Brüntjen & Christian Fliegner (RWTH Aachen) Presentation: To be provided Concrete application case of EnEff Campus Project

TOP 7: Implementation of Energy ADE in SimStadt: An Energy ADE Plugin for CityDoctor Marcel Bruse (HFT Stuttgart - Geoinformatics) Presentation: Energy ADE Support for SimStadt Concrete application case of SimStadt How to integrate the Energy ADE into SimStadt (Methodology)

TOP 8: Typological Issues around the ThermalZone Implementation Prof. Volker Coors (HFT Stuttgart - Geoinformatics) Presentation: To be provided Relations between AbstractBuilding <> ThermalZone <> ThermalBoundarySurface <> SurfaceComponent Adjacency Concept/Specifications -> ThermalBoundary needs geometry for validation purposes (optional) (Karl-Heinz)

TOP 9: Work realised in WG ADE Core + Construction Energy Certification Keep one attribute for energy certification instead of combining attributes (Joachim) DateOfCertification is to be added as an attribute (Joachim & Maryam) LabelOfEnergyPerformance attribute is to be added (Volker Coors) Code List <-> Enumeration Discussion to clarify whether we should resort to Code list or enumeration -> e.g. FloorArea and RefurbishmentClass 6 attributes if they should be enums or codelists (depends on availability) it's been concluded that it's better to stick to CityGML Codelist (Joachim, Karl-Heinz häfele) Date of Refurbishment ->if it's date it will need a day, month and year of refurbishment which is difficult to get. So it's better to change it to PeriodOfRefurbishment? (Joachim, FIXME!) Measurement Unit UnitOfMeasurement should be defined as a codelist comprising different system of unit Scale Scale needs to be clarified if it's between 0-1 or 0-100? ->Show an error message when incorrect unit is being used e.g. kw for energy TODO (KIT): provide construction types

TOP 10: Roadmap toward Energy v1.0 Before Energy ADE 1.0 More test cases is to be provided Occupancy Profiles -> Occupancy WG, Jean-Marie and EM? TimeSeries + System: EPFL ThermalZone: HFT TimeSeries State of time series into CityGML -> Investigate TimeSeries XML and how to integrate it into CityGML. 2 possibilities: Extern through a reference in the schema Intern through time series objects Difficulties to combine relative & absolute time values UOM attribute should be added Irregular time series file? Regular time series file with UnitOfMeasure attribute TODO (Romain & Mostafa): Romain Nouvel, Mostafa Elfouly & Kanishk Chaturvedi from TUM will check the Schedules and TimeSeries and its conformity to the development of the dynamics part of CityGML 3.0 in order to avoid any overlap (some features seem to be very similar) LevelOfSimplification ->Question (Kolbe): LoD Schedules -> Why not a LoD for Energy values? ->Different level of aggregation for EndUseType TODO (EnergySystems): Why not a LoD Energy values? Topological Issues ->v0.6: ThermalComponent is a physical object (e.g. Window or Door) and not directly related to ThermalZone, ThermalBoundarySurface -> ThermalBoundary TODO (EnergySystems): Add Geometry in the ThermalBoundarySurface as optional attribute TODO (EnergySystems): Write specific guidelines on the way to proceed on the topic + Explain Geometry in the ThermalBoundarySurface as optional attribute Openings Doors in ThermalZone is in the ThermalBoundary IFC and GBXML openings are subtractions of the walls Similar behaviour to CityGML -> Thermal Boundary is a Boundary Surface (which is similar) ADE Core V0.6: Integration of energy performance certification Protected Buildings/Zones: interesting as it seems not to be integrated into INSPIRE or CityGML 3.0, but after discussion, it was decided to not extra change it and keep links feasible with other initiatives. Certification Different kinds of certifications: Certification processes (law) & Label TODO (EnergySystems): Add day of certification (date) Unit Validation mechanism for constraints (e.g. regarding units): schema tron No particular way to put constraints into the schema, just as text in the guidelines. TODO (EnergySystems): UnitOfMeasure attribute should be mandatory PV Question: Suitable surface for PV -> rather an indicator? Question: Requirement for covering ratio for PV modules TODO (EPFL): provide time series and systems TODO (Occupancy WG, Jean-Marie and EM?): provide occupancy profiles

TOP 11: Planning of Next steps OGC TC Meeting in Sydney -> Energy ADE development work was presented by Prof. Volker Coors on the 02.12.2015 at the OGC TC Meeting in Sydney via online conf. Further process proposed for the ADE development into the OGC Maintain good visibility by regular attendance at the OGC TC Meetings (in the 3DIM or Energy DWG) Discussion paper Best Practice paper Version 1.0 as standard -> Open question: What is our final objective: CityGML 3.0? Best practice? Use Case There is a need for more documentation into the guidelines (e.g. definition of internal gains: solar + devices + occupants?) There is a need for providing a list of use cases from the WS in best practice paper TODO (All WGs): Complete the guidelines per WGs and check the mandatory or optional attributes TODO (All WGs): Use existing materials (guidelines, WS use cases, UML) for writing a use case: questions + solving process + illustration/visualisation + follow UML schema Mailing List Provide different mailing lists: Global & WG-specific ones TODO (Egbert Casper): Provide list of possible solutions Dissemination Activities till next workshop Silvia Coccolo et al. is to present the EnergyADE at the 14th International Conference of the International Building Performance Simulation Association, BS 2015, entitled Urban energy simulation based on a new data model paradigm: the CityGML Application Domain Extension Energy. A case study in the EPFL campus of Lausanne. Next Meeting Organized in June 2016. Location: Vienna Contact Person: Giorgio Aguiaro TODO (Giorgio): Giorgio will setup a doodle for next WS keeping in mind the public holidays

}