Monthly Archives: July 2014

RAPSim – An open source simulation software for microgrids

It is not necessary to stress all the challenges that come allong with wide range integration of renewables into the power grid at this article. You easily find this somewhere else, in this blog or at another source in the web. But I want to focus your attention on a tool that can help to deal with this challenges and work torwards solutions. It is a lot on matching climate dependent production with the personal demand which is currently noticed only in average. The various influences on residential load profiles are diverse and include weather conditions, availability of other resources, personal habits and also social phenomenas. This variaty is a reason why Marija Ilic speaks of just-in-time and just-in-place services in the conntext of Smart Micro Grids.

Developing of or researching on such services requires a flexible simulation tool with possibly high usability. This is exactly what RAPSim is aiming at. RAPSim was presented in front of interested audience at the ISGT Asia – 2014 conference in Kuala Lumpur in May 2014. Since then the software project is downloadable for free at


Connected Smart Grid Objects

The simulation field is a lattice where the user designs a scenario by placing different “grid objects”, e.g., houses, wind turbines, PV panels, etc. Each of the objects can have a model which does all the inner-object calculations. Algorithms handle grid-wide interactions. User-defined models can extend  algorithms for the grid and/or models for the grid objects. RAPSim provides the interface with following functions:

  • A graphical interface to create the intended scenarios and to control the simulator functions.
  • Functions to save and load simulation scenarios in a generic xml format.
  • A time thread that models time of day and day of the year and handles up to minute resolution.
  • Generation of output files in csv-format. Object parameters can be selected to be written into a file at each time step.
  • Weather simulation which can be done via stochastic models or simulated by measured data.
  • Topological grid analysis that collects objects of the same bus in a list and aggregates their parameter values.
  • Administration of algorithms for grid-wide calculations.
  • Administration of object specific models that can be easily implemented by the user.

The software is written in Java and provided with the source code so that it can be imported into a Java IDE such as eclipse. The development of the software is still ongoing. Try it out and give us feedback by adding a comment or sending a ticket to helps us to further improve it. Please spread the news about the tool, while we will do the best on our part so that onces RAPSim may become a synonym for rapid simulation in the field of mirco grids.
Once more here the link to the sourceforge page.

Publications on RAPSim (with links to fulltext PDF):

M. Pöchacker, T. Khatib, and W. Elmenreich. The microgrid simulation tool RAPSim: Description and case study. In Proceedings of the IEEE Innovative Smart Grid Technologies Asia (ISGT-ASIA’14), Kuala Lumpur, Malaysia, 2014. IEEE.

Workshop Program: Human Centered Energy Management

Monday, 07.07.2014, 09:00 to 17:00 “Opening Day” 

9:00-9:30: Registration

9:30-9:50: Introduction to the workshop
9:50-10:40: Plenary talk: Wilfried Elmenreich (University Klagenfurt, Austria) –Bringing the smart grid into your home

10:40-11:00: Coffee Break
11:00-11:50: Plenary talk: Oliver Parson (University Southampton, England) – Machine Learning for Home Energy Feedback

11:50-12:40: Group-work on focused topics o 12:40-13:30: Lunch Break
13:30-14:45: Group-work presentation
14:45-15:15: Coffee Break

15:15-16:05: Plenary talk: Marko Grobelnik and Maja Skrjanc (Jozef Stefan Institute, Slovenia) Modern Analytics Methods for Energy Saving

Tuesday, 08.07.2014, 09:00 to 17:00 “Industry Day”

9:00-9:50: Plenary talk: Andreas Reinhardt (University of New South Wales, Australia) –Appliance-level Power Consumption Monitoring: Opportunity for Novel Services or Threat to User Privacy?

9:50-10:10: Coffee Break
10:10-12:30: Presentations of Companies
12:30-13:30: Lunch Break
13:30-15:30: Company Speed Dating
15:30-16:00: Coffee Break
16:00-16:50: Plenary talk: Andreas Kercek (Lakeside Labs GmbH, Austria) –Research collaboration and funding opportunities (preliminary title) 

Wednesday, 09.07.2014, 09:00 to 13:00, 15:00 “Social event” 

9:00-9:50: Plenary talk: Hermann DeMeer (University Passau, Germany) – Hybrid Risk Management for Utility Networks

9:50-10:40: Plenary talk: Erich Schwarz (University Klagenfurt, Austria) – Dean of Faculty of Management and Economics (title to be addressed)

10:40-11:00: Coffee Break
11:00-12:00: Group-work on focused topics
12:00-12:45: Group-work presentation and discussion o 12:45-13:45: Lunch Break
14:30: Departure to the Social event with a bus

Social Event “Schau-Kraftwerk Forstsee”

  • Guided Tour
  • Plenary talk: Peter Palensky (AIT, Austria) – Buildings, people and the grid
  • Dinner

Thursday, 10.07.2014, 09:00 to 17:00 “Interdisciplinary Research Day” 

9:00-9:50: Plenary talk – Norbert Wohlgemuth (University Klagenfurt, Austria) –The energy efficiency rebound effect and renewable energy

9:50-10:10: Coffee Break
10:10-12:30: Group-work on focused topics
12:30-13:30: Lunch Break
13:30-14:30: Group-work presentation
14:30-14:50: Coffee Break
14:50-15:40: Plenary talk: Markus Biberacher (ispace, Austria) –Spatio-temporal aspects in energy systems with high renewable energy shares on local, regional and global scale

15:40-17:00 Group Work on focused topics

Friday, 11.07.2014, 09:00 to 13:00 “Planning future collaborations 

9:00-10:00: Group-work presentation
10:00-10:30: Coffee Break
10:30-12:30: Future collaboration panel

12:30-13:30: Round-up & Lunch