Category: Workshops and Conferences

Save the date: oemof user meeting 2026.02

Our next in-person user meeting will take place in Nordhausen from 11th to 13th of February 2026. It will be hosted by Nordhausen University of Applied Sciences partly parallel to the  9th Regenerative Energy Technology Conference (page in German).

We are posting this save the date already, as the parallel RET.Con also allows to submit contributions to its proceedings. If you wish to do so, please send an abstract (maximum two pages A4) to ret@hs-nordhausen.de. The deadline for abstracts to the RET.Con is the 15th of October. If accepted, full papers will be due at the 15th of January. Registration to the oemof track will be possible later, (as usual) without abstracts and proceedings.

2025.09 Developer Meeting in Berlin: Save the Date 

We just got the feedback that the next oemof meeting will be hosted by Reiner Lemoine Institut from September 15th to 17th at HTW Berlin. Due to the limited room capacity it will come as a developer meeting. Save the date and contribute, if you are interested! (Beginners, in particular first-time contributors, will get guidance, of course.) 

We created a wiki page for the Meeting 2025.09 to work on the agenda. 
 To register, you can either add your name to the linked Wiki page at GitHub, use the registration form, comment this post, or write an email to meetings@oemof.org. 

2025.02 dev meeting retrospective

At the last developer meeting, in sunny Flensburg, we focused on decision making and drafting for the future development of solph. Here are the main results:

  • There is consensus that we should have common approach of facades or sub-networks. Currently, there are several similar implementations, namely facades in oemof.tabular, nested energy system object (used for cellular approaches, now removed), and node containers (in MTRESS).
  • We worked hands on at the documentation. Improvements will be merged to the v0.6 dev branch. We also have a suggested colour palette to use in examples:
    Lapis Lazuli (#1F567D) , Cambridge blue (#8AA8A1), Pumpkin (#FA8334) , Rose (#FF006E), Icterine (#FFFD77)
  • We drafted a new class Results that will eventually replace the nested dict generated by solph.processing.results().
  • Before thinking about alternative back-ends to Pyomo, we should remove code duplication.
Group picture taken at the balcony of the FH Flensburg building near the habour.

oemof AUA 2025/03 (today)

As announced previously on other channels, we have an “ask us anything” session today. Unfortunately, we currently experience issues with the server that runs our cloud infrastructure, including the calendar. Thus, the link we originally shared is currently unavailable. So, here is a summary:

oemof ask us anything: 2025-02-27

After premier of the “oemof consultation hour” we spontaneously decided to have a short AUA (ask us anything) this Thursday at 16:30 CET. We will try to use our own video call infrastructure (at cloud.oemof.org/call/). So, if you have questions, just dial in and get answers live from the 2025.02 developer meeting.

oemof consultation hour

Next week, at the 30th of January, we will have our first oemof consultation hour from 2 pm to 3 pm CET. To keep the entry barrier low, we plan to have it at https://meet.jit.si/oemof-consulation-hour. Feel free to join, if you have questions or just want to chat about oemof. (Note that there is something similar for the TESPy community for some time now.)

2025.02 dev meeting: Save the date

We just got the feedback that the next oemof meeting will be hosted by the Flensburg University of Applied Sciences from February 26th to 28th. To push the further development of oemof, it will come as a more developer focused meeting. Save the date and contribute, if you are interested! (Beginners, in particular first-time contributors, will get guidance, of course.)

Update: We created a wiki page for the Meeting 2025.02 to work on the agenda.
Update 2: To register, you can either add your name to the linked Wiki page at GitHub, comment this post, or write an email to meetings@oemof.org.

Report from the anniversary meeting

The last days, we had our semi-annual meeting to discuss the state of open energy system modelling. This time in the flavour of a user meeting with a special 10-year celebration event. I am so happy that I can tell that the concept worked out: We had almost 40 guests, some of them were on their first oemof meeting. Still, they dynamically formed sub-groups for parallel sessions, had fruitful discussions, shared experiences, and eventually started implementing something together. To kick this off, we asked every participant to give a short pitch at the first day. This was quite a ride, but due to coffee breaks and a poster session in the DLR entry hall, it was possible to identify many persons you wanted to talk to later.

Group photo of those who stayed long enough on Thursday (after the 10-year celebration event). Unfortunately, we forgot to take a picture before.
Continue reading “Report from the anniversary meeting”

Save the date: 10th Anniversary Meeting in Oldenburg

At the end of this year, the open energy modelling framework will turn 10. The anniversary meeting will be held in Oldenburg from the 20th to the 22nd of November, 2024. The style will deviate from the standard developer meetings we typically have by the end of the year; it will be more like a user meeting.

To celebrate this special occasion, there will be three different locations, we will be visiting. Wednesday, we will be in the big seminar room of the DLR Institute of Networked Energy Systems, next to Campus Wechloy of Oldenburg University. This is the right place to give presentations for a bigger audience. For Thursday, we will move to the DLR site in down-town Oldenburg. We have several rooms reserved there to work in breakout groups. On Friday, we celebrate the developer part in the Mainframe Oldenburg, located next to Oldenburg central station. This place offers the perfect atmosphere for hands-on coding experiences.

More details will be collected at the corresponding Page GitHub:oemof/wiki/Meeting-2024.11:-10-years-of-oemof. We also have a preliminary agenda at the page already. Registration will open soon. To get to know each other, we agreed that everybody should be part of a contribution. This includes a wide range of possibilities:

  • Pitch (one static slide, one minute)
  • Presentation (five minutes up to 15 minutes)
  • Poster (A3 to A0), please do also give a pitch
  • Co-authorship (be named in a contribution of someone else)

To register, please write an email to meetings@oemof.org before 1st of November. Please tell your name, your institution, what kind of contribution you plan, the title of your planned contribution, and your nationality. (The latter is needed due to DLR regulations.) If you do not tell us something different, we will assume that listing your name, institute and contribution on a publicly available list will be okay for you. (Registration deadline has passed.)

2024 user meeting in Nordhausen: Thanks for joining!

The last user meeting was the biggest we ever had. We had very productive and inspiring discussions about using oemof (especially solph). Because of the size we gathered opinions in subgroups instead of making decisions about future developments in the plenary. Another reason for this also led to some other changes: Typically, we start with user presentations showing use-cases as well as open questions. This, however was scheduled as a point of the agenda of the parallel RET.Con. So, instead of gradually going to the core, we started with developer topics.

Continue reading “2024 user meeting in Nordhausen: Thanks for joining!”