Solph 0.4.4: Capable Custom Components

Earlier this month, we released solph 0.4.4. It focuses on two new “custom components” (This is how we call in-developments components that are not yet part of the stable API.) There are:

  • PiecewiseLinearTransformer. A transformer model with one input and one output and an arbitrary piecewise linear conversion function.
  • Enhanced SinkDSM (sink allowing for demand side management)
    • Renamed keyword argument method to approach
    • Renamed approaches interval to oemof and delay to DIW
    • Added modelling approach DLR (PhD thesis of Hans Christian Gils 2015)
    • Included load shedding
    • Introduced recovery_time in DIW approach
    • Introduced shift_time and other parameters for DLR approach
    • Included investments in DSM
    • Normalized keyword arguments demand, capapcity_up and capacity_down

Further, some smaller changes made it into the release:

  • Check number of Flow s in GenericStorage
  • Allow conversion factor of zero for GenericTransformer
  • Split code into submodules
  • Move CI-Tests from Travis to github

oemof developer meeting December 2020

The next oemof developer meeting will be held from Wednesday the 2nd to Friday the 4th of December 2020. It will be an online event full of virtual workshops and discussions about technical and organisational aspects of oemof. One topic will be the current status of the “oemof foundation” (working title), which is planned be incorporated at the next in-person meeting.

Anyone who is interested is cordially invited to participate and to contribute topics. All topics including additional information will be collected at the oemof organisation wiki page for the 2020 December Meeting. If you want to register, please contact us in the according ticket at GitHub. You can also suggest additional topics at the same place, we will continue shaping the agenda based on your input at least until the 23rd of November.

TESPy v0.3.0 – Mayer’s Merit

The third major version of TESPy – Mayer’s Merit – has been released together with a paper in the Journal of Open Source Software, available at the Open Journals website. The new version carries many new features, improved calculation stability for fluid mixtures and back end changes. Continue reading “TESPy v0.3.0 – Mayer’s Merit”

Comment on recently published book about oemof

Recently a book about oemof [1] has been published. As explicitly stated by the author, this book is not written by the oemof community. Generally, books about software can be a good source to give newcomers a comprehensive view of a field and show how the software can be used to approach problems in that field. In this sense, they can fulfill a purpose that goes beyond what can be reached by the documentation written by the programmers.

However, this book stays rather close to the code and much of the information provided is outdated or not presented correctly. Continue reading “Comment on recently published book about oemof”

oemof evaluated in scientific article

The article “A qualitative evaluation approach for energy system modelling frameworks” is published in Energy, Sustainability and Society.

The authors identified ‘complexity’, ‘scientific standards’, ‘utilisation’, ‘interdisciplinary modelling’ and ‘uncertainty’ as the current main challenges of energy system modelling. By means of a case study, oemof’s contribution to tackle these challenges is analysed.

Scientific article about oemof published

Our oemof article has been finally published in Energy Strategy Reviews.

Some key points that are covered in the article:

* Comparison of oemof and other open models
* Concept, architecture and implementation
* Usage concept
* Mathematical description

If you do not have access to the sciencedirect network you can download the paper for free until the beginning of September using this link.

If you are interested in obtaining the original version of the paper after the  free phase until the beginning of September you can contact us to get your personal copy. Alternatively, you can download an e-print of the last version on arXiv.

Preprint of oemof research paper published

A research paper that analyses how oemof addresses actual and future challenges in energy system modelling has been published by Simon Hilpert and co-authors in a preprint version. Feedback is highly appreciated!

Read the full text version or add comments at preprints.org.

Abstract

The process of modelling energy systems is accompanied by challenges inherently connected with mathematical modelling. Continue reading “Preprint of oemof research paper published”

Improved website under oemof.org

Yesterday we launched our improved website which now contains a library description, a list of applications and a gallery under the new domain www.oemof.org. We are planning to make this site the central place for people who are interested in oemof by providing a general overview. If you have any questions or suggestions, don’t hesitate to contact us!