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July 24, 2026 software Open access Aachen paper

PyPSA/linopy: v0.9.0

Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.21529957 Full text (OA) OpenAlex

Abstract

What's Changed fix(docs): repair mobile sidebar by bumping sphinx-book-theme to 1.2.0 by @FBumann in https://github.com/PyPSA/linopy/pull/779 feat(io): stamp linopy version into netCDF export by @FBumann in https://github.com/PyPSA/linopy/pull/780 fix(io): write LP bounds for tightened binary variables by @FBumann in https://github.com/PyPSA/linopy/pull/777 feat(model): allow {0,1} bounds for binaries in add_variables by @FBumann in https://github.com/PyPSA/linopy/pull/778 bench: internal performance benchmark suite + CodSpeed CI by @FBumann in https://github.com/PyPSA/linopy/pull/781 build(deps-dev): bump matplotlib from 3.9.1 to 3.11.0 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/788 build(deps): bump the github-actions group with 2 updates by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/784 build(deps-dev): bump sphinx from 7.3.7 to 9.0.4 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/789 build(deps-dev): bump pytest from 9.1.0 to 9.1.1 in the benchmark-tooling group by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/785 build(deps-dev): bump sphinx-rtd-theme from 2.0.0 to 3.1.0 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/786 fix(constraints): freeze empty constraint groups without reshape error by @Ketchp in https://github.com/PyPSA/linopy/pull/783 feat(persistent): in-place solver updates (Solver framework + HiGHS/Gurobi/Xpress/Mosek) by @FabianHofmann in https://github.com/PyPSA/linopy/pull/718 build(deps-dev): bump numpydoc from 1.7.0 to 1.10.0 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/787 fix(variables): Variable.where works with solution attached by @FabianHofmann in https://github.com/PyPSA/linopy/pull/790 chore: fix typing with new highspy version by @FBumann in https://github.com/PyPSA/linopy/pull/795 docs: import AGENTS.md into CLAUDE.md by @FBumann in https://github.com/PyPSA/linopy/pull/794 feat(piecewise): active_fill for partial active gates (alt. to #797, #796) by @FBumann in https://github.com/PyPSA/linopy/pull/798 build(deps): bump the github-actions group with 2 updates by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/807 bench: arithmetic operation micro-benchmarks by @FBumann in https://github.com/PyPSA/linopy/pull/805 build(deps-dev): bump pytest-memray from 1.8.0 to 1.9.0 in the benchmark-tooling group by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/808 build(deps-dev): bump ipykernel from 6.29.5 to 7.3.0 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/812 build(deps-dev): bump ipython from 8.26.0 to 9.15.0 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/810 build(deps-dev): bump highspy from 1.13.1 to 1.15.0 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/809 fix: GLPK objective parsing by @danielelerede-oet in https://github.com/PyPSA/linopy/pull/818 [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in https://github.com/PyPSA/linopy/pull/819 fix: widen Variable.sum dim parameter type to DimsLike by @manud99 in https://github.com/PyPSA/linopy/pull/820 perf(groupby): unify scatter kernel over numpy and dask via apply_ufunc by @FBumann in https://github.com/PyPSA/linopy/pull/802 perf: drop explicit zeros from the constraint matrix (#814) by @FBumann in https://github.com/PyPSA/linopy/pull/815 build(deps-dev): update docutils requirement from <0.21 to <0.24 by @dependabot[bot] in https://github.com/PyPSA/linopy/pull/811 perf: default integer arrays to int32 for ~25% memory reduction by @FBumann in https://github.com/PyPSA/linopy/pull/566 perf: prune explicit zeros at matrix assembly (cut build peak memory) by @FBumann in https://github.com/PyPSA/linopy/pull/816 test: make assert_linequal ignore dimension order by @FBumann in https://github.com/PyPSA/linopy/pull/801 docs: list SCIP in supported solvers (README, index) by @FabianHofmann in https://github.com/PyPSA/linopy/pull/825 fix: groupby-sum fast path reduces multi-dim DataArray grouper over all its dims by @FabianHofmann in https://github.com/PyPSA/linopy/pull/824 refactor(int32): per-model label dtype instead of sticky process-global by @FBumann in https://github.com/PyPSA/linopy/pull/828 fix(gurobi): dispose the solver model before the env on close by @FBumann in https://github.com/PyPSA/linopy/pull/826 fix(groupby): align groupers by label, raise on mismatch (#827) by @FBumann in https://github.com/PyPSA/linopy/pull/830 docs: add working-with-solvers notebook for the stateful Solver API by @FBumann in https://github.com/PyPSA/linopy/pull/685 docs: list SCIP in supported solvers by @FabianHofmann in https://github.com/PyPSA/linopy/pull/835 added two example notebooks: energy-resource-build and sudoku by @tpu-brunkhorst in https://github.com/PyPSA/linopy/pull/356 fix(groupby): preserve grouped-dim position in groupby-sum by @FabianHofmann in https://github.com/PyPSA/linopy/pull/860 fix: don't leak aux coords of summed dims onto the term dimension by @FBumann in https://github.com/PyPSA/linopy/pull/829 fix(packaging): ship linopy.remote and linopy.persistent in the wheel by @FBumann in https://github.com/PyPSA/linopy/pull/865 docs: harmonize PR/issue refs in release notes by @FabianHofmann in https://github.com/PyPSA/linopy/pull/866 New Contributors @Ketchp made their first contribution in https://github.com/PyPSA/linopy/pull/783 @manud99 made their first contribution in https://github.com/PyPSA/linopy/pull/820 @tpu-brunkhorst made their first contribution in https://github.com/PyPSA/linopy/pull/356 Full Changelog: https://github.com/PyPSA/linopy/compare/v0.8.0...v0.9.0

Authors 28

  1. Fabian Hofmann
    Affiliation as printed

    Open Energy Transition

  2. Felix
  3. Lukas Trippe

    Technische Universität Berlin

    Affiliation as printed

    Technische Universität Berlin

  4. Jonas Hörsch
    Affiliation as printed

    @open-energy-transition

  5. Ulf Worsøe
    Affiliation as printed

    @MOSEK

  6. Heinz-Alexander Fuetterer

    WZB Berlin Social Science Center

    Affiliation as printed

    @WZBSocialScienceCenter

  7. Fabian Neumann

    Technische Universität Berlin

    Affiliation as printed

    Technische Universität Berlin

  8. Robbie
  9. Siddharth Krishna
    Affiliation as printed

    @open-energy-transition

  10. Florian Maurer Aachen

    FH Aachen

    Affiliation as printed

    University of Applied Sciences Aachen

  11. Henning Blunck

    Deutsche Post (Germany)

    Affiliation as printed

    Deutsche Post DHL Group

  12. Iegor Riepin

    Technische Universität Berlin

    Affiliation as printed

    TU Berlin

  13. Felix Hennings
    Affiliation as printed

    Doing The Math

  14. Max Parzen
    Affiliation as printed

    @open-energy-transition

  15. Oscar Dowson
  16. Michał Marszal
    Affiliation as printed

    IDEA @ NCBJ

  17. Fridolin Glatter

    International Institute for Applied Systems Analysis

    Affiliation as printed

    International Institute for Applied Systems Analysis (IIASA)

  18. Daniel Müller
  19. Bruno Vieira

    Fair Isaac Corporation (United States)

    Affiliation as printed

    FICO

  20. Kristijan Faust
    Affiliation as printed

    @open-energy-transition

  21. ollie-bell
  22. qheuristics
  23. Bobby Xiong

    Technische Universität Berlin

    Affiliation as printed

    Technische Universität Berlin

  24. lumbric
  25. jankaeh
  26. PeterKlein11
  27. Michael Coughlin

    University of Minnesota

    Affiliation as printed

    University of Minnesota

  28. Mayk Thewessen

    Treehouse

    Affiliation as printed

    Treehouse Energy

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