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PyPSA

11 indexed repositories · View on GitHub

PyPSA
PyPSA: Python for Power System Analysis

Python · 2153 stars
pypsa-eur
PyPSA-Eur: A Sector-Coupled Open Optimisation Model of the European Energy System

Python · 614 stars
atlite
atlite: A Lightweight Python Package for Calculating Renewable Power Potentials and Time Series

Python · 402 stars
linopy
Linear optimization with N-D labeled arrays in Python

Python · 257 stars
powerplantmatching
Set of tools to combine multiple power plant databases

Python · 227 stars
pypsa-usa
PyPSA-USA: An Open-Source Energy System Optimization Model for the United States

Python · 148 stars
technology-data
Compiles assumptions on energy system technologies (e.g. costs and efficiencies) for various years.

Python · 130 stars
pypsa-de
PyPSA-DE: High resolution, sector-coupled model of the German Energy System

Python · 50 stars
PyPSA-China
PyPSA-China: An Open Optimisation model of the Chinese Energy System

Python · 44 stars
pypsa-app

Python · 25 stars
pypsa.org

HTML · 3 stars

Beginner friendly Everything

Open All

Provenance and licence of the provincial hourly load files in resources/data/load/ Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PyPSA/PyPSA-China#104 · Opened Sep 16, 2026
Add `force synthetic` option to load configuration Open

Difficulty 3/5 1-2 days Newbie friendliness 64/100

PyPSA/pypsa-eur#2295 · Opened Sep 16, 2026
Compute IIS with highs Open

enhancement solver interface

PyPSA/linopy#956 · 1 assignee · Opened Sep 15, 2026
Version 0.9? Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 38/100

PyPSA/powerplantmatching#315 · 2 comments · Opened Sep 13, 2026
add_piecewise_formulation use case: snapshot-dimensioned breakpoints (PyPSA/PyPSA#1914) Open

enhancement model formulation

Difficulty 1/5 Under an hour Newbie friendliness 35/100

PyPSA/linopy#953 · Opened Sep 10, 2026
Piecewise costs: allow breakpoints to carry a snapshot dimension Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/PyPSA#1914 · Opened Sep 10, 2026
Include `retro_endogen` in CI tests Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

PyPSA/pypsa-eur#2290 · Opened Sep 9, 2026
Stochastic optimization doesn't work with unit commitment on Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 68/100

PyPSA/PyPSA#1913 · Opened Sep 8, 2026
Mosek output not shown in console when log_fn is set Open

bug solver interface

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

PyPSA/linopy#948 · Opened Sep 8, 2026
Update planned transmission project coverage from recent national grid plans Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/pypsa-eur#2289 · Opened Sep 8, 2026
CSRConstraint drops auxiliary coordinates when a sparse expression becomes a constraint Open

bug data-model sparse

Difficulty 4/5 3-5 days Newbie friendliness 62/100

PyPSA/linopy#941 · Opened Sep 7, 2026
docs: Old URL links Open

PyPSA/pypsa-eur#2288 · 1 comment · 1 assignee · Opened Sep 5, 2026
Zero culling forces model rebuilding Open

bug data-model performance

Difficulty 4/5 3-5 days Newbie friendliness 58/100

PyPSA/linopy#925 · Opened Sep 4, 2026
spec: grouped operators crash on string labels under pandas 3.0 (ArrowStringArray) Open

bug math-spec

Difficulty 3/5 1-2 days Newbie friendliness 76/100

PyPSA/linopy#924 · Opened Sep 4, 2026
Math-spec integration Open

enhancement math-spec

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/linopy#919 · 2 comments · Opened Sep 3, 2026
Scale SLURM memory requests to network size; measure them with a benchmark sweep Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

PyPSA/pypsa-usa#811 · Opened Sep 3, 2026
data: Add ACER's CONE study Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PyPSA/technology-data#284 · Opened Sep 2, 2026
Linearized unit commitment does not work properly in rolling horizon mode Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 52/100

PyPSA/PyPSA#1905 · Opened Sep 2, 2026
Slurm resource requests are v0-stale and heavily over-provisioned for the v1 pipeline Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

PyPSA/pypsa-usa#808 · 1 comment · Opened Sep 1, 2026
Imports priced at EIA retail rate despite 'wholesale' label Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

PyPSA/pypsa-usa#807 · 1 reaction · Opened Sep 1, 2026
Vectorize natural gas constraints Open

enhancement Sector

Difficulty 3/5 1-2 days Newbie friendliness 68/100

PyPSA/pypsa-usa#804 · Opened Aug 31, 2026
energy_penalty() applies the capture energy penalty to only one of six technologies Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

PyPSA/technology-data#283 · Opened Aug 31, 2026
Hydro revamp: inflow-driven representation via atlite Cutout.hydro with PUDL plant data Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/pypsa-usa#795 · Opened Aug 29, 2026
Mechanically-safe cleanups — 57 items, no behaviour change Open

chore good first issue

Difficulty 5/5 Over a week Newbie friendliness 45/100

PyPSA/pypsa-usa#782 · Opened Aug 24, 2026
Bulk code cleanliness review — sector coupling Open

chore Sector

PyPSA/pypsa-usa#781 · 1 comment · 1 assignee · Opened Aug 24, 2026
Bulk code cleanliness review — general (non-sector) Open

chore

Difficulty 5/5 Over a week Newbie friendliness 15/100

PyPSA/pypsa-usa#780 · Opened Aug 24, 2026
Allow `tsam` time segmentation clustering for multi-horizon networks Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/PyPSA#1882 · Opened Aug 17, 2026
Interpolating data for higher-resolution pathway studies Open

feature

Difficulty 4/5 3-5 days Newbie friendliness 38/100

PyPSA/technology-data#282 · 4 comments · Opened Aug 14, 2026
Add LazyExpresssions Open

data-model enhancement math-spec

Difficulty 5/5 Over a week Newbie friendliness 25/100

PyPSA/linopy#888 · Opened Aug 12, 2026
Add Zarr format for CDS pipeline Open

type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/atlite#517 · Opened Aug 12, 2026
clusters=all does not work with `build_powerplants` Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

PyPSA/pypsa-eur#2262 · 1 comment · Opened Aug 11, 2026
Accidental addition of `workflow/config/config.yaml` Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 78/100

PyPSA/pypsa-usa#771 · Opened Aug 6, 2026
Missing top level config values Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

PyPSA/pypsa-usa#770 · 1 comment · Opened Aug 6, 2026
DuckDB compatibility with HPC resources Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PyPSA/pypsa-usa#768 · 1 comment · 1 reaction · Opened Aug 6, 2026
Snakemake version 8+ doesn't handle local imports appropriately Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PyPSA/pypsa-usa#767 · 1 comment · Opened Aug 6, 2026
Silent data mutation, missing provenance in the compile pipeline and DEA URL (404) Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

PyPSA/technology-data#281 · Opened Jul 31, 2026
Unsupported python version 3.14 Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

PyPSA/pypsa-eur#2245 · Opened Jul 29, 2026
Labelling the loadshedding carrier Open

PyPSA/PyPSA#1848 · 1 assignee · Opened Jul 27, 2026
Move to mkdocs (or equivalent) for docs Open

documentation

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/linopy#873 · 3 comments · Opened Jul 27, 2026
Renaming attributes/variables Open

breaking needs discussion

Difficulty 4/5 3-5 days Newbie friendliness 45/100

PyPSA/PyPSA#1836 · Opened Jul 24, 2026
[Meta] Potential Breaking Changes Open

breaking needs discussion

Difficulty 5/5 Over a week Newbie friendliness 25/100

PyPSA/PyPSA#1835 · Opened Jul 23, 2026
Make the netCDF data model actually dimensional Open

IO needs discussion

Difficulty 5/5 Over a week Newbie friendliness 25/100

PyPSA/PyPSA#1828 · 1 comment · Opened Jul 21, 2026
Icechunk Zarr backend Open

IO

Difficulty 4/5 3-5 days Newbie friendliness 45/100

PyPSA/PyPSA#1826 · 1 comment · Opened Jul 20, 2026
Plan: v1 semantics community discussion (open after #717 merges) Open

discussion model formulation v1

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PyPSA/linopy#857 · Opened Jul 20, 2026
Trim logging from optimization calls in docs Open

PyPSA/PyPSA#1818 · 1 assignee · Opened Jul 16, 2026
Remove legacy semantics at linopy 1.0 (Stage 3) Open

model formulation refactor v1

Difficulty 4/5 3-5 days Newbie friendliness 45/100

PyPSA/linopy#846 · Opened Jul 16, 2026
Make v1 the default arithmetic convention (Stage 2) Open

enhancement model formulation v1

Difficulty 5/5 Over a week Newbie friendliness 35/100

PyPSA/linopy#845 · Opened Jul 16, 2026
Non-uniform spatial resolution of cutouts leads silently to unexpected results Open

type: bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PyPSA/atlite#515 · 1 comment · 1 reaction · Opened Jul 14, 2026
Dateline-crossing regions lead to value error when using cutout Open

type: bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PyPSA/atlite#514 · Opened Jul 13, 2026
Add PyPSA-China Model Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

PyPSA/pypsa.org#19 · Opened Jul 13, 2026

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