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Welcome to the PyPSA mailing list!

This is a mailing list for users of the PyPSA ecosystem.

http://pypsa.org/

It is meant primarily to announce relevant information about changes to the software and to ask general questions about the software.

In case of code-related questions, please post on stack overflow.
For non-programming-related and more general questions, please refer to the mailing list.
To discuss with other PyPSA users, organise projects, share news, and contact the community, you can use the Discord server: https://discord.gg/JTdvaEBb.
For bugs and feature requests, please use the issue tracker.
We strongly welcome anyone interested in providing contributions to this project. If you have any ideas or suggestions or encounter problems, feel invited to file issues or make pull requests on Github.

The contents of this Google group are publicly available; members can see other members but not their email addresses.

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May 5

why is the sum of opex and capex from the statistics module different from the sum n.objective+n.objective_constant ?

Dear all, I have some pypsa-eur runs ran with v2025.01.0 of the code downloaded in late January, I

unread,

why is the sum of opex and capex from the statistics module different from the sum n.objective+n.objective_constant ?

Dear all, I have some pypsa-eur runs ran with v2025.01.0 of the code downloaded in late January, I

May 5

Apr 25

Multilinks with 'bus2' throw Error after switching to newest release

Hi again, I figured it out. In the doc for Multilinks it is suggested to leave empty fields as empty

unread,

Multilinks with 'bus2' throw Error after switching to newest release

Hi again, I figured it out. In the doc for Multilinks it is suggested to leave empty fields as empty

Apr 25

Alicia Mortera Canga

Apr 24

Possible inconsistency in EV charging profile in prepare_sector_network.py

Hi all, While analyzing the EV transport implementation in prepare_sector_network.py, I noticed what

unread,

Possible inconsistency in EV charging profile in prepare_sector_network.py

Hi all, While analyzing the EV transport implementation in prepare_sector_network.py, I noticed what

Apr 24

Sebastian Wurm, … Markus Groissböck7

Apr 14

Why does PyPSA curtail renewable generators

Thank you everyone for your helpful remarks and advice! markus.gr...@gmx.at schrieb am Freitag, 11.

unread,

Why does PyPSA curtail renewable generators

Thank you everyone for your helpful remarks and advice! markus.gr...@gmx.at schrieb am Freitag, 11.

Apr 14

Joe Shull, Johannes Hampp2

Apr 14

Timeseries cost curves

Hi there, Please note we are switching to Discord for questions and discussions on PyPSA-Eur, see

unread,

Timeseries cost curves

Hi there, Please note we are switching to Discord for questions and discussions on PyPSA-Eur, see

Apr 14

Halvor Winberg, Johannes Hampp2

Apr 14

Nuclear in PyPSA-EUR

Dear Halvor, Please note we are switching to Discord for questions and discussions on PyPSA-Eur, see

unread,

Nuclear in PyPSA-EUR

Dear Halvor, Please note we are switching to Discord for questions and discussions on PyPSA-Eur, see

Apr 14

Diego Rios, Johannes Hampp3

Apr 11

Process MemTimer-1, Broken Pipe Error

Hello Johannes and thanks for the answer. So, I tried with WSL and it works fine! It is much faster

unread,

Process MemTimer-1, Broken Pipe Error

Hello Johannes and thanks for the answer. So, I tried with WSL and it works fine! It is much faster

Apr 11

Hannes Findeisen2

Apr 10

Error in build_renewable_profiles PyPSA-Eur

I changed back to the OSM-prebuilt version, and it works fine. Hannes Findeisen schrieb am Dienstag,

unread,

Error in build_renewable_profiles PyPSA-Eur

I changed back to the OSM-prebuilt version, and it works fine. Hannes Findeisen schrieb am Dienstag,

Apr 10

Liam Dauchat, … Fabian Neumann3

Apr 1

Build cutout 2024 - request too large

Could also be a new restriction with the new CDSAPI. Try `cutout.prepare(monthly_requests=True)`. On

unread,

Build cutout 2024 - request too large

Could also be a new restriction with the new CDSAPI. Try `cutout.prepare(monthly_requests=True)`. On

Apr 1

gktho...@gmail.com, … Matthew Smith10

Apr 1

Implement rolling horizon with linopy model including hourly constraints

Hi, Please see this thread. We don't need to reference the model variable. https://groups.google.

unread,

Implement rolling horizon with linopy model including hourly constraints

Hi, Please see this thread. We don't need to reference the model variable. https://groups.google.

Apr 1

Gianmarco Petracchin

Apr 1

Error in build_renewable_profiles

Hi all! I am currently running solve_sector_networks for Denmark as an island. I am doing some test

unread,

Error in build_renewable_profiles

Hi all! I am currently running solve_sector_networks for Denmark as an island. I am doing some test

Apr 1

Apr 1

[PyPSA-Eur] Error in changing snapshots and/or resolution_elec

Hi everyone! I am new in PyPSA. base_s_6_elec_.nc example works well. I am currently tryting to

unread,

[PyPSA-Eur] Error in changing snapshots and/or resolution_elec

Hi everyone! I am new in PyPSA. base_s_6_elec_.nc example works well. I am currently tryting to

Apr 1

Jessica Guichard, … Johannes Hampp3

Mar 31

Typical durations of long simulations?

Typically minutes, maximum a day for complex cases. To add to Fabian's response: You can also

unread,

Typical durations of long simulations?

Typically minutes, maximum a day for complex cases. To add to Fabian's response: You can also

Mar 31

Hakon, Fabian Neumann6

Mar 28

Memory use experiences

Thank you for the thorough response and for giving me a better idea of what is suitable

unread,

Memory use experiences

Thank you for the thorough response and for giving me a better idea of what is suitable

Mar 28

Carlos Olmos Alonso, Jonas Blomberg Ghini4

Mar 28

Error using 2 multilinks delivering the same 2 energy outputs

Hi, Well, I think what we as users need to keep in mind is that pypsa doesn't really "do

unread,

Error using 2 multilinks delivering the same 2 energy outputs

Hi, Well, I think what we as users need to keep in mind is that pypsa doesn't really "do

Mar 28

tanne heemsbergen

Mar 28

BESS imbalance market

Dear PyPSA team, I am trying to model the behavior of the imbalance market, with the input of the ISP

unread,

BESS imbalance market

Dear PyPSA team, I am trying to model the behavior of the imbalance market, with the input of the ISP

Mar 28

Sebastian Wurm, Fabian Neumann4

Mar 28

Using a negative load for laod shedding

We're aiming to phase-out the Google group and migrate discussions to Discord: https://discord.gg

unread,

Using a negative load for laod shedding

We're aiming to phase-out the Google group and migrate discussions to Discord: https://discord.gg

Mar 28

Timon Renzelmann, Fabian Neumann2

Mar 28

[PyPSA-Eur] Emission factors for wind and solar

I assume you want to consider specific CO2 emissions per capacity built, not tied to the dispatch.

unread,

[PyPSA-Eur] Emission factors for wind and solar

I assume you want to consider specific CO2 emissions per capacity built, not tied to the dispatch.

Mar 28

Mar 19

Configuring Pypsa-de with a computer cluster

Hi, I am using the pypsa-de version with focus on the German grid and wonder if there is a function

unread,

Configuring Pypsa-de with a computer cluster

Hi, I am using the pypsa-de version with focus on the German grid and wonder if there is a function

Mar 19

Alexander Meisinger, Fabian Neumann3

Mar 18

Custom Wildcards in PyPSA

Dear Fabian, this helps a lot. Thanks for your answer! Best regards, Alex On Wednesday, 12 March 2025

unread,

Custom Wildcards in PyPSA

Dear Fabian, this helps a lot. Thanks for your answer! Best regards, Alex On Wednesday, 12 March 2025

Mar 18

gktho...@gmail.com, … Wasserstoffatlas9

Mar 13

How to use `get_bus_and_carrier_and_bus_carrier` instead of setting 'aggregate_bus' to False?

Dear All, thanks Leon, worked for me! On Wednesday, March 12, 2025 at 6:15:09 PM UTC+1 energyLS wrote

unread,

How to use `get_bus_and_carrier_and_bus_carrier` instead of setting 'aggregate_bus' to False?

Dear All, thanks Leon, worked for me! On Wednesday, March 12, 2025 at 6:15:09 PM UTC+1 energyLS wrote

Mar 13

Mar 12

Timeseries Modelling within a designed network

Hello, I have questions regarding the PyPSA core package. I would be extremely happy if you or a

unread,

Timeseries Modelling within a designed network

Hello, I have questions regarding the PyPSA core package. I would be extremely happy if you or a

Mar 12

Matthew Smith, Johannes5

Mar 12

Speeding up solving times with highs

How to set the solver options from a txt file. Note that, unfortunately, these options haven't

unread,

Speeding up solving times with highs

How to set the solver options from a txt file. Note that, unfortunately, these options haven't

Mar 12

Matthew Smith, Jonas Hörsch3

Mar 11

Constraint not working properly when optimizing with rolling horizon

Hi Matt, your `extra_functionality` callback function should not call `create_model`, that is done

unread,

Constraint not working properly when optimizing with rolling horizon

Hi Matt, your `extra_functionality` callback function should not call `create_model`, that is done

Mar 11

marilena, Bobby Xiong5

Mar 11

build_osm_boundaries.py error

Thanks again Bobby for the input. I installed WSL to run locally. First I attempted to run the whole

unread,

build_osm_boundaries.py error

Thanks again Bobby for the input. I installed WSL to run locally. First I attempted to run the whole

Mar 11

Katherine Shaw2

Mar 6

Apologies! It was an issue on my end not on the repository On Thursday, 6 March 2025 at 16:55:15 UTC

unread,

Apologies! It was an issue on my end not on the repository On Thursday, 6 March 2025 at 16:55:15 UTC

Mar 6

Matthew Smith, Priftis Konstantinos5

Mar 4

Constraint preventing simultaneous dispatch

Hi K, Thank you for the solution. The drawback is that to get the Gflex_on (Generator-status)

unread,

Constraint preventing simultaneous dispatch

Hi K, Thank you for the solution. The drawback is that to get the Gflex_on (Generator-status)

Mar 4

Alexander Meisinger, Fabian Hofmann10

Feb 25

Analyse a specific country in a European based energy system via energy_balance()

Hey Fabian, thank you for your reply! I found some parameters about "spatial" and "

unread,

Analyse a specific country in a European based energy system via energy_balance()

Hey Fabian, thank you for your reply! I found some parameters about "spatial" and "

Feb 25

Matthew Smith, Tom Adams3

Feb 23

Modelling set build out schedule

Thanks Tom, that seems like it would work well. Generators, links and storage units all have the

unread,

Modelling set build out schedule

Thanks Tom, that seems like it would work well. Generators, links and storage units all have the

Feb 23

Tobie Nortje, Fabian Hofmann2

Feb 19

Link active power variable (Link-p), select 'where' condition

Dear Tobie, unfortunately, what you are trying todo does not work out in that way. Linopy would need

unread,

Link active power variable (Link-p), select 'where' condition

Dear Tobie, unfortunately, what you are trying todo does not work out in that way. Linopy would need

Feb 19

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