Existing stakeholders may find that scary, but it will help the energy transition in the long-run.
Tools like PyPSA-SPICE and others can help lower the barrier to running these tools.
#freethemodels
Tools like PyPSA-SPICE and others can help lower the barrier to running these tools.
#freethemodels
January 12, 2026 at 4:14 PM
Existing stakeholders may find that scary, but it will help the energy transition in the long-run.
Tools like PyPSA-SPICE and others can help lower the barrier to running these tools.
#freethemodels
Tools like PyPSA-SPICE and others can help lower the barrier to running these tools.
#freethemodels
We would like to thank all the contributors and developers who have made PyPSA possible up to this point. This includes those who have contributed code, reported bugs, or provided feedback! We would also like to thank the @dfg.de for funding the recent developments.
#freethemodels #PyPSA
#freethemodels #PyPSA
October 14, 2025 at 4:05 PM
We would like to thank all the contributors and developers who have made PyPSA possible up to this point. This includes those who have contributed code, reported bugs, or provided feedback! We would also like to thank the @dfg.de for funding the recent developments.
#freethemodels #PyPSA
#freethemodels #PyPSA
Open Energy Modelling Tool Tracker (beta) is live! 200+ open-source tools for transparent energy planning. Compare tools by popularity, activity & community. Filter by category, stars, downloads & more.
👉 openmod-tracker.org
#OpenSource #FreeTheModels #EnergyPlanning
👉 openmod-tracker.org
#OpenSource #FreeTheModels #EnergyPlanning
September 22, 2025 at 12:59 PM
Open Energy Modelling Tool Tracker (beta) is live! 200+ open-source tools for transparent energy planning. Compare tools by popularity, activity & community. Filter by category, stars, downloads & more.
👉 openmod-tracker.org
#OpenSource #FreeTheModels #EnergyPlanning
👉 openmod-tracker.org
#OpenSource #FreeTheModels #EnergyPlanning
How interested are grid planners in #OpenSource software solutions? The number of registered participants at our upcoming webinar speaks for itself!
And the interest comes from across the #Energy ecosystem and 50+ countries.
👉 Join us:
www.eventbrite.com/e/webinar-co...
#freethemodels #Innovation
And the interest comes from across the #Energy ecosystem and 50+ countries.
👉 Join us:
www.eventbrite.com/e/webinar-co...
#freethemodels #Innovation
September 11, 2025 at 2:48 PM
How interested are grid planners in #OpenSource software solutions? The number of registered participants at our upcoming webinar speaks for itself!
And the interest comes from across the #Energy ecosystem and 50+ countries.
👉 Join us:
www.eventbrite.com/e/webinar-co...
#freethemodels #Innovation
And the interest comes from across the #Energy ecosystem and 50+ countries.
👉 Join us:
www.eventbrite.com/e/webinar-co...
#freethemodels #Innovation
⚡ It's not just renewables — it's system integration. We asked our Head of Energy System Modeling Dr. Martha Frysztacki about emerging trends and challenges of modeling future grids. This is what she said: www.linkedin.com/feed/update/...
#EnergyTransition #OpenSource #EnergyModeling #freethemodels
#EnergyTransition #OpenSource #EnergyModeling #freethemodels
August 1, 2025 at 6:12 AM
⚡ It's not just renewables — it's system integration. We asked our Head of Energy System Modeling Dr. Martha Frysztacki about emerging trends and challenges of modeling future grids. This is what she said: www.linkedin.com/feed/update/...
#EnergyTransition #OpenSource #EnergyModeling #freethemodels
#EnergyTransition #OpenSource #EnergyModeling #freethemodels
Remember the scramble to find good gas system data after Russia escalated its invasion of Ukraine in 2022? Next time we need to hit the ground running. That means data and models ready to be run by a diverse set of stakeholders.
#freethemodels
#energysky
#freethemodels
#energysky
April 17, 2025 at 6:06 PM
Remember the scramble to find good gas system data after Russia escalated its invasion of Ukraine in 2022? Next time we need to hit the ground running. That means data and models ready to be run by a diverse set of stakeholders.
#freethemodels
#energysky
#freethemodels
#energysky
Only 19 countries have submitted their NDCs, but it is still far when aiming for the Paris Agreement's 1.5°C goal. With open energy modeling, policymakers plan and turn ambition into action.
We can give a hand: openenergytransition...
#ClimateAction #EnergyModeling #ParisAgreement #FreetheModels
We can give a hand: openenergytransition...
#ClimateAction #EnergyModeling #ParisAgreement #FreetheModels
April 4, 2025 at 3:01 PM
Only 19 countries have submitted their NDCs, but it is still far when aiming for the Paris Agreement's 1.5°C goal. With open energy modeling, policymakers plan and turn ambition into action.
We can give a hand: openenergytransition...
#ClimateAction #EnergyModeling #ParisAgreement #FreetheModels
We can give a hand: openenergytransition...
#ClimateAction #EnergyModeling #ParisAgreement #FreetheModels
Global climate goals require a shift in policy, decision-making, and investments, and open energy models can play a crucial role here.
We outline the potentials and benefits in our policy brief: www.linkedin.com/fee... or zenodo.org/records/1...
#FreetheModels #EnergyTransition #OpenSource
We outline the potentials and benefits in our policy brief: www.linkedin.com/fee... or zenodo.org/records/1...
#FreetheModels #EnergyTransition #OpenSource
March 11, 2025 at 4:09 PM
Global climate goals require a shift in policy, decision-making, and investments, and open energy models can play a crucial role here.
We outline the potentials and benefits in our policy brief: www.linkedin.com/fee... or zenodo.org/records/1...
#FreetheModels #EnergyTransition #OpenSource
We outline the potentials and benefits in our policy brief: www.linkedin.com/fee... or zenodo.org/records/1...
#FreetheModels #EnergyTransition #OpenSource
There are open-source alternatives to PLEXOS like our own PyPSA:
github.com/pypsa/pypsa
Besides costing nothing, open source gives you the freedom to inspect and modify the code.
#freethemodels
github.com/pypsa/pypsa
Besides costing nothing, open source gives you the freedom to inspect and modify the code.
#freethemodels
GitHub - PyPSA/PyPSA: PyPSA: Python for Power System Analysis
PyPSA: Python for Power System Analysis. Contribute to PyPSA/PyPSA development by creating an account on GitHub.
github.com
March 2, 2025 at 1:05 PM
There are open-source alternatives to PLEXOS like our own PyPSA:
github.com/pypsa/pypsa
Besides costing nothing, open source gives you the freedom to inspect and modify the code.
#freethemodels
github.com/pypsa/pypsa
Besides costing nothing, open source gives you the freedom to inspect and modify the code.
#freethemodels
Europe needs better, open energy data! And ready-to-go open reference models for fast, reactive analysis. New policy brief from Bruegel runs through the need, the benefits, the costs, the politics.
#freethemodels
#freethemodels
⚡ Europe's energy information problem 🪫
In this Policy brief, @bmcwilliams.bsky.social @tagliapietra.bsky.social and
@gzachmann.bsky.social analyse the issue Europe has with an under-provision of energy information.
🔗 Read the Policy brief here: https://buff.ly/3X9YO0p
#EconSky
In this Policy brief, @bmcwilliams.bsky.social @tagliapietra.bsky.social and
@gzachmann.bsky.social analyse the issue Europe has with an under-provision of energy information.
🔗 Read the Policy brief here: https://buff.ly/3X9YO0p
#EconSky
Europe’s energy information problem
This Policy Brief makes recommendations on how the European energy information problem can be addressed
buff.ly
February 19, 2025 at 9:59 PM
Europe needs better, open energy data! And ready-to-go open reference models for fast, reactive analysis. New policy brief from Bruegel runs through the need, the benefits, the costs, the politics.
#freethemodels
#freethemodels
Feels weird reposting this with everything that's going on, but...
We are compiling an emissions & energy scenario ensemble that will hopefully be useful to IPCC AR7. Submission deadline March 1.
A little step towards #OpenScience and #FreeTheModels...
#ScenarioCompass
We are compiling an emissions & energy scenario ensemble that will hopefully be useful to IPCC AR7. Submission deadline March 1.
A little step towards #OpenScience and #FreeTheModels...
#ScenarioCompass
Scenarios from Integrated Assessment & energy systems models are an important part of the policy discourse for getting to net-zero.
IIASA, IAMC and the Earth Fund are starting a new initiative to make these scenarios more accessible and actionable!
#ScenarioCompass
scenariocompass.org/news
IIASA, IAMC and the Earth Fund are starting a new initiative to make these scenarios more accessible and actionable!
#ScenarioCompass
scenariocompass.org/news
February 18, 2025 at 6:50 AM
Feels weird reposting this with everything that's going on, but...
We are compiling an emissions & energy scenario ensemble that will hopefully be useful to IPCC AR7. Submission deadline March 1.
A little step towards #OpenScience and #FreeTheModels...
#ScenarioCompass
We are compiling an emissions & energy scenario ensemble that will hopefully be useful to IPCC AR7. Submission deadline March 1.
A little step towards #OpenScience and #FreeTheModels...
#ScenarioCompass
Very non-classy move by Energy Exemplar. And a classy response from @nworbmot.bsky.social and TU Berlin. #FreeTheModels!
Energy Exemplar has blocked all TU Berlin students from academic licences for their energy modelling tool PLEXOS because competitor PyPSA is developed here. While deeply shocked, we believe in turning the other cheek. So we are offering all Energy Exemplar employees a free licence for PyPSA.
November 23, 2024 at 9:17 PM
Very non-classy move by Energy Exemplar. And a classy response from @nworbmot.bsky.social and TU Berlin. #FreeTheModels!
🤣 love this! Throw in a free license for GenX and Sienna while you're at it!
Now it's official: we must destroy their value proposition. #FreeTheModels
Open source ftw.
Now it's official: we must destroy their value proposition. #FreeTheModels
Open source ftw.
November 23, 2024 at 1:03 PM
🤣 love this! Throw in a free license for GenX and Sienna while you're at it!
Now it's official: we must destroy their value proposition. #FreeTheModels
Open source ftw.
Now it's official: we must destroy their value proposition. #FreeTheModels
Open source ftw.
Energy Exemplar has blocked all TU Berlin students from academic licences for their energy modelling tool PLEXOS because competitor PyPSA is developed here. While deeply shocked, we believe in turning the other cheek. So we are offering all Energy Exemplar employees a free licence for PyPSA.
November 22, 2024 at 11:02 AM
Also: punishing a whole university for the activities of one research group seems like over-reach.
#freethemodels
#freethemodels
November 22, 2024 at 9:19 AM
Also: punishing a whole university for the activities of one research group seems like over-reach.
#freethemodels
#freethemodels
Well, the choice of name was unfortunate, but this is a really cool initiative... A big step to #FreeTheModels!
Project BlueSky is an EIA initiative to develop a next generation energy systems model.
Today, as a first step, we released an open source BlueSky prototype on GitHub under the Apache 2.0 license 🔌💡
github.com/EIAgov/BlueSky
🧵👇
Today, as a first step, we released an open source BlueSky prototype on GitHub under the Apache 2.0 license 🔌💡
github.com/EIAgov/BlueSky
🧵👇
GitHub - EIAgov/BlueSky
Contribute to EIAgov/BlueSky development by creating an account on GitHub.
github.com
November 1, 2024 at 6:11 AM
Well, the choice of name was unfortunate, but this is a really cool initiative... A big step to #FreeTheModels!
Working with NUTS administrative EU 🇪🇺 regions is one of the little nuisances in #energysystems modelling and scenario analysis.
So the IIASA #ScenarioServices team put together a little #opensource #python utility package..
#pysquirrel #freethemodels
github.com/iiasa/pysqui...
So the IIASA #ScenarioServices team put together a little #opensource #python utility package..
#pysquirrel #freethemodels
github.com/iiasa/pysqui...
GitHub - iiasa/pysquirrel
Contribute to iiasa/pysquirrel development by creating an account on GitHub.
github.com
October 1, 2024 at 6:59 AM
Working with NUTS administrative EU 🇪🇺 regions is one of the little nuisances in #energysystems modelling and scenario analysis.
So the IIASA #ScenarioServices team put together a little #opensource #python utility package..
#pysquirrel #freethemodels
github.com/iiasa/pysqui...
So the IIASA #ScenarioServices team put together a little #opensource #python utility package..
#pysquirrel #freethemodels
github.com/iiasa/pysqui...
New perspective paper!
How can science better serve the needs of building a cleaner Canadian-US energy system?
We highlight gaps in #opensource data & modeling capacity, & argue to #freethemodels.
feat. @rycalder.bsky.social, Stuart Cohen, & Ryan McManamay
iopscience.iop.org/article/10.1...
How can science better serve the needs of building a cleaner Canadian-US energy system?
We highlight gaps in #opensource data & modeling capacity, & argue to #freethemodels.
feat. @rycalder.bsky.social, Stuart Cohen, & Ryan McManamay
iopscience.iop.org/article/10.1...
Decision support for United States—Canada energy integration is impaired by fragmentary environmental and electricity system modeling capacity - IOPscienceSearch
Decision support for United States—Canada energy integration is impaired by fragmentary environmental and electricity system modeling capacity, Ryan S D Calder, Emil Dimanchev, Stuart Cohen, Ryan A McManamay
iopscience.iop.org
September 26, 2024 at 6:02 PM
New perspective paper!
How can science better serve the needs of building a cleaner Canadian-US energy system?
We highlight gaps in #opensource data & modeling capacity, & argue to #freethemodels.
feat. @rycalder.bsky.social, Stuart Cohen, & Ryan McManamay
iopscience.iop.org/article/10.1...
How can science better serve the needs of building a cleaner Canadian-US energy system?
We highlight gaps in #opensource data & modeling capacity, & argue to #freethemodels.
feat. @rycalder.bsky.social, Stuart Cohen, & Ryan McManamay
iopscience.iop.org/article/10.1...
A great day for #opensource #energysystems analysis!
Kudos to the team at the 🇺🇸 Energy Information Administration #EIA for releasing the National Energy Systems Model #NEMS as an open-source tool on #GitHub...
#FreeTheModels for #OpenScience 🔌💡
Kudos to the team at the 🇺🇸 Energy Information Administration #EIA for releasing the National Energy Systems Model #NEMS as an open-source tool on #GitHub...
#FreeTheModels for #OpenScience 🔌💡
At EIA, we just released our National Energy Modeling System (NEMS) — used to produce the Annual Energy Outlook — as an open source product, with additional EIA code to follow. 🔌💡
github.com/EIAgov
github.com/EIAgov
EIAgov - Overview
The U.S. Energy Information Administration collects, analyzes, and disseminates independent and impartial energy information to promote sound policymaking. - EIAgov
github.com
May 15, 2024 at 4:20 AM
A great day for #opensource #energysystems analysis!
Kudos to the team at the 🇺🇸 Energy Information Administration #EIA for releasing the National Energy Systems Model #NEMS as an open-source tool on #GitHub...
#FreeTheModels for #OpenScience 🔌💡
Kudos to the team at the 🇺🇸 Energy Information Administration #EIA for releasing the National Energy Systems Model #NEMS as an open-source tool on #GitHub...
#FreeTheModels for #OpenScience 🔌💡
Great to see the International Energy Agency (IEA) embrace #opensource energy modelling tool PyPSA
used for hourly modelling in their new report on future flexibility needs at different scales (hourly, seasonal, inter-annual)
#openmod #freethemodels
www.iea.org/reports/mana...
used for hourly modelling in their new report on future flexibility needs at different scales (hourly, seasonal, inter-annual)
#openmod #freethemodels
www.iea.org/reports/mana...
Managing the Seasonal Variability of Electricity Demand and Supply – Analysis - IEA
Managing the Seasonal Variability of Electricity Demand and Supply - Analysis and key findings. A report by the International Energy Agency.
www.iea.org
April 24, 2024 at 2:35 PM
Great to see the International Energy Agency (IEA) embrace #opensource energy modelling tool PyPSA
used for hourly modelling in their new report on future flexibility needs at different scales (hourly, seasonal, inter-annual)
#openmod #freethemodels
www.iea.org/reports/mana...
used for hourly modelling in their new report on future flexibility needs at different scales (hourly, seasonal, inter-annual)
#openmod #freethemodels
www.iea.org/reports/mana...
How can Kazakhstan phase out coal and increase its share of wind and solar?
Take a peak below.
Modelling done with PyPSA, all code and data open:
github.com/pypsa-meets-...
#freethemodels
Take a peak below.
Modelling done with PyPSA, all code and data open:
github.com/pypsa-meets-...
#freethemodels
📢 NEW publication: Kazakhstan could quadruple the share of variable #renewableenergy in its power mix to 20 percent by 2030, bringing it more in line with its 2060 #carbonneutrality target. 1/5
February 28, 2024 at 1:09 PM
How can Kazakhstan phase out coal and increase its share of wind and solar?
Take a peak below.
Modelling done with PyPSA, all code and data open:
github.com/pypsa-meets-...
#freethemodels
Take a peak below.
Modelling done with PyPSA, all code and data open:
github.com/pypsa-meets-...
#freethemodels
My Bluesky (formerly Twitter) philosophy...
- 75% work: climate change mitigation, scientific software, #FAIRdata, #opensource & #freethemodels, ... (mostly English)
- 20% Vienna politics related to climate & mobility policy (trying to stay clear of party-politics, mostly German)
- 5% random
- 75% work: climate change mitigation, scientific software, #FAIRdata, #opensource & #freethemodels, ... (mostly English)
- 20% Vienna politics related to climate & mobility policy (trying to stay clear of party-politics, mostly German)
- 5% random
October 10, 2023 at 5:09 AM
My Bluesky (formerly Twitter) philosophy...
- 75% work: climate change mitigation, scientific software, #FAIRdata, #opensource & #freethemodels, ... (mostly English)
- 20% Vienna politics related to climate & mobility policy (trying to stay clear of party-politics, mostly German)
- 5% random
- 75% work: climate change mitigation, scientific software, #FAIRdata, #opensource & #freethemodels, ... (mostly English)
- 20% Vienna politics related to climate & mobility policy (trying to stay clear of party-politics, mostly German)
- 5% random
Matt Toombs of @energygovuk kicking off the 2050 Energy Calculator Conference in Richmond, London. Thx @samvaillanc for scoring me an invite. Vital work - you can't get from A to B without a roadmap, one which everyone can understand. And a great example of #FreeTheModels!
November 13, 2024 at 2:43 AM
Matt Toombs of @energygovuk kicking off the 2050 Energy Calculator Conference in Richmond, London. Thx @samvaillanc for scoring me an invite. Vital work - you can't get from A to B without a roadmap, one which everyone can understand. And a great example of #FreeTheModels!
So, bottom line, great teamwork from a lot of people. Well done all, and thank you @fbirol and @IEA!
#freethemodels #openmod #opensource
#freethemodels #openmod #opensource
November 13, 2024 at 5:48 AM
So, bottom line, great teamwork from a lot of people. Well done all, and thank you @fbirol and @IEA!
#freethemodels #openmod #opensource
#freethemodels #openmod #opensource
There have been many people involved along the way. Of particular note, everyone behind @openmod #openmod, @daniel_huppmann, @nworbmot. I would like to think I gave them a modicum of useful support via my #freethemodels hashtag.
November 13, 2024 at 5:32 AM
There have been many people involved along the way. Of particular note, everyone behind @openmod #openmod, @daniel_huppmann, @nworbmot. I would like to think I gave them a modicum of useful support via my #freethemodels hashtag.