Correct CO2 Management Data

[toniseibold]

Correcting:

• outdated CO2 compression data (Mitsubishi data was for ship transport) with latest AIT study

Checklist

• Code changes are sufficiently documented; i.e. new functions contain docstrings and further explanations may be given in doc. not applicable
• Data source for new technologies is clearly stated.
• Newly introduced dependencies are added to environment.yaml (if applicable). not applicable
• A note for the release notes doc/release_notes.rst of the upcoming release is included.
• I consent to the release of this PR's code under the GPLv3 license.

[Copilot]

Pull request overview

This PR updates the cost/energy assumptions for the CO2 liquefaction technology (used for CO2 conditioning/compression for transport) by replacing the previous Mitsubishi/IEA (2004, ship transport) reference with values from the 2024 AIT study, and propagates the update into generated output cost tables (global and US) plus release notes.

Changes:

• Replace CO2 liquefaction CAPEX/FOM/electricity-input source data with AIT study values (and remove the previous heat-input row).
• Update inputs/manual_input.csv so the compilation pipeline produces the new CO2 liquefaction outputs.
• Add an “Upcoming Release” note documenting the CO2 dense-phase compression update.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
outputs/US/costs_2050.csv	Updates US output rows for CO2 liquefaction to AIT-based assumptions.
outputs/US/costs_2045.csv	Same AIT-based CO2 liquefaction update for 2045 US outputs.
outputs/US/costs_2040.csv	Same AIT-based CO2 liquefaction update for 2040 US outputs.
outputs/US/costs_2035.csv	Same AIT-based CO2 liquefaction update for 2035 US outputs.
outputs/US/costs_2030.csv	Same AIT-based CO2 liquefaction update for 2030 US outputs.
outputs/US/costs_2025.csv	Same AIT-based CO2 liquefaction update for 2025 US outputs.
outputs/US/costs_2020.csv	Same AIT-based CO2 liquefaction update for 2020 US outputs.
outputs/costs_2050.csv	Updates global output rows for CO2 liquefaction to AIT-based assumptions.
outputs/costs_2045.csv	Same AIT-based CO2 liquefaction update for 2045 global outputs.
outputs/costs_2040.csv	Same AIT-based CO2 liquefaction update for 2040 global outputs.
outputs/costs_2035.csv	Same AIT-based CO2 liquefaction update for 2035 global outputs.
outputs/costs_2030.csv	Same AIT-based CO2 liquefaction update for 2030 global outputs.
outputs/costs_2025.csv	Same AIT-based CO2 liquefaction update for 2025 global outputs.
outputs/costs_2020.csv	Same AIT-based CO2 liquefaction update for 2020 global outputs.
inputs/manual_input.csv	Replaces the underlying manual input entries for CO2 liquefaction with AIT-based data.
docs/release_notes.rst	Adds an Upcoming Release bullet about the CO2 dense-phase compression update.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[bobbyxng]

Generally looks good to me, two comments

• consider moving CO2 liquefaction,carbondioxide-input,0,1,t_CO2/t_CO2,-,, into config.default of the pypsa-eur workflow, as this does not add any new data to technology.data
• Add to release_notes the rather big change in CO2 liquefaction capital cost (which make sense as the previous value was simply wrong)

[bobbyxng]

[Comment deleted, wrong PR, nvm]

[fneum]

Looks good, but what I don't understand is the origin of the big cost difference. Perhaps you can explain?

Is the application / process really different? And if yes, should this perhaps be two separate technology names? Could double-check how TRACE uses "CO2 liquefaction" and if current use would be correct there.