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add HDPE water pipeline and water booster pump - #277

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doneachh:additional-water-data
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add HDPE water pipeline and water booster pump#277
doneachh wants to merge 10 commits into
PyPSA:masterfrom
doneachh:additional-water-data

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@doneachh

@doneachh doneachh commented May 31, 2026 •
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Closes # (if applicable).

Changes proposed in this Pull Request

Adding costs for HDPE water pipelines and pumps -> needed for integration of desalination and water management in pypsa-earth

Checklist

  • Code changes are sufficiently documented; i.e. new functions contain docstrings and further explanations may be given in doc.
  • Data source for new technologies is clearly stated.
  • Newly introduced dependencies are added to environment.yaml (if 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.

@doneachh

doneachh commented Jun 8, 2026

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Hi @euronion :)
are you able to review this. I would need it for this PR: pypsa-meets-earth/pypsa-earth#1858
Thanks a lot.

@euronion

euronion commented Jun 11, 2026

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Yes, I'll review. Next time feel free to ping me with the PR as soon as you feel like it is ready for review. :)

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euronion self-requested a review June 11, 2026 07:32
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euronion requested changes Jun 11, 2026
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Thanks for the contribution, see the comments below and let me know if you have any question!

Comment thread docs/release_notes.rst Outdated
Comment thread inputs/manual_input.csv Outdated
Comment thread inputs/manual_input.csv Outdated
Comment thread inputs/manual_input.csv Outdated
Comment thread inputs/manual_input.csv Outdated
@doneachh @euronion
Update docs/release_notes.rst
04b2219 
Co-authored-by: Johannes HAMPP <42553970+euronion@users.noreply.github.com>
@doneachh doneachh mentioned this pull request Jul 1, 2026
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@doneachh

doneachh commented Jul 24, 2026

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@euronion sorry for taking so long to get back to you - I tried to resolve all your comments, please review and feel free to ping me if something should be handled differently. Thanks :)

@doneachh
doneachh requested a review from euronion August 13, 2026 07:59
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euronion requested changes Aug 18, 2026
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Mostly looking good. Two pieces of information are missing that I could not infer based on the information that you have added. Check my comments. After you have added them we are good to merge !

Comment thread inputs/manual_input.csv Outdated
water pipeline HDPE (171.65mm 16 bar),investment,2023,1588,EUR/(m^3-H2O/h)/km,2022,"HYPAT_WP_Water-Supply-for-Electrolysis-Plants, https://hypat.de/hypat-wAssets/docs/new/publikationen/HYPAT_WP_Water-Supply-for-Electrolysis-Plants.pdf, Sec. 4.3 + 8.1; accessed 2026-06-15 -> Based on pipe diamter 171.65mm and 16 Bars with flow 34.71 kg/s. Considered mass flow rate for 1000 MW Electrolyzer",High-density polyethylene (HDPE) water pipeline cost
water pipeline HDPE (171.65mm 16 bar),FOM,2023,5,%/year,2022,"HYPAT_WP_Water-Supply-for-Electrolysis-Plants, https://hypat.de/hypat-wAssets/docs/new/publikationen/HYPAT_WP_Water-Supply-for-Electrolysis-Plants.pdf, Sec. 4.3 + 8.1; accessed 2026-06-15",
water pipeline HDPE (171.65mm 16 bar),lifetime,2023,50,years,2022,"HYPAT_WP_Water-Supply-for-Electrolysis-Plants, https://hypat.de/hypat-wAssets/docs/new/publikationen/HYPAT_WP_Water-Supply-for-Electrolysis-Plants.pdf, Sec 4.3 + 8.1; accessed 2026-06-15",
water pipeline booster pump,investment,1981,4775,EUR/kW,2022,"Calculated based on HYPAT_WP_Water-Supply-for-Electrolysis-Plants, https://hypat.de/hypat-wAssets/docs/new/publikationen/HYPAT_WP_Water-Supply-for-Electrolysis-Plants.pdf, Sec. 4.3 + 8.1, Eq. 17 and Monterey County report (1981) using 2% annual inflation; accessed 2026-06-15","Cost of water booster pump per horsepower. Pumping station cost scaled via power law (exponent 0.558). Base value 15,570 USD/HP (1981) inflated to 2022. Reference kW size used for this specific EUR/kW value!"

@euronion euronion Aug 18, 2026

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Please add the value you used for conversion from USD to EUR

Comment thread inputs/manual_input.csv Outdated
oil,fuel,2040,33.6,EUR/MWh,2021,"ENTSO-E & ENTSOG TYNDP 2024 Scenarios Inputs Commodity Prices, https://2024-data.entsos-tyndp-scenarios.eu/files/scenarios-inputs/Prices.zip, accessed: 2026-02-03.","Based on IEA 2022 (APS) data, 3.6 GJ/MWh, heavy oil, modelled from crude oil price (+5%)"
oil,fuel,2050,32.5,EUR/MWh,2021,"ENTSO-E & ENTSOG TYNDP 2024 Scenarios Inputs Commodity Prices, https://2024-data.entsos-tyndp-scenarios.eu/files/scenarios-inputs/Prices.zip, accessed: 2026-02-03.","Based on IEA 2022 (APS) data, 3.6 GJ/MWh, heavy oil, modelled from crude oil price (+5%)" No newline at end of file
oil,fuel,2050,32.5,EUR/MWh,2021,"ENTSO-E & ENTSOG TYNDP 2024 Scenarios Inputs Commodity Prices, https://2024-data.entsos-tyndp-scenarios.eu/files/scenarios-inputs/Prices.zip, accessed: 2026-02-03.","Based on IEA 2022 (APS) data, 3.6 GJ/MWh, heavy oil, modelled from crude oil price (+5%)"
water pipeline HDPE (171.65mm 16 bar),investment,2023,1588,EUR/(m^3-H2O/h)/km,2022,"HYPAT_WP_Water-Supply-for-Electrolysis-Plants, https://hypat.de/hypat-wAssets/docs/new/publikationen/HYPAT_WP_Water-Supply-for-Electrolysis-Plants.pdf, Sec. 4.3 + 8.1; accessed 2026-06-15 -> Based on pipe diamter 171.65mm and 16 Bars with flow 34.71 kg/s. Considered mass flow rate for 1000 MW Electrolyzer",High-density polyethylene (HDPE) water pipeline cost

@euronion euronion Aug 18, 2026

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From this information I cannot find the value in the document. Did you extract the value from Figure 4-7 maybe? If so, can you add to the comment what the value in the figure is, that you converted from EUR-2022/km to EUR-2022/(m^3-H2O/h)/km?

@doneachh
doneachh requested a review from euronion August 19, 2026 07:35
@doneachh

doneachh commented Aug 19, 2026

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Mostly looking good. Two pieces of information are missing that I could not infer based on the information that you have added. Check my comments. After you have added them we are good to merge !

Added them :)

euronion
euronion approved these changes Aug 20, 2026
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Thanks, LGTM!

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