Enhanced Geothermal Systems by LukasFrankenQ · Pull Request #733 · PyPSA/pypsa-eur

LukasFrankenQ · 2023-09-05T14:00:51Z

Addresses #541.

Adds enhanced geothermal systems (EGS) for electricity generation and combined heat and power.

This PR adds EGS to PyPSA-Eur. EGS refers to extracting heat from engineered (e.g. fractured) hot dry rock in deep geological layers. The main features are

Inclusion of potentials for egs capacity for electricity generation and the respective capital costs, based on geothermal gradients, subsurface heat conductivity based on Aghahosseini, Breyer 2020.
EGS for combined heat and power; if urban central heat is found in the network, EGS generates both for AC and urban central heat, respecting preliminary findings from the upcoming paper: CHP operation is most cost-effective.
A switch in the config that makes either optimistic or pessimistic assumptions on future developments of EGS cost. In the case of optimism the cost reduces exponentially towards 2050, replicating estimations made in the Aghahosseini et al. (2020). That paper assumes a cost reduction of 7.5% for each doubling in installed capacity, paired with an exponential increase in installed capacity towards 2050. The switch is by default set to the pessimist version, where the costs remain at their estimated 2020 level.
Flexible EGS which adds a storage unit to the generation nodes. Its use represents the application of backpressure to the production well, and boosted generation afterwards, see Ricks et al. 2023.
A switch that makes the execution more performant, and checks afterwards if that choice potentially changed model results.
Temperature-dependent capacity factors. Research suggests that EGS runs more efficiently when ambient temperatures are lower relative to the temperature for which the plant was planned. This induces time-dependent efficiencies, which can be switched on in the config.

This PR is how sharp, but crashed without adding the attached file to the databundle (egs_costs.json), and also needs a PR for organic rankine cycles just added to tech-data.

More long-term but very relevant features could be deep geothermal aquifers, along the lines of the recently completed district heating project finished in Munich.

Please let me know about any ideas and suggestions that you have :)
All the best,
Lukas

Checklist

I tested my contribution locally and it seems to work fine.
Code and workflow changes are sufficiently documented.
Changed dependencies are added to envs/environment.yaml.
Changes in configuration options are added in all of config.default.yaml.
Changes in configuration options are also documented in doc/configtables/*.csv.
A release note doc/release_notes.rst is added.
Fixed pre-commit issues

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pz-max · 2023-10-26T11:39:42Z

@LukasFrankenQ is the dataset behind that also globally available?
What's missing in this PR as it is still in draft mode?

LukasFrankenQ · 2023-11-01T16:34:36Z

Hi @pz-max, yeah valid points, the dataset is from the plotting in Aghahosseini et al.. In the original supplemental of that paper, only a country-aggregated version was included, through a mail exchange the lon-lat version of the data used here was given to me. The file would need to be added to the databundle, this is the main reason it is just a draft right now

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LukasFrankenQ · 2023-11-25T13:02:20Z

Alright, many thanks for the review @lisazeyen! Will make the changes!

lisazeyen · 2024-03-25T08:55:46Z

@LukasFrankenQ should I have another look at the PR? If so, can you update to the latest master?

LukasFrankenQ · 2024-03-25T13:43:20Z

@lisazeyen Thank you for the offer! I would work on it for one/two more days, mainly I would like to use the adjustments in the config to take care of the cost reductions. I would also remove the performant part :)

LukasFrankenQ · 2024-03-26T23:08:21Z

Hi @lisazeyen, I think it would be ready now for another round.

I should note that it this PR depends on a cost file compiled by technology-data including the PR on organic Rankine cycles (PyPSA/technology-data#111)

fneum · 2024-05-12T16:15:07Z

The corresponding PR for technology-data is now merged and included in the new release.

LukasFrankenQ · 2024-05-18T18:45:07Z

Awesome, many thanks @fneum. Will shortly update to newest commits!

a/pypsa-eur

LukasFrankenQ · 2024-05-31T23:42:16Z

Hi @lisazeyen, Hi @fneum, I updated the PR, made some final checks for bugs and tested an array of configurations. Everything seems to run smooth, and should be implemented as discussed.

There are two points/questions that are still open:

I took some freedom to make the logging within prepare_sector_network quite verbose. I think the user is passed some useful (necessary?) information on how to use the EGS feature though, so I think it could be worth it - given the default of EGS being not enabled. If EGS is enabled, the user probably cares about these details.
The default execution appears to not use the latest cost files created by technology-data which crashes the code, probably a standard problem for which you have a procedure in place?

Eager to hear any feedback beyond this, and
All the best,
Lukas

lisazeyen · 2024-06-03T08:08:46Z

@LukasFrankenQ great!

Awesome that you added some logging inforamtion there. I think this is going to be useful.
In the config.yamlyou specify the technology data version here. And I think in the latest version all your cost data should be included. Can you double check that this is the reason that the workflow is not running?

LukasFrankenQ · 2024-06-03T11:00:41Z

Hi @lisazeyen, thanks for getting back so quickly!
Great call about the config, I figured it out, when running the workflow in testing, I originally had laying around an older costs2023.csv file, that was not updated because I had --touched it. It runs smoothly with the the current technology-data version 👍

lisazeyen · 2024-06-04T08:52:48Z

@LukasFrankenQ great! Nice to have this in the master!

LukasFrankenQ · 2024-06-04T11:34:32Z

Thank you! :)

LukasFrankenQ and others added 20 commits September 4, 2023 19:26

added basic egs potential script

ee9c3c0

pre-testrun version added to prepare_sector_network

e6203f5

added new params to default config, and fixes

77b72dc

cleanup and renaming

d7afa66

changed default config to pessimism on egs

e486d6b

[pre-commit.ci] auto fixes from pre-commit.com hooks

0e80244

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added minor cleanup correcting local adjustment

489cbcd

Merge branch 'master' of https://github.com/LukasFrankenQ/pypsa-eur

10dccd0

[pre-commit.ci] auto fixes from pre-commit.com hooks

de605e2

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changed config name to egs_performant, added saturation check

a7376f5

[pre-commit.ci] auto fixes from pre-commit.com hooks

5502568

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cleanup of saturation check

e98430e

Merge branch 'master' of https://github.com/LukasFrankenQ/pypsa-eur

a8a5236

[pre-commit.ci] auto fixes from pre-commit.com hooks

d2624f8

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added source for FOM

b3ce30e

Merge branch 'master' of https://github.com/LukasFrankenQ/pypsa-eur

4734618

[pre-commit.ci] auto fixes from pre-commit.com hooks

45e5ab1

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changed overlap indexing, general cleanup

9a5c010

Merge branch 'master' of https://github.com/LukasFrankenQ/pypsa-eur

8dd5161

added release notes

fa0811d

LukasFrankenQ and others added 8 commits November 9, 2023 22:28

Merge https://github.com/pypsa/pypsa-eur

11ecbf3

added option for hourly egs capacity factors

6cd46bf

[pre-commit.ci] auto fixes from pre-commit.com hooks

ff209bb

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towards adding district heating, included spatial

24c3d28

Merge branch 'master' of https://github.com/LukasFrankenQ/pypsa-eur

d1243da

[pre-commit.ci] auto fixes from pre-commit.com hooks

a8dde15

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added chp operation to geothermal

468177c

merged

52c6ce9

LukasFrankenQ added 2 commits March 14, 2024 12:03

Merged https://github.com/pypsa/pypsa-eur

09765ad

included Lisas PR suggestions

97acf2f

LukasFrankenQ added 2 commits March 26, 2024 23:54

changed implementation to always use 2020 cost

46cd9a8

removed geothermal chp constraint

9abe1a1

LukasFrankenQ added 2 commits March 27, 2024 00:09

Merge https://github.com/pypsa/pypsa-eur

0396828

moved docs from config file to docs

08ccd4d

fneum added this to the v0.12.0 milestone May 23, 2024

LukasFrankenQ added 4 commits May 26, 2024 22:38

Merge https://github.com/pypsa/pypsa-eur

2801b00

final corrections, improved docs

2f1d6d2

Merge https://github.com/pypst push

732670a

a/pypsa-eur

improved docs on EGS cost scaling

4752840

LukasFrankenQ requested a review from lisazeyen May 31, 2024 23:42

LukasFrankenQ added 4 commits June 1, 2024 11:13

added release note on EGS

4819b90

changed EGS paper link to doi-containing version

b0d7a45

added egs costs file

7a62574

adjusted and added colours for EGS

7eba0ba

lisazeyen merged commit c519f4c into PyPSA:master Jun 4, 2024

fneum mentioned this pull request Aug 3, 2024

Include deep geothermal potentials for district heating and electricity #541

Closed

Eric-Nitschke mentioned this pull request Jul 9, 2025

Missing investment cost data for geothermal technology PyPSA/technology-data#146

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Adds enhanced geothermal systems (EGS) for electricity generation and combined heat and power.

Checklist

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