PyPSA / PyPSA/PyPSA

Merging models with the same elements

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model-building
Dominant language
Python
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Avg merge
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Merged PRs (30d)
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Description

Describe the feature you'd like to see

https://docs.pypsa.org/v0.35.1/api/_source/pypsa.Network.merge.html

The current merge function requires component lists to be disjunct, however I believe a significant number of cases to require merging of networks where the component list might overlap. It would be helpful to have an argument that implements merge logic that ignores identical elements (e.g. typical with carriers)

This logic may have strict standards for combining elements (only when all parameters are equal) or we could allow one network to have "priority" where the parameters of elements with the same name are made equal to the parameters in n1 (the "priority" network)

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the Network.merge API documentation at docs.pypsa.org/v0.35.1/api/_source/pypsa.Network.merge.html and inspect the current merge behavior. Before implementation, clarify whether identical overlapping elements only should be accepted or whether a priority network is intended; done means the chosen behavior is documented and covered by tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend-api-design
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
42/100

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