Rewriting of EULP raw data

[trevorb1]

Checklist

• [X] I am using the current master branch
• [X] I am running on an up-to-date pypsa-usa environment. Update via conda env update -f envs/environment.yaml

The Issue

The first time I run a study using EULPs, the data should be (and is) saved to the data folder. That way once a second study using this data is used, EULP do not have to get written out again.

When I run a second study using EULP, the retrieve_eulp rules are still being run. Probably just an input file mistake.

Steps To Reproduce

1. Run sector coupled workflow with eulp for res/com
2. Clean results
3. Run workflow again

Expected Behavior

retrieve_eulp rules shoud not be run again.

Error Message

na

Anything else?

No response