error related to gen_build_predetermined

[Xi Xi]

When I'm trying to solve the model, I get this message:

ERROR: Constructing component 'BuildGen_assign_default_value' from data=None
    failed:
        KeyError: "Index '('Hydro_L', 1981)' is not valid for indexed
        component 'BuildGen'"

I can't figure out what the problem would be...this is the first line of gen_build_predetermined.csv and if I clear the file, the model solves. I'm sure the GENERATION_PROJECT columns match that of gen_info. I checked the data types as well - if I import the csv file with pandas dataframe, the datatypes are object, integer, and float. What am I missing here?

[Xi Xi]

Here is a screenshot of the error message.

[Matthias Fripp]

Dear Xi Xi,

 

Sorry for the delay in getting back to you! Is this happening with the “East_China_small” from the “Small” tutorial at https://switch-model.org/china_tutorial/index.html? Have you made any changes to the model data?

 

This error means that the BuildGen_assign_default_value component is trying to assign a value for BuildGen['Hydro_L', 1981] but that index is not valid for this variable. Looking for “BuildGen_assign_default_value” in the source code brings up switch_model/generators/core/build.py. There, we can see that BuildGen_assign_default_value gets its indexes from PREDETERMINED_GEN_BLD_YRS but BuildGen is indexed over GEN_BLD_YRS. So it sounds like there is an inconsistency between these sets.

 

PREDETERMINED_GEN_BLD_YRS comes from the gen_build_predetermined.csv file - it is combinations of (generator, year) when existing or planned capacity are added. GEN_BLD_YRS comes from gen_build_costs.csv - it is the (generator, year) combinations for which costs have been defined.

 

So most likely there is a line in your gen_build_predetermined.csv for ('Hydro_L', 1981), but not a cost for that generator and year in gen_build_costs.csv. (This is an easy mistake to make, and I will try to add a better error message in the next version of Switch.)

 

If you add a row with a cost for ('Hydro_L', 1981) in gen_build_costs.csv, that should fix the problem.

 

Matthias

 

From: 'Xi Xi' via Switch Model <switch...@googlegroups.com>
Date: Tuesday, April 23, 2024 at 6:59 PM
To: Switch Model <switch...@googlegroups.com>
Subject: [EXTERNAL] [switch-model] Re: error related to gen_build_predetermined

Here is a screenshot of the error message.

 

On Tuesday, April 23, 2024 at 6:53:52 PM UTC-7 Xi Xi wrote:

When I'm trying to solve the model, I get this message:

ERROR: Constructing component 'BuildGen_assign_default_value' from data=None
    failed:
        KeyError: "Index '('Hydro_L', 1981)' is not valid for indexed
        component 'BuildGen'"

 

I can't figure out what the problem would be...this is the first line of gen_build_predetermined.csv and if I clear the file, the model solves. I'm sure the GENERATION_PROJECT columns match that of gen_info. I checked the data types as well - if I import the csv file with pandas dataframe, the datatypes are object, integer, and float. What am I missing here?

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