There's an issue when the CO2 cap is set to 2, but the file "generator_data.csv" does not have storage.

[fc4uk]

There is a bug related to the CO2 cap being set to 2 when there's no storage in the system. This issue can be reproduced in the smallnewengland/onezone directory by removing the "battery" row from generator_data.csv. Below is the error message I encountered:

ERROR: LoadError: KeyError: key :eELOSSByZone not found

[cfe316]

This could be solved using a line near the top of generate_model.jl

create_empty_expression!(EP, :eELOSSByZone, Z)

and then changing the line that constructs the entries for this in storage_all.jl (and vre_stor.jl) to use add_to_expression!.

[cfe316]

This is now fixed on develop.