message_ix
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The integrated assessment and energy systems model MESSAGEix
Some settings in the MESSAGE GAMS implementation are controlled through global %-macros, e.g. `%SLACK_CAP_NEW_BOUND_UP%`: https://github.com/iiasa/message_ix/blob/51ccdfb631e815bc4142df45650f908900c9dbf6/message_ix/model/MESSAGE/model_core.gms#L1179-L1182 This macro is set, and can *only* be modified, through one of: https://github.com/iiasa/message_ix/blob/51ccdfb631e815bc4142df45650f908900c9dbf6/message_ix/model/MESSAGE/model_setup.gms#L40 https://github.com/iiasa/message_ix/blob/51ccdfb631e815bc4142df45650f908900c9dbf6/message_ix/model/MESSAGE_master.gms#L81 …the...
This PR resolves issues identified in #624. ## How to review Please review all the tutorials and changes made. Check that the tutorials work and that the corresponding descriptions match....
Recent changes to the Westeros baseline scenario have resulted in inconsistencies with scenarios building off of the baseline: - westeros baseline: - [x] See also issue #609 -> when completed,...
#### Problem description The `technical_lifetime` lifetime parameter for historical vintages of the power plant (and bulb) technologies is not defined. Usually, this issue does not cause a problem with running...
This PR adds a new section to the documentation providing new users with possibilities of how to start to work with a new model. Closes #464 ## How to review...
This PR cleans up and supersedes #387. ## PR checklist - [ ] Continuous integration checks all ✅ - [x] Add or expand tests; coverage checks both ✅ - [x]...
In `message_ix\model\MESSAGE\data_load.gms`, there are two equations (see the links below) related to the assignment of `capacity_factor`: 1. The first equation assigns `capacity_factor = 1` to the missing entries for `capacity_factor`...
Details on the implementation of MACRO, its parameterization and the calibration procedure can be found in the [Annex](https://docs.messageix.org/projects/global/en/v2017/annex/macro.html). This information is going to be removed from the 2020 release of...
I find the documentation on the core math formulation is not quite standalone by itself and ends up being quite confusing to external users. It requires filling in or fixing...
In #223, there was a discussion (https://github.com/iiasa/message_ix/pull/223#discussion_r312356449) of how Scenario.add_macro should behave when the target Scenario already contains MACRO-related items or data; i.e. should it: - refuse to proceed and...