COM_BNDNET for CO2 capture and storage

[Kristina.Haaskjold]

Hi, 

We are using COM_BNDNET to force investments in CO2 transport and storage if the model chooses to capture the CO2. However, it doesn't seem to work as intended, as results show usage of the capture technology but no transport or storage. We have tried defining the processes and commodities both on daynite level and annual level, and results vary largely. We want the constraint to be binding on daynite level, but don't understand why the COM_BNDNET constraint is not binding. 

We have enforced COM_BNDNET = 0 on both CO2-cap commodity and CO2-tra commodity. Attached are screenshots showing the flowchart and the definition of COM_BNDNET. We have defined all CO2 processes and commodities as DAYNITE. 

Appreciate all suggestions.

[Antti-L]

COM_BNDNET defines a bound on the commodity NET variable. A zero bound would force that variable to a zero level. In my tests I am seeing it working as designed. Therefore, if you say it is not working as designed, providing a reproducible case would be highly useful.

[Antti-L]

Ok, I see now your problem. You are using DAYNITE as the timeslice for COM_BNDNET.  But there is no such timeslice, and therefore you will get domain violations, and the parameters thus have no effect (they are filtered out).  You can see the domain violations in the listing file, and there is a warning in the QA_Check.log as well.

Please just put ANNUAL under the Timeslice column, and it should work. It will define the zero bounds for all timeslices.

[Kristina.Haaskjold]

Thanks for clarifying this! The COM_BNDNET works as intended now with the ANNUAL definition.