Availability about Space heating tech

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Hi!

If I have already divided the heating demand based on seasonal characteristics, is it still necessary to specify the availability in each timeslice using AF for heating technologies? Currently, I am using AFA to indicate the annual availability, but I want to confirm if this approach is appropriate or feasible.

Best,
Xiao

[Antti-L]

It depends how you model the technologies.  If they operate on the DAYNITE level, you would need to ensure they operate according to an appropriate load profile, and so you would probably need DAYNITE level AFs.  However, if they operate on the ANNUAL level, you can automatically impose the correct load profile by specifying the load profile for the output commodity(ies). I usually prefer to use the latter imposed load profile approach.

[[email protected]]

It depends how you model the technologies.  If they operate on the DAYNITE level, you would need to ensure they operate according to an appropriate load profile, and so you would probably need DAYNITE level AFs.  However, if they operate on the ANNUAL level, you can automatically impose the correct load profile by specifying the load profile for the output commodity(ies). I usually prefer to use the latter imposed load profile approach.

Hi Antti,

Thank you for the reply. So if I define a AFA for a process with daynite level, it means same available factor (same as the AFA) at every timeslice, am I understanding right?

Best,
Xiao

[Antti-L]

No, no. NCAP_AFA defines an ANNUAL utilization factor, so it is on the ANNUAL level only. We have discussed that all earlier, you may have forgotten?

[[email protected]]

No, no.  NCAP_AFA defines an ANNUAL utilization factor, so it is on the ANNUAL level only.

Hi Antti,


I will take an example about EU-TIMES here (because I learned the TIMES most by EU-TIMES), the EEPP_geothermal is with daynite level but an AFA is imposed.

Best,
Xiao

[Antti-L]

Yes.  It is perfectly fine to define an annual utilization factor for any process, regardless of the process tslvl.

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Hi Antti!

Thank you for the reply! Also, is it necessary to define the EFF for any heating/electricity storage technology? (the S_EFF has already been imposed)

Best,
Xiao

[Antti-L]

I am not sure what VEDA does for EFF specified for storage, please ask the VEDA support staff or check how it shows up in the Browser.  But concerning TIMES, see the documentation, Part II, Table 22: Limitations of using standard process parameters for storage processes.