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Why a deferral case asks for site load and deferral load?

Freddy G
Thu, 20 May 2021 21:46:30 GMT

just trying to defer an upgrade of a small residential transformer. I got the load profile of the transformer and when I run the tool it display an error with no explanation. Please advise.

Miles Evans
Mon, 24 May 2021 22:21:00 GMT

Hi Freddy - Are you using the first full release of DER-VET? That's the first thing to check.

Miles Evans
Mon, 24 May 2021 22:24:23 GMT

This is the version you can currently download from the website https://www.der-vet.com/software/#DER-VET%20Version%201.0 or from github https://github.com/epri-dev/DER-VET

Freddy G
Thu, 27 May 2021 21:53:17 GMT

Hi Miles, I am using the latest version DER-VETâ„¢ Version 1.0 from the first link you have provided. Thanks!

Miles Evans
Fri, 28 May 2021 15:40:04 GMT

That is odd. Deferral cases are working fine for me. Are there any errors in red on the summary page before you run? It is possible your case is infeasible. You should also make sure your DERs are capable of supporting the power flow limits you impose on the deferral inputs screen: [Deferral_debugging](//muut.com/u/der-vet/s3/:der-vet:BMoq:deferral_debugging.png.jpg)

Freddy G
Wed, 02 Jun 2021 21:44:08 GMT

Hi Miles, I have uninstalled/installed the tool and got the same error. I opened the project.json file and change true to false to not include site load. Now the tool does not ask for site load, but still getting this eroor [To not include site load](//muut.com/u/der-vet/s1/:der-vet:AZMu:tonotincludesiteload.png.jpg) [Error message](//muut.com/u/der-vet/s1/:der-vet:vJiP:errormessage.png.jpg)

Freddy G
Wed, 02 Jun 2021 21:46:08 GMT

this is what I have entered for deferral [Deferral Input](//muut.com/u/der-vet/s1/:der-vet:iu5Z:deferralinput.png.jpg)

Freddy G
Wed, 02 Jun 2021 21:46:53 GMT

So, not sure why is not doing it. Thanks

Freddy G
Wed, 02 Jun 2021 21:49:58 GMT

I do not have any red errors before running DER-VET. Also, I run the same case in StorageVET and it worked. Thanks

Miles Evans
Wed, 02 Jun 2021 22:34:44 GMT

And do your DER sizes allow for reducing the net load (Deferral Load + Site Load - DER Power) to at most 37 kW at all times?

Freddy G
Wed, 02 Jun 2021 22:43:04 GMT

I am considering only a battery and the load profile of the transformer. Now I have added the day ahead price and actually the tool sized the battery for the 10-Y I need (from the dervet log file). Then I entered the size of the battery I got and I am doing a second run of the tool, it is still running...

Freddy G
Wed, 02 Jun 2021 22:50:24 GMT

[Dervet log](//muut.com/u/der-vet/s1/:der-vet:CGcX:dervetlog.png.jpg) , but DER-VET still running without end...

Freddy G
Fri, 04 Jun 2021 14:18:46 GMT

at the end it did not produced the results. Could I send you the project files for your review? Thanks

Miles Evans
Mon, 07 Jun 2021 17:41:34 GMT

Yes, please do send your project files.

Freddy G
Tue, 15 Jun 2021 14:16:38 GMT

Hi Miles, I sent you the files already to your email. Thanks!