Veda2.0 Released!


pumped hydro modeling
#1
Hi all,

I have a question on the way I am modeling pumped hydro. 
My pumped hydro has the following specs: 
  • Storage efficiency: 80%. I am reflecting this as STG_EFF and FLO_FUNC(ELC, AuxStoOUT, ANNUAL) =1/0.8=1.25

  • 6hours of capacity for day night operation. This translates to: AFAC(ELC)= 6/24=0.25, NCAP_AFC(ACT, DAYNITE)=6/24/0.8=0.31

  • 9hours to full charge. This translates to AFC(NRG, DAYNITE)=6/9=0.67


Attached is an items detail view of my process. 

The issue that the model never relies on existing pumped hydro even when it decides to invest in new storage devices.
Am I missing something in my modeling?

Thank you,
Mahmoud


Attached Files Thumbnail(s)
   
Reply
#2
Well, I could not see anything too suspicious, apart from a missing PRC_CAPACT, shouldn't that be 31.536?  However, I cannot see what the purpose of the AuxStoIn and AuxStoOut flows is, and how are these commodities defined in FI_Comm.  Are they free dummy flows?

You could try putting a FLO_BND(r,y,p,AuxStoIn,ANNUAL,LO)=1 and see what happens...
[+] 2 users Like Antti-L's post
Reply
#3
Thank you for your reply Antti. Indeed, It turned out to be related to me not specifying CAPACT for the process. Specifying CAPACT solves the issue...
I am using AuxStoIn and AuxStoOut for some downstream reporting...

Many thanks for your time and investigation and sorry for the silly post on my end.
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  Value Added Modeling JozefO 2 477 14-02-2024, 06:39 PM
Last Post: JozefO
  Problems with modeling a retrofit option Ceas19 2 1,460 28-06-2022, 09:49 PM
Last Post: Ceas19
  Storage Processes Modeling: Pumped Hydro DOlih 2 2,415 28-08-2021, 10:21 PM
Last Post: DOlih
  A question about modeling SQT2000103058 6 5,694 28-04-2021, 08:39 PM
Last Post: SQT2000103058
  Modeling upper bound for cummulative emissions qzaus 3 2,779 09-04-2021, 09:45 PM
Last Post: Antti-L
  Modeling New Vehicle Technologies eorear86 2 2,451 23-03-2021, 10:20 PM
Last Post: Pernille.S
  Modeling investments and mandates qzaus 14 11,433 19-03-2021, 02:29 AM
Last Post: qzaus

Forum Jump:


Users browsing this thread: 1 Guest(s)