30-05-2019, 03:47 PM
(This post was last modified: 30-05-2019, 03:53 PM by MohammedAbiAfthab.

*Edit Reason: to add more*)
Hello,

I have a few doubts related to defining storage in TIMES.

1) I have my investment cost in terms of the maximum storage volume possible. Therefore, I need to represent my capacity as the amount of storable energy. As per the TIMES documentation, capacity can be represented in three ways; output flow is the basis for capacity (NCAP_AFC(o)=1), input flow is the basis for capacity (NCAP_AFC(i)=1) or the basis is the amount stored. I believe my case is the final one. Does this mean I do not have to define any NCAP_AFC to make my capacity represent the amount of storable energy? I did this way and I am getting strange results. My capacity is very small but my Var_Fin, Var_Fout and Var_Act are all larger than my capacity. Is this possible?

2) In another case, my investment cost is in terms of Euro/PJa. I defined NCAP_AFC=1 and I am getting the capacity in terms of the output flow in a year (equal to my Var_Fout; my efficiency is 1). This is what I wanted. But in TIMES advanced documentation I saw an example where it is defining the NCAP_AFC=0.33. In that case in the results, capacity is in terms of GW but not in energy units (Var_FOut is energy units and not equal to Var_Cap). Why there is a difference between this case and my case?

3) When it says NCAP_AFC(o), how do I put it in the VEDA excel sheet. Is it like I add one column next to NCAP_AFC column with attribute CommGrp and input as my output commodity. If this is a Veda question, please let me know, I will post in VEDA Forum.

4) Also, my input and output commodities are different ( I am doing this to enforce the commodity flow only through storage and commodity cannot bypass the storage). To enable this I have defined my PCG as the output commodity which is mentioned in the TIMES documentation. Is this a right approach?

5) Var_Act is the amount of energy being stored as I understood from the documentation. That means if we take two consecutive time slices T1 and T2, Var_Act (T1)+Var_FIn(T1)-Var_FOut(T1)= Var_Act (T2), this will be satisfied always, right?

Thanks & Regards

Abi Afthab

I have a few doubts related to defining storage in TIMES.

1) I have my investment cost in terms of the maximum storage volume possible. Therefore, I need to represent my capacity as the amount of storable energy. As per the TIMES documentation, capacity can be represented in three ways; output flow is the basis for capacity (NCAP_AFC(o)=1), input flow is the basis for capacity (NCAP_AFC(i)=1) or the basis is the amount stored. I believe my case is the final one. Does this mean I do not have to define any NCAP_AFC to make my capacity represent the amount of storable energy? I did this way and I am getting strange results. My capacity is very small but my Var_Fin, Var_Fout and Var_Act are all larger than my capacity. Is this possible?

2) In another case, my investment cost is in terms of Euro/PJa. I defined NCAP_AFC=1 and I am getting the capacity in terms of the output flow in a year (equal to my Var_Fout; my efficiency is 1). This is what I wanted. But in TIMES advanced documentation I saw an example where it is defining the NCAP_AFC=0.33. In that case in the results, capacity is in terms of GW but not in energy units (Var_FOut is energy units and not equal to Var_Cap). Why there is a difference between this case and my case?

3) When it says NCAP_AFC(o), how do I put it in the VEDA excel sheet. Is it like I add one column next to NCAP_AFC column with attribute CommGrp and input as my output commodity. If this is a Veda question, please let me know, I will post in VEDA Forum.

4) Also, my input and output commodities are different ( I am doing this to enforce the commodity flow only through storage and commodity cannot bypass the storage). To enable this I have defined my PCG as the output commodity which is mentioned in the TIMES documentation. Is this a right approach?

5) Var_Act is the amount of energy being stored as I understood from the documentation. That means if we take two consecutive time slices T1 and T2, Var_Act (T1)+Var_FIn(T1)-Var_FOut(T1)= Var_Act (T2), this will be satisfied always, right?

Thanks & Regards

Abi Afthab