interpolation setting for NCAP_AF

[Anjali]

Hello...
I am using dayNite timeslices in my model and I want to define the availability factor for power plants. I am using NCAP_AF to define it. Also, I am giving its interpolation as 2. But for some timeslices, it is crossing its availability limit. E.g. Capacity of a nuclear power plant is 986 MW, and its availability is 0.8. But for some timeslices, it is generating 793 MW. Can anybody help me to sort out the problem. And what other settings I need to change.

Thanks

[Antti-L]

I am not able to reproduce your problem.

I tested with the DEMO model, introducing a new nuclear plant 'Anjali', and setting the capacity to 0.986 GW, and the availability factor to 0.8 with an interpolation option 2, as you suggested:

NCAP_PASTI('WEU','2000','Anjali') =0.986;               (existing capacity in GW)
PRC_CAPACT('WEU','Anjali') = 31.536;                    (unit conversion from GW to PJ)
NCAP_AF('WEU','2000','Anjali','ANNUAL','UP') = 0.8;     (max. availability factors for all timeslices)
NCAP_AF('WEU','0','Anjali','ANNUAL','UP') = 2;          (interpolation option as suggested by Anjali)
NCAP_BND('WEU','0','Anjali','UP') = 2;                  (prevent investments into new capacity)

In the results, it is generating 788.8 MW in all timeslices (i.e. exactly at the max. availability 0.8), which is understandable, because I did not define any operating costs for it, and so it is generating as much as possible.

[Anjali]

Hi dear...
Actually I am using DayNite Time slice. And I can give you more information regarding my model as I need help in unit commitment also. Can u plz provide me ur mail id, if possible.

[AKanudia]

Post an image that shows all the attributes you have declared for this process. Partha can help you with this.