Stock cost

[saleh]

Hi,

I defined investment cost for my base year technologies; so I dont have any Var_NCap in the base year, but I have Var_cap which is equal to my stock numbers. On the other hand, I have VAR_Inv for my base year technologies which is equal to (Base year tech investment cost*Stock*CRF). So I assume the model calculate the cost of my stock technologies in the base year. Would you please verify that this is a correct behavior of my model and TIMES has this feature? Thank you.

Saleh

[Antti-L]

TIMES does generate the reporting parameter Cost_Inv (Annual investment costs) for VEDA-BE, which includes annualized investment cost payments also for any past investments (specified by NCAP_PASTI) and residual capacities (specified by PRC_RESID), in the Milestone years when they are still available in the model.  That is indeed intentional and expected behaviour of TIMES.

However, VAR_Inv is the macroeconomic investment variable in the MACRO extension of TIMES, and it is not directly related to energy technology investments. It represents the total investments in the economy.

[saleh]

Thanks Antti,

I apologize it was my mistake, I meant Cost_Inv not VAR_Inv. I do not have VAR_NCap, but there is a VAR_Cap which is equal to available stock in the base year. However, my Cost_Inv for the base year is equal to cost of stock in the base year. In the related equation for Cost_Inv we have VAR_NCap and NCAP_PASTI. So, I want to know that if the model in the base year assumes stock is available technology (VAR_NCap is zero while VAR_Cap is equal to stock) and calculate the cost of that? (I see this behavior, is it a correct behavior of a model?)

[Antti-L]

I assume that by "Stock" you mean the PRC_RESID parameter?  If so, yes, the model will assume that the amount of capacity specified by PRC_RESID is available in the Base year, and TIMES will report annual investment cost payments for the capacity, if you have specified NCAP_COST for it.

If you don't want to see those costs in the report, you can untick the corresponding vintage in VEDA-BE. The vintage associated with PRC_RESID is B(T1)-1. You could also simply refrain from specifying investment costs for the PRC_RESID capacity in the first place, if you don't want to see any payback costs for it.

[saleh]

Yes Antti, the stock turns into PRC_RESID and therefore the model calculates COST_Inv based on that. Thank you.