Author: Amit Kanudia Download Posted: Apr 02, 2009
This model demonstrates the use of lumpy investments feature of the TIMES model under VEDA environment.
FIGURE 1: RES OF VEDALIB_DSCINV MODEL
The green process is the one that is forced to have lumpy investments. It is defined in the SubRES Discrete-Investments, and an absolute lower bound is introduced via the SubRES transformation file.
FIGURE 2: DEFINITION OF THE DISCRETE INVESTMENT PROCESS (SUBRES FILE)
FIGURE 3: ABSOLUTE LOWER BOUND ON ACTIVITY (SUBRES TRANSFORMATION FILE)
FIGURE 4: ACTIVATE "DISCRETE INV" UNDER MODEL VARIANTS ON THE SOLVE SCREEN
The DSC-BASE case is run without the SubRES, and the DSC-Dsc scenario includes the SubRES.
FIGURE 5: INVESTMENT RESULTS WITH AND WITHOUT THE LUMPY INVESTMENTS
We can see lumpy investments in process ELCPlant-DiscInv in periods 2005 and 2015, whereas the total investment in each period remains constant across the two cases.