I looked at demand elasticity scenario defined in Demo/SuppXLS folder. What are the 2 parameters, COM_VOC (MED variation of demand) and COM_step (number of demand growth) in TFM_INS table? I saw their definition in attribute table, but can you explain more about them?
COM_VOC is the possible variation of demand in both directions when using the elastic demand formulation. In your example, demand can change up to 15% in both directions (higher/lower demand). After that, the demand is assumed to be inelastic again.
COM_STEP is the number of steps to use for the approximation of change of producer/consumer surplus when using the elastic demand formulation. 10 steps is fine for a 15% change but if you to higher changes (for example 50%) than you need at least 20 steps.
More information on the documentation document http://www.iea-etsap.org/docs/TIMESDoc-Details.pdf
Wouter
Thanks for you response. I studied both part 1 and 2 of TIMES documentation. It was really helpful, but i have another question from that table. 15% is a demand range w.r.t. the reference case demand in 2001 and 5 is the number of steps for discretizing the demand curve. What is 5 and year 0?
I made an elasticity demand scenario with
the same attributes as Demo, but when i ran the model, the result was the same as base case. I wonder if I need to change any settings on VEDA_FE to run the model for elastic demand?
Thanks Mauri for your response. I have a lot of constraint scenarios, but not on CO2 tax or emissions. I do have constraint on NOx and SO2 emissions. What do you mean exactly with ref scenario? can I include NOx and SO2 emissions constraint scenarios in the base case run?
The elasticity run is based on demand prices generated in a first run (that I called Reference). if you look at the document uploaded from Antti sometimes ago I am sure you will understand the mechanism. BTW it is important to generate a different demand price between the run without and with elasticity and generally you can do this in a easy way with emission taxes or bounds.