Topic: Carbon tax scenariosSubscribe | Previous | Next
Lyheang Chhay 1/21/2019
Hello everyone,
I am using LEAP model in order to find the CO2 emission from power sector in Thailand. Thus, i need to include carbon tax scenarios into my study. Can i use LEAP model in order to input carbon tax ( $20/tCO2, $100/tCO2) into LEAP model?
Best regard,
Emily Ghosh 1/23/2019
Hi Lyheang,
Yes, this is possible. Under the "Effects" branch (found between Key Assumptions and Demand), add a new effect branch (i.e. Carbon Dioxide), and then input the cost/carbon tax under the "Externality Cost" tab.
Thanks,
Emily
Lyheang Chhay 1/25/2019
Thank deeply for your reply. In my case i can not find the effect that you mentioned. Are there any solution ?
Photo below is the capture of my model.
Thanks
Lyheang
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Emily Ghosh 1/25/2019
Hi Lyheang,
My apologies, I assumed that you already added Effects to your model. Before you apply an externality cost, you should first assign emission factors (also called environmental loadings) to each Feedstock Fuel branch under each power plant process. To enable this feature (and the Effects branch), please follow the instructions in the following thread: https://www.energycommunity.org/default.asp?action=9&tid=3972&fid=22
I also recommend reading the following help page for more information on how LEAP calculates emissions: https://www.energycommunity.org/Help/Demand/Environmental_Analysis.htm
After you add the emissions factors, follow the instructions I posted above to apply an externality cost.
Thanks!
Emily
Lyheang Chhay 1/26/2019
Hello Emily,
I understand the points you mentioned above. By the way, when i inputed carbon tax into my model, there is no changing in CO2 emission from fuel. In case that i want the carbon tax affect to CO2 emission from fuel, are there any solutions with this?
Thanks
Lyheang
Taylor Binnington 2/12/2019
Hi Lyheang -
Just want to add to Emily's instructions. Including an externality cost in your model will add an assessment of the social cost of a pollutant within a cost-benefit summary for your model. But this does not automatically affect the demand for fuels, or how energy is transformed to meet fuel requirements.
If you wish to include a carbon tax (or any other policy) in LEAP, you must decide for yourself how that tax will affect model variables. LEAP is an accounting tool, and does not automatically locate a partial equililbirum for your energy system given a change in the price of fuels (or an externality cost). In other words, if the demand for a fuel (through the Activity Level, or Final Energy Intensity, to use two examples of LEAP variables) is a function of the carbon price, then it is up to you to write that function into a relevant LEAP variable using an expression.
Hope this helps,
Taylor
Lyheang Chhay 2/12/2019