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Liya Cai 7/5/2011
3237 Views Dear Tory,
When I edited the efficient refrigerator scenario,I found the AnnualGrowth founction cound not work.How can I express "Specify a cost of zero for the existing refrigerator and then annulize the $100 incremental cost over the 10 years life time of the efficient refrigerator"? Or whether should I achieve it use AnnualCost founction.
Additionaly, how can I specify the efficient refrigerator starting year 2004?
Many thanks
Serena
Tory Clark 7/5/2011
3235 Views Hi Serena,
I recommend using the AnnualizedCost function, which is described in the previous section 4.3.1. Because you are comparing scenarios, you only need to specify incremental costs. This means that you can set a value of zero for the existing technology and set the AnnualizedCost function for the efficiency technology.
You can specify that efficient refrigerators start in year 2004 by using an interp function, like the one below.
Interp(2014,0,2025,100)
The above function shows that efficient refrigerators do not enter the market until 2014 and then over the span of 11 years fully replace existing refrigerators.
Best,
Tory
PS It seems like you are using the old version of the training materials. We have recently updated them for LEAP 2011. You can find these at www.tinyurl.com/LEAPTrainingMaterials
Liya Cai 7/5/2011
3229 Views Dear Tory,
What are the meanings of Existing and Efficient under some devices? Does efficient mean new senario?
Need I create new modul such as Efficient refrigerator and Efficient Lighting when I simulate Efficient refrigerator senario and Efficient Lighting senario?
Where can I input interp(2014,0,2025,100) and interp(2014,0,2025,380)in Final energy intensity and Demand cost tabs? If so,AnnualCost founction is unuseful here.
By the way,the new training edition can not be edited,which is not convenient for learning.
Many thanks to you
Serena
Liya Cai 7/6/2011
3223 Views Hi Tory,
In demand->lighting branch, current account,AnnualizedCost(30, 6,-99,1)and AnnualizedCost(5, 1,-99,0),how can explain
-99? Is InterestRate -99?
Serena
Tory Clark 7/6/2011
3221 Views Hi Serena,
1. The existing and efficient branches refer to the different technologies that are available across all scenarios. In the current accounts scenario you must create the tree structure that will be used in all scenarios. In this case, two different technologies are evaluated at most branches: an existing technology and a more efficient technology. Different branches are required for each because they have different parameters (costs, efficiencies, etc.). This allows you to then change the activity level to match the different scenario you want to evaluate.
2. You do not need to create separate scenarios for each policy measure, but the completed datasets online do separate them out si that it is easier to see the reductions from each measure. The alternative is to create one comprehensive mitigation scenario that includes all measures.
Remember that the training exercises only show you one way to set up a LEAP model. There are always other methods and approaches.
3. Be careful that you understand which data maps to which variable. The data that defines the penetration of refrigerators - interp(2014,0,2025,100) should go in the activity level variable as a share.
The efficiency of the refrigerator should go in the final energy intensity variable, but this is a constant, not a function (the text says that new efficient refrigerators will have an average intensity of 380 kWh/yr).
And the cost should be entered as an annualized cost on the demand cost tab ata cost of $100 annualized over 10 years. If you're unsure about a function, you can always read the help file associated with it.
4. The -99 value that you are referring to in the annualized cost function is an old method from an outdated version of LEAP. Please download the newer Freedonia datasets associated with the new training materials for more correct results.
Best,
Tory
Liya Cai 7/6/2011
3217 Views Hi Tory,
When I entered BaselineValue*Interp(2010,1,2040,0.7) after selecting the Final Energy Intensity variable (specified at the Other Industry branch),but it came out error,said "Baseline founction can only be used in non-basic scenario".
In Efficient Refrigerator scenario,I selected demand cost tab,and enterd AnnulizedCost(100,10).Is it right?
Serena
Tory Clark 7/6/2011
3214 Views Hi Serena,
This error message makes sense. You can only reference the baseline value in a mitigation scenario. If you try to reference the baseline value within the baseline scenario you will get that message.
Yes, this is correct. Remember that you can check your answers against the results datasets found on the training materials page.
Tory
Liya Cai 7/11/2011
3203 Views Dear Tory,
I got the error message again when I entered BaselineValue*Interp(2010,1,2040,0.7) after selecting the Final Energy Intensity variable (specified at the Other Industry branch) as well as I went to the Fuel Economy tab for each appropriate vehicle type and entered the expression BaselineValue*Key\Target Economy for the Improved Fuel Economy scenario. The message is like this "Baseline founction can only be used in non-basic scenario". But I did not in the basic scenario. I did the exercises according to the instruction. Could you tell me what I should do.
Best wishes
Serena
Tory Clark 7/11/2011
3200 Views Hi Serena,
When asking a question about the training materials, can you please tell me which exercise you are working on, what page that is in the training materials and whether you are working in LEAP 2011 or LEAP 2008?
This will help me be able to better answer your question.
Best,
Tory
Liya Cai 7/11/2011
3198 Views Hi Tory,
This is on page 50 in exercise4.3.3 and page 62 in exercise5.7.1. I use the LEAP2011.
Bset
Serena