training exercises - Tellus Institute

5.2 Current Accounts Data
You are now ready to enter the following base year (Current Accounts)
data for your analysis.
• There were 6 million cars and 4 million SUVs on the road in the
base year (2000), not including new cars sold in that year.
• The existing stock of cars and SUVs is made up of vehicles of
different ages (vintages). The percent share of each of these
vintages is given in the table on the right.
Tip: Create a new lifecycle profile named “Existing Car
Stocks” to represent the distribution of vintages within the
base year stock. The Lifecycle Profiles screen is accessed
under the General menu. First add a profile then enter the
data shown on the right. The figure below shows how this
information will look when entered into the lifecycle profile
screen. Back in Analysis View, go to the Stock tab for each
technology branch and in the final Stock Vintage Profile
column, select the Existing Car Stocks profile.
Important: Note that LEAP requires that all stock vintage
profiles have zero vehicles of age zero years. This is because
the data you enter for base year stocks should not include those new vehicles sold
in the base year. These vehicles are specified using the sales variable.
Age
(Years)
% of Stock
0 0.00
1 11.26
2 11.04
3 10.60
4 9.99
5 9.22
6 8.34
7 7.40
8 6.43
9 5.48
10 4.58
11 3.75
12 3.01
13 2.37
14 1.82
15 1.38
16 1.02
17 0.74
18 0.53
19 0.37
20 0.25
21 0.17
22 0.27
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