1. Problem recognition, definition and
evaluation
As discussed in previous part, the
gas project to be proposed to management will be Option 2, namely delivering
60 BBTUD sales gas to buyer B for about 9 years, then delivering 15 BBTUD to
buyer B for next 7 years. In order to comprehend the project economics, a sensitivity
analysis needs to be provided.
2. Development of the feasible alternative
Option 2 has the economic indicators as follows.
CASE
2
|
|
IRR
|
13.44%
|
NPV@10% (MUSD)
|
59,644
|
ERR
|
-0.57%
|
3. Development of the outcome
A sensitivity analysis is built 3 using economic indicators, i.e. IRR,
NPV and ERR, applied for the changes of OPEX, CAPEX and Gas Price. Sensitivity
analysis is conducted adopting to the principle of ‘Ceteris Paribus', which is a
shorthand for indicating the effect of one economic variable on another,
holding constant all other variables that may affect the second variable. As a
result in this analysis, when OPEX change, the others remain constant.
4. Selection of criteria
The result of sensitivity analysis is shown in Table 1.
Table 1. Sensitivity Output
5. Analysis
From Table 1 above, the charts of sensitivity are developed for each
indicator. Figure 1 is a sensitivity chart for NPV when applying changes for
CAPEX, OPEX and Gas Price.
Figure 1. NPV Chart for Sensitivity Analysis
According to that chart, the change of gas price has stronger impact on NPV
than the change of CAPEX and OPEX. Meanwhile, the change of CAPEX change has
stronger impact on NPV than the change of OPEX. The radar chart of such NPV
sensitivity is shown in Figure 2.
These findings are also consistent with other indicators, i.e. IRR and ERR
as shown in Table 3 and 4. As a result, Gas Price is the strongest variable to
influence the economics.
Figure 2. NPVRadar Chart for Sensitivty
Analysis
Figure 3. IRR Radar Chart for Sensitivty
Analysis
Figure 4. ERR Radar Chart for Sensitivty
Analysis
6. Selection of alternative
Based on above analysis, the sequences of high-low impacted variable on
project economics is as follows:
1.
Gas Price
2.
CAPEX
3.
OPEX
7. Performance monitoring and
post-evaluation of results
To summarize, the sensitivity analysis is required to look at the impacts
of each variable on the project economics. Having looked at the marginality of project
economics, the management shall leverage the project with sequential approach
which impacts to the economics, starting from gas price negotiation, then CAPEX
optimization including EPCI negotiation, and finally OPEX reduction.
References:
·
Asmoro,
Trian Hendro. (2012, Nov 24). W20_TRI_ Economic Evaluation on Gas Development
Project. Retrieved from: http://aacemahakam.blogspot.com/2012/11/w20tri-economic-evaluation-on-gas.html
·
Brassard,
M and Ritter, D (2010), The Memory Jogger (2nd Edition),Canada, Radar Chart
·
Investopedia.
(2012, Dec 14). Definition of 'Ceteris Paribus'. Retrieved from: http://www.investopedia.com/terms/c/ceterisparibus.asp#axzz2EzMOq9kj
Awesome as usual, Pak Trian....
ReplyDeleteAbout the only comment/suggestion I can offer would be for Step 7, you would monitor the price of gas (and the other top variables) to see if they were consistent with the model.
The real value of a sensitivity analysis is to provide a baseline to monitor the most important variables.
If you want, and have the software, can you run a sensitivity analysis which produces a tornado diagram as well as the more traditional Spider Graphs and Radar Charts?
Keep up the great work but I need you to mentor your team to get that weekly report done.
Almost guaranteed you will see questions on the various exams about rebaselining and everyone needs to know how to do it correctly.
BR,
Dr. PDG, Jakarta