Economic Evaluation Parameters Dialog: Time Valuation Tab

EconEvalTimeVal.jpg

This tab is part of the ‘Economic Evaluation Parameters for Entire Project’ dialog; for more details, see Economic Evaluation Parameters for Entire Project Dialog.

Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable

Default Value

Range

 

Year of Analysis
The reference year for economic analysis calculations; for more details on how this is implemented, see Purchase Cost of Listed Equipment.

Present Year

Positive

Year Construction Starts
The first year of the project; for more details on how this is implemented, see Cash Flow Analysis.

Present Year

Positive

Construction Period (months)
The duration of plant construction in months; for more details on how this is implemented, see Cash Flow Analysis.

30

Positive

Startup Period (months)
The duration of plant startup in months; for more details on how this is implemented, see Cash Flow Analysis.

4

Positive

Project Lifetime (years)
The expected lifetime of a project in years; for more details on how this is implemented, see Cash Flow Analysis.

15

Positive

Inflation (%)
The annual inflation rate; for more details on how this is implemented, see Purchase Cost of Listed Equipment.

4

Positive

Low NPV Interest (%)
A low interest rate that is used to calculate the net present value (NPV) of the project; for more details on how this is implemented, see Net Present Value.

7

Positive

Medium NPV Interest (%)
A medium interest rate that is used to calculate the net present value (NPV) of the project; for more details on how this is implemented, see Net Present Value.

7

Positive

High NPV Interest (%)
A high interest rate that is used to calculate the net present value (NPV) of the project; for more details on how this is implemented, see Net Present Value.

7

Positive

Symbol Key: User-specified value (always input); Calculated value (always output); Sometimes input, sometimes output

See also:

      Economics