Line Max Units Built

Units:	-
Mode:	Input Only
Multi-band:	False
Default Value:	0
Validation Rule:	In (0,1)
Key Property:	No
Description:	Maximum number of units automatically constructed in aggregate over the planning horizon

Line Max Units Built is either zero or one indicating if LT Plan is allowed to build a new Line any time across the planning horizon.

Example

Line	Property	Value	Units
X-Y	Units	0	-
X-Y	Max Flow	150	MW
X-Y	Max Units Built	1	-
X-Y	Build Cost	2000	$000
X-Y	Economic Life	35	years
X-Y	WACC	8	%

You can control when the new build is allowed to occur by using the Project Start Date property as in this example:

Line	Property	Value	Units
X-Y	Units	0	-
X-Y	Max Flow	150	MW
X-Y	Max Units Built	1	-
X-Y	Project Start Date	1/01/2030
X-Y	Build Cost	2000	$000
X-Y	Economic Life	35	years
X-Y	WACC	8	%

In this example the Line cannot be built until the year 2015. You can controls whether the Line is built in particular years with Max Units Built in Year and/or Min Units Built in Year.

If the number of units that can be built varies over time, then it is best practice to model this by entering the sum total of all units that can be built in Max Units Built once and use Max Units Built in Year and Min Units Built in Year to vary how many can be built during a given time span.