Storage End Effects Method

Units:	-
Mode:	Input Only
Multi-band:	False
Default Value:	0
Validation Rule:	In (0,1,2)
Key Property:	No
Description:	Method used to handle end-of-period storage.
Detail:

Storage End Effects Method controls the treatment of the final End Volume of each simulation step, and how Waterway flows-in-transit are valued or constrained in the optimization. The switch can take these values:

Automatic (value = 0)

The simulator chooses the "Free" option for storage that define Water Value, or if the storage is the head or tail in a simple pump storage generator, otherwise it chooses the "Recycle" option.

Free (value = 1)

End Volume is set freely by the optimization i.e. no additional constraints or values are applied, and flows-in-transit flow into "the sea".

Recycle (value = 2)

The End Volume is constrained equal to the Initial Volume and flows-in-transit recycle back to the beginning of the optimization step. This option adds a constraint to the simulation. The penalty for violating this constraint is by default -1 (indicating a 'hard' constraint). This can be changed with the setting Recycle Penalty.

Note that when LT Plan and/or MT Schedule are run before ST Schedule End Effects Method = "Recycle" applies only to the first simulation phase unless Decomposition Method is set to "None". For example MT Schedule would recycle storage over each year and pass targets to ST Schedule that follow this recycling trajectory.