Generator Offers Must Clear in Order

Units:	Yes/No
Mode:	Input Only
Multi-band:	False
Default Value:	False (0)
Validation Rule:	False (0) or True (-1)
Key Property:	No
Description:	Flag to control ordering of clearing of user-defined generator offers.
Detail:

Generator Offers Must Clear in Order controls how non-monotonic generator offers are cleared. By default (value = 0), generator offers are cleared from lowest to highest priced regardless of the band numbering. Setting this property to true (-1) PLEXOS adds integer constraints to the simulation to ensure that offers are always cleared in band order.

Example:

Generator	Property	Value	Units	Band
G1	Units	1	-	1
G1	Max Capacity	240	MW	1
G1	Offer Quantity	75	MW	1
G1	Offer Quantity	80	MW	2
G1	Offer Quantity	55	MW	3
G1	Offer Quantity	30	MW	4
G1	Offer Price	8.54	MW	1
G1	Offer Price	8.54	MW	2
G1	Offer Price	13.79	MW	3
G1	Offer Price	9.12	MW	4

Here the generator offers in four bands. The price in band four is lower than in band three. By default band four would clear before band three, but enabling this option will force band three to clear before band four.

Note that this option applies only when you define the offers for the generator. If the no offer is defined the generator's cost model is based on heat rate. The property Production Heat Rate Error Method controls how PLEXOS handles non-convex heat rate functions.