Description
Type: int
Specifies under what conditions the buyer and seller should be excused of their delivery obligations.
Valid values:
- 
                1 = Firm
Never excused of delivery obligations.
 - 
                2 = Interruptible or non-firm
Excused when interrupted for any reason or for no reason without liability.
 - 
                3 = Force majeure
Excused when prevented by force majeure.
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                4 = System firm
Must be supplied from the owned or controlled generation of pre-existing purchased power assets of the system specified.
 - 
                5 = Unit firm
Must be supplied from the generation assset specified.