Interface Index

Interface Input Properties

Name	Units	Multi-band	Default Value	Validation Rule	Key Property	Description
Build Non-anticipativity	$/MW	False	-1		False	Price for violating non-anticipativity constraints in scenario-wise decomposition mode
Contingency Limit Penalty	$/MWh	False	-1		False	Penalty for exceeding contingency flow limits
Economic Life	yr	False	30	≥0	False	Economic life of the interface (period over which expansion costs are recovered).
Expansion Cost	$000	False	0		False	Cost of expanding the interface by one megawatt
Firm Capacity	MW	False	0		False	Contribution of the interface to region capacity reserves
Fixed Flow	MW	False	0		False	Fixed flow on interface
Fixed Flow Penalty	$/MWh	False	-1		False	Penalty for violation of [Fixed Flow].
Flow Non-anticipativity	$	False	0		False	Price for violating non-anticipativity constraints in scenario-wise decomposition mode
Flow Non-anticipativity Time	h	False	0	≥0	False	Window of time over which to enforce non-anticipativity constraints in scenario-wise decomposition
Formulate Upfront	Yes/No	False	0	In (0,-1)	False	If constraints should all be formulated upfront rather than checked iteratively.
Limit Penalty	$/MWh	False	-1		False	Penalty for violation of limits
Max Expansion	MW	False	0	≥0	False	Maximum interface expansion
Max Expansion In Year	MW	False	1E+30	≥0	False	Maximum interface expansion allowed in the year
Max Flow	MW	False	1E+30		False	Maximum flow on interface
Max Ramp Down	MW/min	False	1E+30	≥0	False	Maximum ramp down rate
Max Ramp Up	MW/min	False	1E+30	≥0	False	Maximum ramp up rate
Min Expansion	MW	False	0	≥0	False	Minimum interface expansion
Min Expansion In Year	MW	False	0	≥0	False	Minimum interface expansion allowed in the year
Min Flow	MW	False	-1E+30		False	Minimum flow on interface
Offer Base	MW	False	0		False	Base dispatch point for balancing offer
Offer Price	$/MWh	True	10000		False	Price offered in band for reference direction flows
Offer Price Back	$/MWh	True	10000		False	Price offered in band for counter-reference direction flows
Offer Quantity	MW	True	0		False	Quantity offered in band for reference direction flows
Offer Quantity Back	MW	True	0		False	Quantity offered in band for counter-reference direction flows
Offer Quantity Format	-	False	0	In (0,1)	False	Format for [Offer Quantity] and [Offer Price]
Overload Max Rating	MW	False	0		False	Emergency rating in the reference direction
Overload Min Rating	MW	False	0		False	Emergency rating in the counter-reference direction
Ramp Penalty	$/MW	False	0		False	Penalty for changes in flow on the line
Units	-	False	1	In (0,1)	True	Flag if interface is in service
WACC	%	False	10	≥0	False	Weighted average cost of capital
x	-	True	0		False	Value to pass-through to solution
y	-	True	0		False	Value to pass-through to solution
z	-	True	0		False	Value to pass-through to solution

Interface Lines Input Properties

Name	Units	Multi-band	Default Value	Validation Rule	Key Property	Description
Flow Back Coefficient	-	False	0		False	Coefficient of counter-reference direction flow in interface
Flow Coefficient	-	False	1		False	Coefficient of flow in interface
Flow Forward Coefficient	-	False	0		False	Coefficient of reference direction flow in interface

Interface Transformers Input Properties

Name	Units	Multi-band	Default Value	Validation Rule	Key Property	Description
Flow Coefficient	-	False	1		False	Coefficient of transformer flow in interface

Interface Constraints Input Properties

Name	Units	Multi-band	Default Value	Validation Rule	Key Property	Description
Expansion Cost Coefficient	$	False	0		False	Coefficient of total build cost
Flow Back Coefficient	MW	False	0		False	Coefficient of counter-reference direction flow
Flow Coefficient	MW	False	0		False	Coefficient of flow
Flow Forward Coefficient	MW	False	0		False	Coefficient of reference direction flow

Interface Objectives Input Properties

Name	Units	Multi-band	Default Value	Validation Rule	Key Property	Description
Expansion Cost Coefficient	$	False	0		False	Coefficient of total expansion cost
Flow Back Coefficient	MW	False	0		False	Coefficient of counter-reference direction flow
Flow Coefficient	MW	False	0		False	Coefficient of flow
Flow Forward Coefficient	MW	False	0		False	Coefficient of reference direction flow

Interface Conditions Input Properties

Name	Units	Multi-band	Default Value	Validation Rule	Key Property	Description
Flow Coefficient	MW	False	0		False	Coefficient of flow in condition

Interface Output Properties

Name	Summary Name	Property Group	Phases	Multi-band	Description
Available Transfer Capability - MW	Available Transfer Capability - GWh	Capacity	LT Plan, MT Schedule, ST Schedule	False	Available transfer capability on the interface.
Available Transfer Capability Back - MW	Available Transfer Capability Back - GWh	Capacity	LT Plan, MT Schedule, ST Schedule	False	Available transfer capability on the interface in the counter-reference direction.
Capacity Built - MW	Capacity Built - MW	Expansion	LT Plan	False	Capacity built (expansion of interface in both directions)
Capacity Reserves - MW	Capacity Reserves - MW	Capacity	LT Plan, PASA, MT Schedule, ST Schedule	False	Reserve provided by lines in the interface
Cleared Offer Cost - $	Cleared Offer Cost - $000	Production	LT Plan, MT Schedule, ST Schedule	False	Area cleared under offer curve
Cleared Offer Price - $/MWh	Cleared Offer Price - $/MWh	Production	LT Plan, MT Schedule, ST Schedule	False	Price of marginal offer band
Expansion Cost - $000	Expansion Cost - $000	Expansion	LT Plan	False	Cost of expanding the interface by one megawatt
Export Limit - MW	Export Limit - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Maximum flow allowed on the interface
Firm Capacity - MW	Firm Capacity - MW	Capacity	LT Plan, PASA, MT Schedule, ST Schedule	False	Contribution of the interface to region capacity reserves
Fixed Flow - MW	Fixed Flow - GWh	Production	LT Plan, MT Schedule, ST Schedule	False	Fixed flow on interface
Fixed Flow Violation - MW	Fixed Flow Violation - GWh	Production	LT Plan, MT Schedule, ST Schedule	False	Violation of [Fixed Flow] constraint.
Fixed Flow Violation Cost - $	Fixed Flow Violation Cost - $000	Production	LT Plan, MT Schedule, ST Schedule	False	Cost of [Fixed Flow] violations.
Fixed Flow Violation Hours - h	Fixed Flow Violation Hours - h	Production	LT Plan, MT Schedule, ST Schedule	False	Number of hours that [Fixed Flow] is violated.
Flow - MW	Flow - GWh	Production	LT Plan, MT Schedule, ST Schedule	False	Flow on the interface
Flow Back - MW	Flow Back - GWh	Production	LT Plan, MT Schedule, ST Schedule	False	Flow on the interface in the counter-reference direction
Hours Congested - h	Hours Congested - h	Production	LT Plan, MT Schedule, ST Schedule	False	Number of hours the interface is congested.
Hours Congested Back - h	Hours Congested Back - h	Production	LT Plan, MT Schedule, ST Schedule	False	Number of hours the interface flow is congested in the counter-reference direction
Import Limit - MW	Import Limit - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Minimum flow allowed on the interface
Loading - %	Loading - %	Production	LT Plan, MT Schedule, ST Schedule	False	Loading relative to thermal limit.
Loading Back - %	Loading Back - %	Production	LT Plan, MT Schedule, ST Schedule	False	Loading in the counter-reference direction relative to thermal limit.
Max Flow - MW	Max Flow - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Maximum flow on interface
Min Flow - MW	Min Flow - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Minimum flow on interface
Net Flow - MW	Net Flow - GWh	Production	LT Plan, MT Schedule, ST Schedule	False	Net Flow on the interface
Offer Base - MW	Offer Base - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Base dispatch point for balancing offer
Offer Cleared - MW	Offer Cleared - GWh	Production	LT Plan, MT Schedule, ST Schedule	True	Quantity cleared in band
Offer Cleared Back - MW	Offer Cleared Back - GWh	Production	LT Plan, MT Schedule, ST Schedule	True	Quantity cleared in band
Offer Price - $/MWh	Offer Price - $/MWh	Production	LT Plan, MT Schedule, ST Schedule	True	Price offered in band for reference direction flows
Offer Price Back - $/MWh	Offer Price Back - $/MWh	Production	LT Plan, MT Schedule, ST Schedule	True	Price offered in band for counter-reference direction flows
Offer Quantity - MW	Offer Quantity - GWh	Production	LT Plan, MT Schedule, ST Schedule	True	Quantity offered in band for reference direction flows
Offer Quantity Back - MW	Offer Quantity Back - GWh	Production	LT Plan, MT Schedule, ST Schedule	True	Quantity offered in band for counter-reference direction flows
Overload Export Limit - MW	Overload Export Limit - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Maximum post-contingency flow allowed on the interface
Overload Import Limit - MW	Overload Import Limit - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Minimum post-contingency flow allowed on the interface
Ramp - MW		Production	LT Plan, MT Schedule, ST Schedule	False	Change in flow
Ramp Cost - $	Ramp Cost - $000	Production	LT Plan, MT Schedule, ST Schedule	False	Cost of ramping
Rental - $	Rental - $000	Production	LT Plan, MT Schedule, ST Schedule	False	Flowgate rental
Shadow Price - $/MW	Shadow Price - $/MW	Production	LT Plan, MT Schedule, ST Schedule	False	Shadow price of interface limit in the reference direction
Shadow Price Back - $/MW	Shadow Price Back - $/MW	Production	LT Plan, MT Schedule, ST Schedule	False	Shadow price of interface limit in the counter-reference direction
Violation - MW	Violation - MW	Production	LT Plan, MT Schedule, ST Schedule	False	Violation of the interface limit.
Violation Back - MW	Violation Back - GWh	Production	LT Plan, MT Schedule, ST Schedule	False	Violation of the interface limit in the counter-reference direction.
x	x	Pass-through	LT Plan, PASA, MT Schedule, ST Schedule	True	Value to pass-through to solution
y	y	Pass-through	LT Plan, PASA, MT Schedule, ST Schedule	True	Value to pass-through to solution
z	z	Pass-through	LT Plan, PASA, MT Schedule, ST Schedule	True	Value to pass-through to solution