TLR Sensitivities and Generation Shift Factor Sensitivities
(In Version 21 and earlier, the concept of "Shift Factors" was instead called either "TLR Sensitivities" or "Generation Shift Factors:)
They have been renamed simply Shift Factors starting in Version 22. See Shift Factor Sensitivities for more information.
Generation Shift Factor (GSF) Sensitivities are a specific kind of shift factor. GSFs always involve a transfer with the slack bus being the Buyer. Other than this, GSF and Shift Factor calculations are identical.