This category depends on selecting the Unit Power Table method (see Unit Power Table) and describes how the monetary cost associated with starting up or shutting down a unit (turbine) will be modeled. There are two methods in this category, one which does not model these costs (effectively assigning them a value of 0) and one which uses a table describing the combined costs for starting up and shutting down a unit.

This is the default, no action method.

For each unit, this method lumps the cost of startup and shutdown into one value. See Unit-level Constraints for descriptions of added constraints.

See Unit Lumped Cost Method in Objects and Methods for slot descriptions.