OPERATION_MODES

Confine the device’s power to one of several power ranges at every time step. Each operation mode declares a consumption-range (non-negative, positive is consumption) and/or a production-range (non-negative, positive is production); a mode may use either or both, and combining both (each starting at 0) forms a single band through zero. This is useful for devices that cannot modulate their power freely, such as a device that is either off or running at some minimum power (or at one fixed power). Terminology and semantics follow the operation modes of the S2 standard; the S2 signed power-range maps to the FM consumption-range (S2 fixes one sign convention for power, whereas FM leaves it to the user). Declaring operation modes introduces binary decision variables into the optimization problem (making it a mixed-integer linear program), which may increase solve times.