OPERATION_MODES
===============

Confine the device's power to one of several power ranges at every time step.
Each operation mode declares a signed power range (positive is consumption, negative is production).
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 <https://docs.s2standard.org/model-reference/FRBC/FRBC.OperationMode/>`_.
Declaring operation modes introduces binary decision variables into the optimization problem (making it a mixed-integer linear program), which may increase solve times.