MiPHSM™ is optimal hourly scheduling (unit commitment & dispatch) of generation resources over the next day or week is an important function for power system operation. The main objective of Hydro System Model (HSM) is to determine the most economical way of hourly production schedule of the hydro resources considering demand side options, water and unit availability over the next day or week.

The objective function is subjected to a set of system operation constraints such as: hydro constraints like water balance in cascaded reservoirs including time delays between upstream releases and downstream arrivals, irrigation constraints, ramp constraints etc.

The optimal solution of hydro system model is of great technical as well as commercial interest. The main complexity in solving this type of problem involves the modelling of nonlinearities, integer decisions, and coupling constraints for different time stages.