A method for yearly electricity production planning in a complex power system

The purpose of the paper is to present an efficient method for electricity generation planning in a mixed hydro-thermal power system. The model includes some improvements and gives lots of possibilities for use. It takes into consider the real hydro mechanics parameters of the hydro power plants, and the possibilities of the thermal power plants. The electric consume represented through chronological hourly load, can be divided into intervals with different number and duration of each interval. This paper illustrates the possibilities of the model for yearly electricity generation planning, depending on the number of intervals in the year. On the end of the paper, the results are compared and presented for the various ways of dividing the year into intervals. The application of the model is done on the Macedonian Power System. (Original)