One of the most important issues in planning the reservoir type of Medium Hydro-Power Plants (MHPP) is to determine the optimal installation capacity of the MHPP and estimate its optimal annual energy value. In this paper, a method is presented to calculate the annual energy. A computer program has been developed to analyse energy calculation and estimation of the most important economic indices of an MHPP using the sensitivity analysis method. Another program, developed by Matlab software, calculates the reliability indices for a number of units of an MHPP with a specified load duration curve using the Monte Carlo method. Ultimately, com- paring the technical, economic and reliability indices will determine the optimal installation capacity of an MHPP. By applying the above-mentioned algorithm to an existing MHPP named "Bookan( located in the west-north of Iran); the optimal capacity of 30 MW is obtained.
International Journal of Power and Energy Systems, 2008
Medium Hydro-Power Plant; economic analysis; Monte Carlo method; optimized installation capacity