بهينه سازي بهره برداري از مخازن با احتساب عوامل اقتصادي و قيمت انرژي برقابي

Optimization of Hydropower Reservoir Systems Operation Considering Economic Factors and Energy Prices

This paper deals with the optimization of operation of hydropower reservoir systems considering economic factors and market price of electricity. Consumerʹs response to the price variation (price elasticity) is one of the most important factors in competitive markets. First different economic methods are used to estimate the elasticity of electricity in the Iranian electricity market. The results reveal that price elasticity in Iran is about 0.2, which is low. Subsequently, a dynamic programming model was developed to optimize the operation of Karoon-5 hydropower dam reservoir system as a real case study, in which the value of hydropower generated in different seasons is obtained using the estimated elasticity. Comparison of results in two scenarios, i.e. with and without considering electricity market price, shows the significance of considering electricity price and its variations on results of the reservoir operation model. The operational model taking advantage of economic signals would better distribute energy production in different seasons and would increase the firm energy production.