چکیده:
This paper aims at estimating the efficiency of hydroelectric power plants (renewable energy resources) and thermal power plant (non-renewable energy resources) in Iranian provinces. Data Envelopment Analysis (DEA) approaches is applied to estimate the efficiency. The network is modeled as a linear system with multiple inputs and one output. Fuel cost, labor force, operation cost are used as inputs. Electrical energy delivered per year is used in the model as output. The study offers some detailed policies to improve the efficiency of the plants. Mean technical efficiency of hydroelectric power plant in 2011 and 2010 are 62% and 53%, respectively. Mean technical efficiency of thermal power plant in 2011 and 2010 is 82% and 77%, respectively. The results of the study indicate the fact that mean technical efficiency of thermal power plant in 2010 and 2011 is higher than efficiency of hydroelectric power plants.
خلاصه ماشینی:
Estimating Efficiency of Thermal and Hydroelectric Power Plants in Iranian Provinces Ahmad Sadraei Javaheri Department of Economics and management, Shiraz University, Shiraz sadraei@shirazu.
(2010) study non- parametric Data Envelopment Analysis (DEA) to estimate relative technical efficiency and scale efficiencies of coal-based power plants in India.
There are some studies on efficiency of different sections in electricity industry in Iran some of which are as follows: Emami Meibodi (1997) used DEA method and index of Malmquist, regarding input-orientation view, technical efficiency and total factor productivity of electricity generation in thermal power plants of 26 developing countries.
Hydroelectric power plants in Azerbaijan, Esfahan, Bakhtar, Tehran, Khorasan, Khuzestan, Zanjan, Semnan, Sistanand Baluchistan, Gharbi, Fars, Kerman, Gillan, Mazandaran, Hormozgan,Yazd, Kish provinces for two years (2010 and 2011) were considered as decision- making units (DMU).
Gathering necessary information and calculations for earning inputs and outputs of power plants in each province, technical efficiency of thermal and hydroelectric power plants for 2010 and 2011 was estimated using a two-step method of DMU52 (Model 4 and 5).
Table 4 and 5 show reduced input for putting on efficient frontier of electricity generation for hydroelectric and thermal power plants in each province in 2011.
524232 17 Kish DMU33 0 0 0 Source: The research findings Table 5: Reduced Input for Hydroelectric Power Plants to Achieve the Efficient Frontier in 2011 Order Provinces DMU No. Maintenance Labor Fuel Cost 1 Azerbaijan DMU35 0 0 0 2 Esfahan DMU37 149.