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214                                 Hybrid-Renewable Energy Systems in Microgrids

          Table 11.3  Data for Sizing and Cost Analysis of Hybrid System

           Description                      Details
           Type of solar module             Multi crystalline
           PV system life time (N)          25 years
           Cost of PV module                US $0.25–$0.35/Wp
           Cell efficiency                  13%
           Module efficiency                >11%
           Power conversion efficiency      90%
           Temperature correction factor    0.9
           Inverter rating                  4 kW
           Efficiency of inverter           90%
           Type of wind turbine             Generic 1 kW
           Cost of wind module              US $0.125–$0.135/Wp
           Life time of wind turbine        15 year
           Hub height                       50 m
           Real interest rate               2.01



          Table 11.4  Solar Radiation and Wind Speed Data

           Months                SR (kWh/m /day)       WS (m/s)
                                          2
           January               4.06                  2.4
           February              5.25                  2.7
           March                 6.39                  2.8
           April                 6.98                  3.1
           may                   7.07                  3.2
           June                  5.88                  3.0
           July                  4.63                  2.5
           August                4.73                  2.2
           September             4.52                  2.1
           October               5.07                  2.2
           November              4.75                  2.2
           December              4.02                  2.9



          Table 11.5  COE and Power Generation Evaluation

                                                Total power
                                Net present cost   generation   Cost of energy
           Hybrid systems       ($)             (kWh/year)   ($/kWh)

           PV–wind–diesel–battery  12812        6990         0.210
           Wind–diesel–battery  16591           7318         0.271
           PV–wind–diesel       18372           7191         0.302
           Wind–diesel          33603           54177        0.552
           PV–diesel            43098           166348       0.709
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