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energetica-india-57_asiapowerweek

Project Technical details These 7 operational projects have been developed by 7 different project developer in same location, the details are given in table 1. The Power generated from the each 2 MW Solar project is connected at 11 kV Voltage level at nearest grid substation owned by Jharkhand State Electricity board. Methodology and data assortment The below described methodology has been followed for the data collection for the performance benchmarking, generation analysis and probabilistic calculation, Month wise actual energy generation data from MNRE website of each operational project has been compiled. 18 months (from September 2013 till February 2015) operational data has been compiled along with actual capacity utility factor (CUF). Project technical information i.e. solar pv technology, capacity break up, make , solar inverter technology, make, evacuation voltage, distance have been fetched from the PDD submitted during the CDM registration in UNFCC. Expected Generation (kWh), expected CUF (%) and net expected CUF (%) (Considering plant unavailability, grid unavailability and temperature losses) have been generated all the projects for the comparison on the common base. The projects have been divided into three categories with respect to technology to evaluate the performance of each technology: Plant with 100% thin film technology Plant with 100% poly C-Si technology Plant with 50% thin film and 50% poly C-Si. The monthly average of all the projects in terms of Capacity Utility Factor (CUF) has been generated to observe the overall performance of the plant and to determine probabilistic exceedance for the energy yield. Results and conclusions • For the comparison of mentioned three types of technology, the average CUF (%) from same technology projects has been taken for 18 months: 2 MW thin film, 2MW Poly C-Si and 2 MW mixed (1MW thin film & 1 MW C-Si). The graph shows that thin film technology shows the best plant performance for the specified location. The reason behind the good performance is the availability of more diffused radiations at location. The results are tabulated in the table below. The standard deviation of about 2.2 % is obtained for the avg. actual CUF (table 2). SOLAR POWER From the Meteonorm 7.1, it has been observed that high diffused radiation of about 100 Kwh/m2.mth on average has been obtained between the months of March to July. Also, the performances of the other two technologies are almost similar for the complete 18 months. So, we can conclude that mixed technology and 100% Poly C-si are showing same performance throughout, only dependent on Global Horizontal Radiation (GHI). • Probabilistic Exceedance for the Projects have also been calculated. The expected monthly average of all the projects comes out to be 16.67%. Expected generation at P60, P70, P75, P90 and P95 has been determined and compared with average actual generation of the plant �� S.NO Plant Performance 100% Thin Film 100% Poly C-si 50% Thin film 50% C-si 1. Expected Avg. CUF(%) 16.85 16.45 17.50 2. Actual Avg. CUF(%) 16.51 15.28 15.40 Table 2. 41 energetica INDIA · MAY | JUN16


energetica-india-57_asiapowerweek
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