Cement, Energy and Environment

Location Capacity SPV Modules Inverter Transformer Tracker Land utilised Project cost Energy guarantee Unit cost (As/kwh} Annual Revenue Annual O&M Cost Simple payback Techno economics of the project Aamakrishnapuram, Muktyala village, Jaggayyapet, Krishna dist., AP 521457, Latitude: 16.1°N, Longitude: 80.0°E, Altitude 107 Mtr 1.15 MWp DC with single axis tracking system 4800 no x 240 Wp each Polycrystalline Solar PV Modules with 14.6 % Efficiency. Module life 25 years, Product warranty 5 years, power generation guarantee: 90% at the end of 10 1 h year and 80% at the end of 25 1 h year. Bonfiglioli Vectron APS1 110 with Multi MPPT, 5 years warranty 1250 KVA, YNd11 , 6600V I 360V step up transformer. Smart track- Single Axis Tracker, 5 years warranty 5.5 acres As. 8.00 Cr 1908016 kWh I year with 0.8 % degradation year on year. 8.65 As/kwh (5. 15 As/kwh Energy + 3.50 As/kwh REC) 8.65 As/kwh x 19.08 Lac kwh/year= 165 Lac As/year - 6.00 Lac As/year 5 years This solar project commissioned in 2013 under This solar power plant is grid interactive model REC mechanism as per the CERC Regulation and and works only when grid supply is available. Solar thus obtained REC registration from NLDC. Entire Inverter has inbuilt features like protection and energy generated from solar plant is being consumed with in cement plant for REC eligibility. As shown in fig-1 total cement plant load is 18.5 MW, thermal CPP generation capacity is 18 MW and the solar plant capacity is 1.15MWp. The solar plant generates around 800 KW during the day time (7 AM - 6 PM) as shown in fig-3 which results daily yield around 5200kwh per day on annual average basis. However actual day yield varies between 4000kwh - 7500kwh per day depends on the solar irradiation of that particular day. Total energy generated from this solar plant is contributing 2 % of annual electrical energy consumption of their cement plant. automatic self-synchronisation mechanism and thus automatically synchronises when grid supply is available. In case of grid failure automatically stop the generation and again start automatically whenever grid resumes. No need of manual synchronisation or manual intervention. The solar inverter has 5 MPPT modules and based on input solar irradiation level , respective MPPT module start I stops the generation and maximise the energy yield. This project execution is completed in record time of 69 days from jungle cutting to generation of energy with excellent planning . KCP have used Single axis tracker system to improve the yield and now overall PLF achieved around 19 %. 18 (