Usman Abdul Qadir

STAND ALONE PV SYSTEM LOAD DETAILS Sr. No Item Nos. 1 DC Mini Split AC 1 Power (W) Total Power (P) (W) Per Day Usage (h/d) Total Energy Consumption per day (Wh/d) 1000 1000 6 6000 6.000 6000 6.000 1000 Total (kWh/d) CALCULATION OF PV ARRAY 5500 (Whm-2d1 ) Data sheet-Site PV module efficiency 'ηPV' 0.165 (%) Data sheet-PV Battery Efficiency 'ηbat' (%) 0.95 (%) Data sheet-Battery Inverter Efficiency 'ηinv' (%) 0.95 (%) Data sheet-Inverter Standard test condition 'Tstc' 25 (°C) (°C) Data sheet-PV Data sheet-PV (47±3) %/K (-0.47%/K) Average available irradiation 'Have' Normal operating cell temperature 'Tnoct' 45 Temperature coefficient of Pmax'y' 0.0047 Temperature correction factor 'Tcf' 91% Area of PV Modules required 8.09 (m2) Peak power (Wp) of PV system required (W) Factor 1334 W Peak power (kWp) required by PV modules (kW) Fill Factor (Parameter X) Fill Factor Range (Parameter Y) - Peak power of PV modules (Wpm) Open Circuit Voltage per PV module at STC 'Voc' (V) - W X within range of Y Data sheet-PV V Data sheet-PV Maximum Power Voltage per module at STC 'Vmpp' (V) 42.50 V Data sheet-PV Short Circuit Current at STC (Isc) 8.52 A Data sheet-PV Maximum Power Current at STC (Impp) 8.00 A Data sheet-PV Actual No. of Modules required Rounded No. of Modules 3.92 4.00 Max. Voltage from PV array at Voc at STC (Varr-oc-STC) 205 V Max. Voltage from PV array at Vmpp at STC(Varr-mpp-STC) 170 V Loss factor 1.25 1.33 kW INVERTER SIZING Inverter Sizing-Theoretical (kW) Surge factor Inverter Sizing-calculated (25% Increase+surge factor) - W W W Inverter Sizing-calculated (Round) (Parameter H) 1.3 kW BATTERY SIZING Nominal Voltage of Battery (V) Ah of one 12V battery (Ah) Depth of discharge (Dd) Autonomy (No. of days) 12 V 200 Ah 0.6 1 Size of battery bank required 877 Ah No. of batteries 4.39 No. of batteries Battery voltage required for inverter No of batteries required in series 4 12 1 Number of srings for battery bank (parallel circuit)Actual 4 Number of srings for battery bank (parallel circuit)Practical 4 Total No. of batteries matched 4 V No of modules = 4 Power of PV module = 340Wp Size of inverter (theoretical) = 1250W Recommended Inverter size = 1300W Battery AH = 200 No. of Batteries = 4 • • It is recommended to install at least 1250W inverter and output 208-240V No. of batteries depend upon the backup period if you want to reduce backup period, no. of batteries can be reduced.