STEP 8: CABLE SIZING FOR SOLAR POWER SYSTEM
Parameters Recap from our previous sizing steps 1. Daily Energy Consumption: 20.75 kWh 2. Total Peak Power: 3430 W 3. Days of Autonomy: 2 days 4. Solar Hour: 4 hours 5. Calculated Solar Array Value: 6.48 kW 6. Number of Solar Modules: 22 pieces of 300W modules 7. Battery Bank Size: Approximately 960.65 Ah at 48V (with 90% DOD) "DOD" stands for (Depth of Discharge) 8. Inverter Sizing: 5KVA inverter is ideal for the system 9. Charge Controller Size: 170A (rounded up from 168.75A with a safety margin of 25%) Number of Charge Controllers Needed: 2 (assuming 100A controllers are used) 10. System Cable Sizing? AMPERCITY TABLE FOR COPPER CABLE SN AWG/kcmil Approx. Area (mm²) SWG Equivalent Insulation Type (90°C) Ampacity in Conduit or Raceway Free Air Ampacity 1 14 AWG 2.08 16 SWG THWN-2/THHN 25 Amps 30 Amps 2