Analyze this PV/battery system (ignore battery discharge rate and temperature constraints):
1. PV Module characteristics: PR = 100 W, VR = 20.0 V, VOC = 22 V, IR = 5.0 A, ISC = 6 A
2. Battery characteristics: 6 V, 100 Ah (each)
3. Coulomb efficiency 90%; Maximum discharge 80%
4. Insolation: 6 kWh/m2day
5. Inverter efficiency: 80%;
6. Dirt, etc, efficiency: 90% (10% loss)
a. Find the watt-hours/day that would reach the loads (assume all PV current passes through the batteries):
b. If the load requires 600 Wh/day, for how many cloudy days in a row can fully-charged batteries supply the load?
Answers
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Posted 15 Oct 2017 10:10 AM
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