6. Design the battery bank for a PV system using 50W, 12V panels using 6V, 125 Ah batteries for a home which has daily load requirements of 1700 Wh. The system voltage is 24V. Assume the following: - - an average of 5 hours of sunlight per day. battery storage to supply 3 days of power if in case of no sun. battery efficiency = 75% maximum depth of battery discharge = 70%