Sheet1Solar Power Calculatordesigned by: Aftab Sarwar (info@electrodesigns.net)Dated: July 16, 2010Description: Enter parameters in left column and see results in right columnSystem SpecificationsResultsParameterValueParameterValueOutput voltage (VAC)220Required output power to load (W)143Output continuous current (A)0.65Watt-hrs/day3432Load usage (Hrs/day)24Watt-hrs/day compensating inverter and battery losses4290Inverter loss (%age)*15Amp-hrs/day required by output load178Batteries loss (%age)*10Amp-hrs/day required by output load compensating battery charge/discharge losses213.6Battery charge/discharge loss (%age)*20Solar array Amps30.5142857143Effective power supply from solar panels (hours/day)*7Number of solar modules in parallel required5Wattage of each panel*175Total number of solar modules required5Output voltage of a single panel*36Total power of solar modules875Battery type (12V/24V/48V)24Total batteries Ah required8.9Battery capacity (Ah)*150Inverter power required (W)164.45Optimum Amps/Solar module (depends on specs)*7.5Inverter power with surge protection (W)197.34No. of solar panels in series required to charge a single battery cell **1Charge controller min. Amps (for each solar module)6.1028571429Inverter surge protection (%age)***20* depends upon manufacturer's provided specifications** depends upon panel and battery type e.g, 24V battery requires 2, 15V panels*** depends upon load type, inductive type loads like AC, motor need more surge protection than resistive type loads like bulbs etc.

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