SDF: SDF MahiGeer Goth

Design of Solar System

Sr. #	Product	Units	Wattage	Total Watts	Daily Usage ( Hrs)	Total Watts -hrs
1	DC fan	22	36	792	6	4752
2	Energy Saver Lights	22	12	264	6	1584
				1056		6336

	Load =				6336	WH
	Current required for Aplinces	Total watts/System voltage			88	A
	Average daily sunny hours in project area				12	hrs
	Required Backup time				1	hrs
	System Voltage				12	V
	Design of Battery
	Backuptime (Hr)xLoad(watts)/System voltage				88	Ah
	add Eff. @ 90 %				97.7777777778	Ah
	add 80 % DoD				122.222222222	Ah
	Des Amp. Hrs			Say	122	Ah
	Proposed Battery Size				110	Ah
	No of Batteries				1.10909090909	No
				Say	1	No
	Design of Solar Panels
	Current required for Applinces = total watts/system voltage				88	A
	Current required for Battery = 60% DoD/average daily sunny hrs				10.1851851852	A
	Total current required				98.1851851852	A
	Lets Take currents for applinces
	Power for Solar Panel required = total current required x system voltage				1056	W
	add 20 % losses ( lossess + conductor effeiciency)				1267.2	W
	Proposed Size of panel				250	No
	No of Panels				5.0688	No
				Say	5	No
	Design of Charge Controller				105.6	A
	Proposed Size of Charge controler				110	A
	No of Charge Controlers				0.96	No
				say	1	No
	for safety of battery proposed 01 charge controlers of 12v/110 A.