Feasibility and Optimal Design of a Stand-Alone Photovoltaic Energy System for the Orphanage

Table 1

The electrical load data.

Description of item	Qty	Load (watts per unit)	Load (watts); total	Daily hours of actual; utilization (hr. per day)
Television	1	80	80	3 hrs. (16:00 hr.–19:00 hr.)
Satellite decoder	1	20	20	3 hrs. (16:00 hr.–19:00 hr.)
Fan	2	75	150	3 hrs. (16:00 hr.–19:00 hr.)
Electric bulb (lighting)	4	15	60	4 hrs. (19:00 hr.–22:00 hr.); (06:00 hr–07:00 hr.)
Refrigerator	1	100	100	24 hrs. (0:00 hr.–23:00 hr.)
Washing machine	1	250	250	1 hr. (13:00 hr.–14:00 hr.)