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

Table 3

Simulation results of economic cost.

Component	Capital ($)	Replacement ($)	O and M ($)	*Salvage ($)	Total NPC ($)
PV	2,800	0	1,606	0	4,406
Surrette 6CS25P	54,960	23,855	28	−4,989	73,853
Converter	200	0	0	0	200
System	57,960	23,855	1,633	−4,989	78,459

∗Salvage value is the value remaining in a component of the power system at the end of the project lifetime; that is, the salvage value of a component is directly proportional to its remaining life.