Utilization of Rooftop Solar Units to Generate Electricity and Hydrogen: A Technoeconomic Analysis

Table 8

Present worth and annualized value of all costs over 10 years.

Component	Net present costs ($)					Annualized costs ($/yr)
	Capital	Replacement	O & M	Salvage	Total	Capital	Replacement	O & M	Salvage	Total
PV array	12,792	0	1,231	-15,190	-1,167	852	0	82	-1,012	-78
Electrolyzer	1,450	0	901	-975	1,376	96	0	60	-65	91
Hydrogen tank	2,400	0	1,501	-2,906	995	160	0	100	-193	67
Storage	3,200	0	75	0	3,275	213	0	5	0	218
Converter	600	0	150	-404	346	40	0	10	-27	23
System	20,442	0	3,858	-19,475	4,825	1,361	0	257	-1,297	321