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

Table 10

Present worth and annualized value of all costs over 30 years.

Component	Net present costs ($)					Annualized costs ($/yr)
	Capital	Replacement	O & M	Salvage	Total	Capital	Replacement	O & M	Salvage	Total
PV array	12,792	72,567	8,728	-82,466	11,621	120	682	82	-775	109
Electrolyzer	1,450	4,156	6,387	0	11,993	14	39	60	0	113
Hydrogen tank	2,400	13,882	10,644	-15,775	11,151	23	130	100	-148	105
Storage	3,200	18,269	532	0	22,001	30	172	5	0	207
Converter	600	1,720	1,065	0	3,385	6	16	10	0	32
System	20,442	110,594	27,356	-98,241	60,151	193	1,039	257	-923	566