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

Table 11

Present worth and annualized value of all costs over 40 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	18,843	-83,203	20,999	56	316	82	-362	92
Electrolyzer	1,450	16,070	13,788	-8,013	23,295	6	70	60	-35	101
Hydrogen tank	2,400	13,882	22,980	-15,916	23,346	11	60	100	-69	102
Storage	3,200	42,918	1,149	0	47,267	14	187	5	0	206
Converter	600	6,650	2,298	-3,316	6,232	3	29	10	-14	28
System	20,442	152,087	59,058	-110,448	121,139	90	662	257	-480	529