Utilization of Rooftop Solar Units to Generate Electricity and Hydrogen: A Technoeconomic Analysis
Table 7
Technical and economic analysis of the proposed system under scenario 2.
Project lifetime
LCOH ($/kg)
NPC ($)
Operating cost ($/yr)
Initial capital ($)
Annualized O & M ($/yr)
Excess electricity (kWh/yr)
Revenue by selling the excess electricity ($/yr)
Hydrogen generation (kg/yr)
PBP (yr)
CO2 emission reduction (kg/yr)
10
3.62
4,826
-1,040
20,422
257
16,212
2,464
90
2.2
20
6.53
26,280
129
20,422
257
16,212
2,464
90
11.9
30
6.34
60,150
373
20,422
257
16,212
2,464
90
27.2
40
5.93
121,138
438
20,422
257
16,212
2,464
90
54.9
Note: the last column includes two numbers, the first one is for the amount of CO2 reduction resulted from solar electricity production, and the other is for that from hydrogen utilization as fuel.
