Pathway

CS NG-C

CS NG-F

CS NG-C-Seq

CS NG-F- Seq

CS Coal-C

CS Coal-F

CS Coal-C-Seq

CS Coal-F-Seq

CS Nu-F

Table E-

4

5

6

7

8

9

10

11

12

Dispensing costs, $/kg H2

 

Variable costs

 

Electricity

0.14

0.11

0.14

0.11

0.14

0.11

0.14

0.11

0.11

Non-fuel O&M, 1%/yr of capital

0.09

0.06

0.09

0.06

0.09

0.06

0.09

0.06

0.06

Total variable costs

0.23

0.17

0.23

0.17

0.23

0.17

0.23

0.17

0.17

Fixed costs, 5%/yr of capital

0.05

0.04

0.05

0.04

0.05

0.04

0.05

0.04

0.04

Capital charges, 18%/yr of capital

0.25

0.18

0.25

0.18

0.25

0.18

0.25

0.18

0.18

Total Dispensing Costs

0.54

0.39

0.54

0.39

0.54

0.39

0.54

0.39

0.39

H2 costs, $/kg

 

Production

1.03

0.92

1.22

1.02

0.96

0.71

1.03

0.77

1.63

Distribution

0.42

0.31

0.42

0.31

0.42

0.31

0.42

0.31

0.31

Dispensing

0.54

0.39

0.54

0.39

0.54

0.39

0.54

0.39

0.39

CO2 disposal

0

0

0.09

0.08

0

0

0.16

0.15

 

Carbon tax

0.13

0.12

0.02

0.02

0.26

0.23

0.04

0.03

 

Total H2 Costs

2.11

1.73

2.28

1.82

2.17

1.63

2.19

1.64

2.33

Carbon dioxide vented to atmosphere

 

kg carbon/kg H2

2.51

2.39

0.42

0.35

5.12

4.56

0.82

0.60

 

Direct use

2.45

2.34

0.26

0.24

4.90

4.50

0.49

0.45

 

Indirect use

0.06

0.05

0.16

0.12

0.21

0.07

0.33

0.15

 

kg CO2/kg H2

9.22

8.75

1.53

1.30

18.76

16.73

3.00

2.21

 

Direct use

8.99

8.56

0.95

0.88

17.98

16.49

1.80

1.65

 

Indirect use

0.23

0.18

0.58

0.42

0.77

0.25

1.20

0.56

 

Carbon charge ($/kg)

0.13

0.12

0.02

0.02

0.26

0.23

0.04

0.03

 

Carbon dioxide sequestered

 

Carbon dioxide (kg CO2/kg H2)

 

 

8.56

7.91

 

 

16.19

14.84

 

Carbon

 

 

2.34

2.16

 

 

4.41

4.05

 



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