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Table A2.1

CO2 emission factors used in the energy sector category

  Emission factor (t CO2/TJ) Emission factor (t C/TJ)

Gas

   

Maui

51.8 (2004)

14.1 (2004)

Treated

53.7 (2004)

14.6 (2004)

Kapuni LTS

84.1

22.9

Methanol - mixed feed (1990-1994)

62.4

17.0

Methanol - LTS (1990-1994)

84.0

22.9

Kaimiro

65.2

17.8

Ngatoro

46.3

12.6

Rimu

53.7

14.6

Waihapa/Ngaere + Tariki/Ahuroa (1990)*

56.2

15.3

Waihapa/Ngaere + Tariki/Ahuroa (2002)

54.2

14.8

McKee

54.2

14.8

Mangahewa

52.3

14.3

Liquid fuels

   

Regular petrol (all petrol 1990-1995)

66.2

18.1

Petrol - premium (1996 and onwards)

67.0

18.3

Diesel

69.5

19.0

Aviation fuels

68.1

18.6

Av gas

65.0

17.7

Other

72.9

19.9

Fugitive - flared

65.1

17.8

LPG

60.4

16.5

Heavy fuel oil

73.5

20.0

Light fuel oil

72.0

19.6

Averaged fuel oil

73.0

19.9

Bitumen (asphalt)

76.1

20.8

Biomass

   

Biogas

101.0

27.5

Wood (industrial)

104.2

28.4

Wood (residential)

104.2

28.4

Coal

   

All sectors (sub bit)

91.2

24.9

All sectors (bit)

88.8

24.2

All sectors (lignite)

95.2

26.0

* For the years 1991-2001, the emissions factors for these gas streams are interpolated between the 1990 and 2002 figures.