NAIIS-User-Manual.Docx Page 49 07/08/2013 
Annex	4:		Default	values	
 
1. Fraction of carbon stored for reference approach 
Bitumen – 1 
Coal oils and tars (from coking coal – 0.75 
Ethane – 0.8 
Gas/Diesel oil – 0.5 
LPG – 0.8 
Lubricants – 0.5 
Naphtha – 0.8 
Natural gas – 0.33 
 
2. Conversion factors 
a. CH 4 volume  CH4 Gg = 0.67 
b. Conversion factors for energy 
From To Multiply by 
J TJ 10 -12 
KJ TJ 10 -9 
MJ TJ 10 -6 
GJ TJ 10 -3 
TJ TJ 1 
cal TJ 4.1868 x 10 -12 
kcal TJ 4.1868 x 10 -9 
Mcal TJ 4.1868 x 10 -6 
Gcal TJ 4.1868 x 10 -3 
Tcal TJ 4.1868 
kWh TJ 3.6 x 10 -6 
MWh TJ 3.6 x 10 -3 
GWh TJ 3.6 
Btu TJ 1.0551 x 10 -9 
kBtu TJ 1.0551 x 10 -6 
MBtu TJ 1.0551 x 10 -3 
GBtu TJ 1.0551 
toe TJ 41.868 x 10 -3 
ktoe TJ 41.868 
Mtoe TJ 4.1868 x 10 4 
TJ J 10 12 
TJ KJ 10 9 
TJ MJ 10 6 
TJ GJ 10 3 
TJ cal 238.8 x 10 9 
TJ kcal 238.8 x 10 6 
TJ Mcal 238.8 x 10 3 
TJ Gcal 238.8 
TJ Tcal 238.8 x 10 -3 
TJ kWh 277.8 x 10 3 
TJ MWh 277.8 
TJ GWh 277.8 x 10 -3 
TJ Btu 947.8 x 10 6 
TJ kBtu 947.8 x 10 3 
TJ MBtu 947.8 
TJ GBtu 947.8 x 10 -3 
TJ toe 23.88 
TJ ktoe 23.88 x x 10 -3 
TJ Mtoe 23.88 x 10 -6