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Page last updated : 15/05/2008

Sulphur hexafluoride - SF6

Source : CITEPA / CORALIE SECTEN format - last updated 28 February 2008

Survey period : since 1990

Emissions Variations
Emissions in 2006 : 1 178 kt CO2e Variation 2006 / 1990 : -41 %
Maximum observed : 2 315 kt CO2e in 1998 Variation 2006 / maximum : -49 %
Minimum observed : 1 178 kt CO2e in 2006 Variation 2006 / minimum : 0 %

Main emitters in 2006 (top 4 of total emissions) :
  1 - Electricity production 42 %
2 - Non-ferrous metal smelting 27 %
3 - Capital goods and mobile machinery 16 %
4 - Chemical industry 11 %

Comments

In 2006, SF6 emissions were estimated at 1 178 kt CO2 equivalent (CO2e) or 49 t in mass. These emissions have fallen since 1990 : -827 kt CO2e (or -35 t in mass), a decrease of 41% between 1990 and 2006.

Just three sectors contribute to SF6 emissions in mainland France , which are by order of importance in 2006 :

  • manufacturing industry : 57% of total emissions,
  • energy conversion : 42%,
  • residential/tertiary : less than 1%.

Manufacturing industry emissions are decreasing since 1990 (-710 kt CO2e, i.e. -51%). Emissions come essentially from magnesium production, electric equipment, electronic components manufacturing and semiconductor production.

The evolution observed is coming from :

  • in one hand, the SF6 consumption reduction in the magnesium production, as well in foundries than to the only factory of first fusion which closed-down in 2002. It is important to stress that this factory has been converted in recycling magnesium and is consuming SF6 at the same level than in 2000 since the year 2004.
  • in the other hand, from the variations of the electric equipment activity (a great fall of 160 kt CO2e has been observed since 1990 due to real improvements).

Between 2004 and 2006, the decrease of emissions was due to improvements realised in some magnesium production sites and by the production of high and average voltage electric equipments.

Emissions have slightly reduced in energy conversion between 1995 and 1998 mainly in a result of a better air-tight of the electric equipments and maintenance procedures until 2002. Improvements do not balance the increase of the fleet anymore since then.

From 1999, emissions began to fall in the tertiary sector, mainly as a result of this substance no longer being used for the production of some sports shoes.

 

 

  
 
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