Ozone depleting substances and the greenhouse gases HFCs, PFCs and SF6

Appendix 4

GWP contribution from HFCs, PFCs, and SF6, 1993-2020.

The table below shows projections of determined GWP contributions.

The emission projections are determined by starting with a `steady state' consumption using 2003 as the reference year and the cut-off dates for the phasing-out of specific substances, cf. the Statutory Order regulating certain industrial greenhouse gases. A tax effect is also included in the relevant areas of application and expected increases in several application areas are taken into account as much as possible, as are expected reductions in several of the application areas. However, projections of the consumption of HFC-404a in the emission calculations are based on conservative developments. The phasing out of HCFC-22 refrigerating plants is expected to lead to greater increases in the consumption of HFC-404a in commercial refrigerating plants than was presupposed, since HFC-404a together with CO2 plants are the most obvious substitution possibilities. From 1 January 2000, it has not been permitted to build new HCFC-22 systems, and from 1 January 2002, it has not been permitted to substitute with HCFC-22 in existing refrigerators.

The calculated GWP contribution expresses actual emissions, adjusted for imports and exports (the latest basis of calculation).

An improvement in the data on the use of SF6 in laboratories meant that there is a slight rise in the emissions from this source in 2002.

Table 1. GWP contribution from HFCs, PFCs, and SF6 in 1000 tonnes, 1993-2020. The figures in this table need changing from, eg. 0,1 to 0.1.

Click here to see the Table.

 



Version 1.0 April 2005, © Danish Environmental Protection Agency