Environmental Project, 890 – Ozone depleting substances and the greenhouse gases HFCs, PFCs and SF6 – Appendix 4 - GWP contribution from HFCs, PFCs, and SF6, 1993-2020

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 2002 as the reference year and employing a series of dates for the phasing-out of specific substances in accordance with 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 refrigerators is expected to lead to an increase in consumption of HFC-404a in commercial refrigerators that is significantly steeper than assumed, since HFC-404a systems and CO₂ systems are the most obvious substitution options. 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 using HCFC-22 in existing refrigerators.

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

Table 1. GWP contribution from HFCs, PFCs, and SF₆ in '000 tonnes, 1993-2020

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