Electric Utilities Sector Supplement - Global Reporting Initiative

Electric Utility Sector Supplement
EN19 Emissions of ozone-depleting
substances by weight.
1. Relevance
The ozone layer (O 3
) filters out most of the sun’s
biologically harmful ultraviolet (UV-B) radiation. The
Montreal Protocol regulates the phase-out of ozonedepleting
substances (ODS) internationally. Measuring
ODS emissions enables an assessment of how well
the reporting organization complies with current and
future legislation, and its likely risks in this area. This is
particularly relevant for organizations whose processes,
products, and services have used ODS and must
transition to new technologies in order to comply with
phase-out commitments. The reporting organization’s
results on ODS phase-out can help indicate its level
of technology leadership and competitive position in
markets for products and services affected by ODS rules.
2. Compilation
2.1 Ozone-depleting substances contained or emitted
from products during their usage and disposal are
not covered by this Indicator.
2.2 Emissions of substances covered in Annexes A, B,
C, and E of the Montreal Protocol on Substances
that Deplete the Ozone Layer are included.
2.3 Identify emissions of ozone-depleting substances
using the following formulas:
3. Definitions
Ozone-depleting substance (ODS)
Indicator Protocols Set: EN
Any substance with an ozone depletion potential (ODP)
greater than 0 that can deplete the stratospheric ozone
layer. Most ozone-depleting substances are controlled
under the Montreal Protocol and its amendments, and
include CFCs, HCFCs, halons, and methyl bromide.
CFC-11 equivalent
CFC-11 is a measure used to compare various substances
based on their relative ozone depletion potential. The
reference level of 1 is the potential of CFC-11 and CFC-12
to cause ozone depletion.
4. Documentation
Information can be derived from internal measurements
and accounting.
5. References
• The Montreal Protocol on substances that deplete
the ozone layer.
• United Nations Environment Programme (UNEP)
Halon Handbook.
IP
&
EUSS
EU
Emissions = Production + Imports- Exports of
Substances
Production = Substances Produced- Substances
Destroyed by Technology- Substances used
entirely as feedstock in the manufacture of other
chemicals
Note: ODS that is recycled and reused is not
considered production.
2.4 Report the emissions of specific ozone-depleting
substances in tonnes and tonnes of CFC-11
equivalent.
Version 3.0/EUSS Final Version
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