Denmark's National Inventory Report 2005 - Submitted under the ...

1 Introduction
The Danish atmospheric emission inventories are prepared on an annual basis and
the results are reported to the UN Framework Convention on Climate Change (UNFCCC
or Climate Convention) and to the UNECE Convention on Long-Range Transboundary
Air Pollution (LRTAP Convention). Furthermore, a greenhouse gas emission inventory
is reported to the EU, due to the EU – as well as the individual member states –
being party to the Climate Convention. The Danish atmospheric emission inventories
are calculated by the Danish National Environmental Research Institute (NERI).
This annex provides a summary of the emission inventories for stationary combustion
reported to the Climate Convention and background documentation for the estimates.
Stationary combustion plants include power plants, district heating plants,
non-industrial and industrial combustion plants, industrial process burners, petroleum-refining
plants, as well as combustion in oil/gas extraction and in pipeline
compressors. Emissions from flaring in oil/gas production and from flaring carried
out in refineries are not covered by this annex.
This annex presents detailed emission inventories and time-series for emissions from
stationary combustion plants. Furthermore, emissions from stationary combustion
plants are compared with total Danish emissions. The methodology and references
for the emission inventories for stationary combustion plants are described. Furthermore,
uncertainty estimates are provided.
2 Methodology and references
The Danish emission inventory is based on the CORINAIR (CORe INventory on AIR
emissions) system, which is a European program for air emission inventories. CORI-
NAIR includes methodology structure and software for inventories. The methodology
is described in the EMEP/Corinair Emission Inventory Guidebook 3 rd
edition,
prepared by the UNECE/EMEP Task Force on Emissions Inventories and Projections
(EMEP/Corinair 2004). Emission data are stored in an Access database, from which
data are transferred to the reporting formats.
The emission inventory for stationary combustion is based on activity rates from the
Danish energy statistics. General emission factors for various fuels, plants and sectors
have been determined. Some large plants, such as power plants, are registered individually
as large point sources and plant-specific emission data are used.
2.1 Emission source categories
In the Danish emission database all activity rates and emissions are defined in SNAP
sector categories (Selected Nomenclature for Air Pollution) according the CORINAIR
system. The emission inventories are prepared from a complete emission database
based on the SNAP sectors. Aggregation to the sector codes used for the Climate
Convention is based on a correspondence list between SNAP and IPCC enclosed in
Appendix 3A-2.
The sector codes applied in the reporting activity will be referred to as IPCC sectors.
The IPCC sectors define 6 main source categories, listed in Table 3A-1, and a number
231