Report - DCE - Nationalt Center for Miljø og Energi

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Denmark’s air emission inventories are based on the Revised 1996 Intergovernmental
Panel on Climate Change (IPCC) Guidelines for National Greenhouse
Gas Inventories (IPCC, 1997), the Good Practice Guidance and Uncertainty
Management in National Greenhouse Gas Inventories (IPCC, 2000)
and the CORINAIR methodology. CORINAIR (COoRdination of INformation
on AIR emissions) is a European air emission inventory programme for
national sector-wise emission estimations, harmonised with the IPCC guidelines.
In 2009 the EMEP/CORINAIR Guidebook changed name to the
EMEP/EEA Guidebook. In this change the Guidebook switched nomenclature
from SNAP to NFR.
The Danish inventory is prepared at the more detailed SNAP level rather
than at the NFR level that is only suitable for reporting. To ensure estimates
are as timely, consistent, transparent, accurate and comparable as possible,
the inventory programme has developed calculation methodologies for most
subsectors and software for storage and further data processing.
A thorough description of the CORINAIR inventory programme used for
Danish emission estimations is given in Illerup et al. (2000). The CORINAIR
calculation principle is to calculate the emissions as activities multiplied by
emission factors. Activities are numbers referring to a specific process generating
emissions, while an emission factor is the mass of emissions pr unit activity.
Information on activities to carry out the CORINAIR inventory is
largely based on official statistics. The most consistent emission factors have
been used, either as national values or default factors proposed by international
guidelines.
A list of all subsectors at the most detailed level is given in Illerup et al.
(2000) together with a translation between CORINAIR and IPCC codes for
sector classifications.
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Stationary combustion plants are part of the CRF emission sources 1A1 Energy
Industries, 1A2 Manufacturing Industries and 1A4 Other sectors.
The Danish emission inventory for stationary combustion plants is based on
the former CORINAIR system. In 2009 the Emission Inventory Guidebook
was updated (EMEP/EEA, 2009). 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.
The fuel consumption rates are based on the official Danish energy statistics
prepared by the Danish Energy Agency (DEA). DCE aggregates fuel consumption
rates to SNAP categories. The fuel consumption of the NFR category
1A4 Manufacturing industries and construction is disaggregated to
subsectors according to the DEA data prepared and reported to Eurostat.
For each of the fuel and SNAP categories (sector and e.g. type of plant), a set
of general emission factors has been determined. Some emission factors refer
to the EMEP/EEA Guidebook and some are country specific and refer to