Report - DCE - Nationalt Center for Miljø og Energi

emission from electricity and heat production due to installation of low NOx
burners, selective catalytic reduction (SCR) units and selective non-catalytic
reduction (SNCR) units The fluctuations in the time series follow the fluctuations
in electricity and heat production, which, in turn, result from electricity
trade fluctuations.
ÃÃÃÃÃÃÃÃÃÃ Ã
ÃÃ
1A4b
Residential
16%
1A4c Agriculture
/ Forestry /
Fisheries
2%
ÃÃÃÃÃÃÃ Ã
ÃÃÃÃ Ã 1A4a
ÃÃÃÃÃ Ã
Commercial /
Institutional
ÃÃÃÃÃ Ã
2%
ÃÃÃ Ã
1A2 Industry
14%
ÃÃÃ Ã
ÃÃÃ Ã 1A1c Other
Ã
energy industries
à 16%
ÃÃÃÃÃÃÃÃÃÃÃÃÃ
NO x, Gg
180
160
140
120
100
80
60
40
20
0
1990
1991
1992
1993
1994
1995
1996
1997
Total
1A1a Public electricity and heat production 1A1b Petroleum refining
1A1c Other energy industries 1A2 Industry
1A4a Commercial / Institutional 1A4b Residential
1A4c Agriculture / Forestry / Fisheries Total
ÃÃÃÃ ÃÃÃÃÃÃÃ
1998
1999
2000
2001
2002
2003
2004
2005
1A1b Petroleum
refining
4%
2006
2007
1A1a Public
electricity and
heat production
46%
/70$
Stationary combustion plants account for 21 % of the national NMVOC
emission. Table 3.7 presents the NMVOC emission inventory for the stationary
combustion subcategories.
Residential plants are the largest emission source accounting for 81 % of the
emission from stationary combustion plants. For residential plants NMVOC
is mainly emitted from wood and straw combustion, see Figure 3.11.
Electricity and heat production is also a considerable emission source, accounting
for 13 % of the emission. Lean-burn gas engines have a relatively
high NMVOC emission factor and are the most important emission source in
this subcategory (see Figure 3.11). The gas engines are either natural gas or
biogas fuelled.
Time series for NMVOC emission from stationary combustion are shown in
Figure 3.12. The emission has increased by 32 % from 1990. The increased
emission is mainly a result of the increasing wood consumption in residential
plants and of the increased use of lean-burn gas engines in CHP plants.
2008
2009
2010