Report - DCE - Nationalt Center for Miljø og Energi

Fuel consumption, PJ
Fuel consumption, PJ
800
700
600
500
400
300
200
100
0
1990
1992
1994
1996
1A1a Electricity and heat production 1A1b Petroleum refining
1A1c Energy industries 1A2 Industry
1A4a i Commercial/Institutional plants 1A4b i Residential plants
1A4c i Agriculture/Forestry/Fishing, Stationary TOTAL
800
700
600
500
400
300
200
100
0
1990
1991
1992
1993
1994
1995
1996
1997
TOTAL
1998
1998
1999
BIOMASS FOSSIL WASTE GAS LIQUID SOLID
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The fluctuations in the time series for fuel consumption are mainly a result
of electricity import/export, but also of outdoor temperature variations from
year to year. This, in turn, leads to fluctuations in emission levels. The fluctuations
in electricity trade, fuel consumption and NOx emission are illustrated
and compared in Figure 3.4. In 1990, the Danish electricity import was
large causing relatively low fuel consumption, whereas the fuel consumption
was high in 1996 due to a large electricity export. In 2010, the net electricity
export was 4.1 PJ, whereas there was a 1.2 PJ electricity import in
2009. The large electricity export that occurs some years is a result of low
rainfall in Norway and Sweden causing insufficient hydropower production
in both countries.
To be able to follow the national energy consumption as well as for statistical
and reporting purposes, the Danish Energy Agency produces a correction
of the actual fuel consumption without random variations in electricity
imports/exports and in ambient temperature. This fuel consumption trend
is also illustrated in Figure 3.4. The corrections are included here to explain
the fluctuations in the time series for fuel rate and emissions.
2000
2000
2001
2002
2002
2003
2004
2004
2005
2006
2006
2007
2008
2008
2009
2010
2010