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

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− Gruijthuijsen & Jensen 2000<br />

− Danish Gas Technology Centre 2001<br />

• Calculations based on plant-specific emissions from a considerable number of power plants<br />

(Nielsen 2004).<br />

• Calculations based on plant-specific emission data from a considerable number of municipal<br />

waste incineration plants. These data refer to annual environmental reports published by plant<br />

operators.<br />

• Sulphur content data from oil companies and <strong>the</strong> Danish gas transmission company.<br />

• Additional personal communication.<br />

Emission factor time-series have been estimated for a considerable number of <strong>the</strong> emission factors.<br />

These are provided in Annex 3A.<br />

SO 2 and NO X emissions from large point sources are often plant specific based on emission measurements.<br />

Emissions of CO and NMVOC are also plant specific for some plants.<br />

3.2.2.5 Disaggregation to specific industrial subsectors<br />

The national statistics on which <strong>the</strong> emission inventories are based do not include a direct disaggregation<br />

to specific industrial subsectors. However, separate national statistics from Statistics<br />

Denmark include a disaggregation to industrial subsectors. This part of <strong>the</strong> energy statistics is also<br />

included in <strong>the</strong> official energy statistics from <strong>the</strong> Danish Energy Authority.<br />

Every o<strong>the</strong>r year Statistics Denmark collects fuel consumption data for all industrial companies of<br />

a considerable size. The deviation between <strong>the</strong> total fuel consumption from <strong>the</strong> Danish Energy<br />

Authority and <strong>the</strong> data collected by Statistics Denmark is ra<strong>the</strong>r small. Thus <strong>the</strong> disaggregation to<br />

industrial subsectors available from Statistics Denmark can be applied for estimating disaggregation<br />

keys for fuel consumption and emissions.<br />

The industrial fuel consumption is considered in three aspects:<br />

− Fuel consumption for transport. This part of <strong>the</strong> fuel consumption is not disaggregated to subsectors.<br />

− Fuel consumption applied in power or district heating plants. Disaggregation of fuel and emissions<br />

is plant specific.<br />

− Fuel consumption for o<strong>the</strong>r purposes. The total fuel comsumption and <strong>the</strong> total emissions are<br />

disaggregated to subsectors.<br />

All pollutants included in <strong>the</strong> Climate Convention reporting have been disaggregated to industrial<br />

subsectors.<br />

3.2.3 Uncertainties and time-series consistency<br />

Time-series for fuel consumption and emission are shown and discussed in Chapter 3.2.1.2 and<br />

3.2.1.3.<br />

Uncertainty estimates include uncertainty with regard to <strong>the</strong> total emission inventory as well as<br />

uncertainty with regard to trends. The GHG emission from stationary combustion plants has been<br />

estimated with an uncertainty interval of ±11% and <strong>the</strong> increase in <strong>the</strong> GHG emission since 1990<br />

has been estimated to be 11,1% ± 1,7 %-age-points.<br />

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