Table 45 List of external data sources.
Data Storage level 1
1. Accuracy DS.1.1.1 General level of uncertainty for every dataset including the reasoning for the specific values
Since the DEA are responsible for the official Danish energy statistics as well as reporting to the IEA, NERI regards the data as being complete and in accordance with the official Danish energy statistics and IEA re-porting. The uncertainties connected with estimating fuel consumption do not, therefore, influence the accordance between IEA data, the
en-Dataset Description AD or Emf. Reference Contact(s) Data agreement/
Comment Energiproducenttællingen.xls Data set for all
elec-tricity and heat pro-ducing plants.
Activity data The Danish Energy Agency (DEA)
Peter Dal Data agreement in place Gas consumption for gas
en-gines and gas turbines 1990-1994
Activity data DEA Peter Dal No data agreement.
Historical data Basic data (Grunddata.xls) Data set used for
IPCC reference approach
Activity data DEA Peter Dal Not necessary. Pub-lished as part of na-tional energy statistics Energy statistics The Danish energy
statistics on SNAP level
Activity data DEA Peter Dal Data agreement in place
SO2 & NOx data, plants>25 MWe Emissions DEA Marianne Nielsen No data agreement in place
Emission factors Emission factors stems from a large number of sources
Emission factors
See chapter re-garding emission factors
HM and PM from public power plants
Emissions from the two large power plant operator in DK Elsam & E2
Emissions Dong Energy Vattenfall
Marina Snowman Møller,
Heidi Demant
No formal data agreement in place
Environmental reports Emissions from plants defined as large point sources
Emissions Various plants No data agreement necessary.
Plants are obligated by law.
EU ETS data Plant specific CO2
emission factors
Emission factors
DEA Dorte Maimann
Helen Falster
Plants are obligated by law. The avialability of detailed information is part of a future data agreement with DEA.
Additional data Fuel consumption and emissions from large industrial plants
AD & emis-sions
Aalborg Portland Statoil
Shell
Henrik M. Thomsen Peder Nielsen Lis R. Rasmussen
No formal data agreement in place
remainder of the datasets, it is assumed that the level of uncertainty is relatively low. For further comments regarding uncertainties, see Chapter 14.
Data Storage level 1
1. Accuracy DS.1.1.2 Quantification of the uncertainty level of every single data value including the rea-soning for the specific values.
The uncertainty for external data is not quantified. The uncertainties of activity data and emission factors are quantified see Chapter 14.
Data Storage level 1
2.Comparability DS.1.2.1 Comparability of the data values with simi-lar data from other countries, which are comparable with Denmark, and evaluation of discrepancy.
On the external data the comparability has not been checked. However, at CRF level a project has been carried out comparing the Danish in-ventories with those of other countries (Fauser et al. 2007).
Data Storage level 1
3.Completeness DS.1.3.1 Documentation showing that all possible national data sources are included by setting up the reasoning for the selection of datasets.
See the above Table 45 for an overview of external datasets.
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A spreadsheet from DEA is listing fuel consumption of all plants in-cluded as large point sources in the emission inventory. The statistic on fuel consumption from district heating and power plants is regarded as complete and with no significant uncertainty since the plants are bound by law to report their fuel consumption and other information.
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For the years 1990-1994 DEA has estimated consumption of natural gas and biogas in gas engines and gas turbines. NERI assesses that the es-timation by the DEA are the best available data.
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A spreadsheet from DEA is used for the CO2 emission calculation in accordance with the IPCC reference approach. It is published annually on DEA’s webpage; therefore, a formal data delivery agreement is not deemed necessary.
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The DEA reports fuel consumption statistics on SNAP level based on a correspondence table developed in co-operation with NERI. Both traded and non-traded fuels are included in the Danish energy statis-tics. Thus, for example, estimation of the annual consumption of non-traded wood is included. Petroleum coke, purchased abroad and com-busted in Danish residential plants (border trade), is added to the
ap-Emissions from non-energy use of fuels have been included in other source categories of the Danish inventory. The non-energy use of fuels is, however, included in the reference approach for Climate Conven-tion reporting.
62DQG12[HPLVVLRQGDWDIURPHOHFWULFLW\SURGXFLQJSODQWV!0:H Plants larger than 25 MWe are obligated to report emission data for SO2
and NOx to the DEA annually. Data are on block level and classified.
The data on plant level are part of the plants annually environmental reports. NERI’s QC of the data consists of a comparison with data from previous years and with data from the plants’ annual environmental reports.
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For specific references, see the chapter regarding emission factors.
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The two major Danish power plant operators assess heavy metal emis-sions from their plants using model calculations based on fuel data and type of flue gas cleaning. NERI’s QC of the data consists of a compari-son with data from previous years and with data from the plants’ an-nual environmental reports.
$QQXDOHQYLURQPHQWDOUHSRUWVIURPSODQWVGHILQHGDVODUJHSRLQWVRXUFHV A large number of plants are obligated by law to publish an annual en-vironmental report with information on, among other things, emis-sions. NERI compares the data with those from previous years and large discrepancies are checked.
6XSSOHPHQWLQJGDWDIURPODUJHLQGXVWULDOFRPEXVWLRQSODQWV
Fuel consumption and emissions from a few large industrial combus-tion plants are obtained directly from the plants. NERI compares the data with those from previous years and large discrepancies are checked.
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EU ETS data are information on fuel consumption, heating values, car-bon content of fuel, oxidation factor and CO2 emissions. NERI receives the verified reports for all plants with a detailed estimation methodol-ogy. NERI’s QC of the received data consists of comparing to calcula-tion using standard emission factors as well as comparing reported values with those for previous years.
Data Storage level 1
4.Consistency DS.1.4.1 The origin of external data has to be pre-served whenever possible without explicit arguments (referring to other PM’s)
It is ensured that all external data are archived at NERI. Subsequent data processing takes place in other spreadsheets or databases. The datasets are archived annually in order to ensure that the basic data for a given report are always available in their original form.
Data Storage level 1
6.Robustness DS.1.6.1 Explicit agreements between the external institution of data delivery and NERI about the condition of delivery
For stationary combustion a data delivery agreement is made with the DEA. Most of the other external data sources are available due to legis-latory requirements. See Table 45.
Data Storage level 1
7.Transparency DS.1.7.1 Summary of each dataset including the reasoning for selecting the specific dataset
See DS 1.3.1
Data Storage level 1
7.Transparency DS.1.7.3 References for citation for any external data set have to be available for any single num-ber in any dataset.
See Table 45 for general references. Much documentation already ex-ists. However, some of the information used is classified and therefore not publicly available.
Data Storage level 1
7.Transparency DS.1.7.4 Listing of external contacts for every dataset
See Table 45.