Air Quality Governance in the ENPI East Countries
Training on emission inventories
Systems for calculating emissions
11-12 December, 2013, Tbilisi, Georgia
Outline
• Internationally available tools
– CollectER III
– IPCC Inventory Software
• Simple vs. complex systems
– Spreadsheet models
– Database models
• Where and how to start…
Internationally available tools
• There are currently two main applications available: IPCC inventory
software and CollectER
• The IPCC software is designed for greenhouse gas emissions and
incorporate emission factors (EFs) from the 2006 IPCC Guidelines
• The CollectER software is designed for air pollution emission
inventories but does not incorporate EFs
• The CollectER tool is designed to help national experts on air
emissions to collect the relevant air emission data for delivery to
the European Commission and to international conventions
• The tool has been developed over the last 20 years, originally as a
dBase oriented system CORINAIR94, and later as an integrated set
of MS Windows tools. All tools are available free of charge from the
ETC-ACC web site at: http://etcacc.eionet.eu.int/tools
CollectER III
• The CollectER / ReportER emission inventory
software tools are developed by European
Environment Agency (EEA) and its European Topic
Centre on Air and Climate Change (ETC-ACC) since
the year 1998
• The reporting requirements for two conventions NFR
of UNECE/CLRTAP and UNFCCC CRF are supported by
the reporting part of the software tools
• Software and instructions are available through the
Eionet website:
http://acm.eionet.europa.eu/country_tools/ae/Colle
ctER_III.html
IPCC Inventory Software
• The purpose of the software is to implement Tier 1
and Tier 2 methodologies in the 2006 IPCC
Guidelines for the preparation of national GHG
inventories either for complete inventories or for
separate categories or groups of categories
• The primary target groups of users include inventory
compilers who wish to apply default 2006 IPCC
Guideline methods and Parties not included in Annex
I of the Convention having limited resources without
their own inventory systems
• The software and the user manual is available at the
IPCC website: http://www.ipccnggip.iges.or.jp/software/
Simple vs. complex systems
• There are a number of things to take into account
– The amount of data
– Number of users/experts involved
– Complexity of the inventory
• Point source data
• Models for calculating emissions
– Easy conversion to the reporting formats
• Starting point depends on available resources and
level of ambition
• It is wise to start simple and the system can then
grow in complexity as experience is gathered and the
need grows for a more comprehensive inventory
Spreadsheet models
• Advantages
– Simple structure allows for quick building of models
– Easy to use
– Easy to share between experts
• Disadvantages
– Difficult for modelling large datasets
– Error prone if complex
– Difficult to handle multi-dimension datasets
Database models
• Advantages
– The defined structure and calculation queries limits the
possibility for errors
– Easy to handle large amounts of data
– Possible for easy transfer to reporting formats
– Possible for multiple experts to work at the same time
• Disadvantages
– Requires competences in database design for developers
– Requires enhanced skills from the users
Where and how to start…
• Consider using submodels for different
sectors/source categories
• For less complex sources use a spreadsheet model
• For complex sources a database could be
advantageous
• For compiling a central emission system consider
the available international tools
• Involve an IT/database expert – it saves a lot of
time and money in the end!
Questions
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How many are familiar with the CollectER system?
How many are familiar with the IPCC software?
Who currently uses spreadsheet model(s)?
Who currently uses database model(s)?
What are the challenges in terms of the data tools
for estimating and reporting emissions?
Thank you for your attention