1. Setting the scene: GHG inventories
Workshop on data consistency between national GHG inventories and EU ETS
Bernd Gugele, ETC-ACC
9 February 2006

2. Linkages between GHG inventories and ETS data
Quality of GHG inventories
Importance of having point source data for improving the inventory quality
Inventory system
Importance of consistency between energy balance and GHG inventory
UNFCCC Review
Importance of addressing consistency
Base year issue/time series

3. Improving the quality of GHG inventories
Assess accurately progress towards Kyoto
Avoid adjustments under UNFCCC review
Key EC activities for improving quality of GHG inventories:
Eurostat energy harmonisation project
Organise workshops
Consistency between energy and GHG inventories
Aviation and navigation
Agriculture
LUCF
Waste
QA/QC
Uncertainties
Consistency between GHG inventories and ETS data

4. ETS and quality of GHG inventories (1)
Top-down versus bottom-up
GHG inventories are top-down
Limited use of bottom-up data
Higher Tier methods require plant specific information
Bottom-up data can be used
Directly in the inventory
Verification

5. Matching ETS to IPCC sectors
ETS sector
IPCC category
Energy related emissions
Process emissions
Total Allocation
1.A.1 Energy industries 1.A.2 Combustion in industry
2.A Mineral Products 2.C.1 Iron & Steel Production 2.C.2 Ferroalloys Production
E1 Combustion >20 MW
1.A.1.a Public elect. & heat production 1.A.2 Combustion in industry
E2 Refineries
1.A.1.b Petroleum Refining 1.B.2.c Venting & Flaring
E3 Coke ovens
1.A.1.c Manufacture of solid fuels
1.B.1.b
F1 Metal ore roasting or sintering
2.C.5 Other
F2 Iron & Steel production
1.A.2.a Iron & Steel
2.C.1 Iron & Steel Production
M1 Cement & lime
 1.A.2.f Other
2.A.1 Cement Production 2.A.2 Lime Production
M2 Glass
1.A.2.f Other 
2.A.7 Other Industries
M3 Ceramic
O1 Pulp
1.A.2.d Pulp, Paper Print
2.D.1 Pulp and Paper
O2 Paper

6. ETS and quality of GHG inventories (2)
Transparency
Clearly explain assumptions and methodologies used for inventory compilation
Explain in the NIR how consistency between GHG inventories and ETS data is achieved
Consistency
Consistent use of data sets and methods across all years (time series consistency)
Challenge for the base year
Comparability
Comparable across Parties by using agreed methodologies and formats
Improves if more detailed data allows better allocation to sub-categories

7. ETS and quality of GHG inventories (3)
Completeness
Cover all sources and sinks, as well as all gases, included in IPCC Guidelines;
Full geographical coverage
Improves if new sources are discovered
Accuracy
Estimates should systematically neither over nor under estimate true emissions
Reduce uncertainties as far as practicable
Use appropriate methodologies
Improves if more accurate activity data/calorific values/emission factors/emissions become available for certain fuels/sources
Timeliness
Improves because ETS data becomes available well in advance of the deadlines for GHG inventories

8. ETS and inventory system: Links between inventory and energy data
Need for consistent data sets in order to trust the data
Eurostat energy harmonisation project

9. ETS and UNFCCC review
Convincing answers needed for consistency between GHG inventory and ETS data
In case of failure of addressing data consistency
Question quality of GHG inventories
Trigger questions during the UNFCCC review
May lead to adjustments
This year is crucial for fixing the base year
Reviewers will focus on base year/time series consistency
Need for recalculations

10. Thank you for your attention!