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

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

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

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

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

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

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

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

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

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