The reference and the sectoral approach in the new Energy Volume

Darío R. Gómez Comisión Nacional de Energía Atómica Argentina

Energy Volume – IPCC approved

• Introduction • Reference Approach • Stationary Combustion • Mobile Combustion • Mining, Production and Transport of Fuels

Reference Approach

• Based on energy supply statistics • Check that all fuel carbon has been accounted for • No need to reproduce the same value as the SA • Understand/report why it produces a different value An independent second opinion with respect to the Sectoral Approach Clearer guidance on the assessment of the differences • Only estimate of CO 2 fuel combustion emissions from Not Good Practice for national estimates of CO 2

CO

2

and non-CO

2 • When a fuel is burned all the emissions are produced at the same time • The separate treatment is a left-over of early GHG inventory methods • • Integrate the estimation of CO 2 , CH 4 and N 2 O For Tiered methods of the Sectoral Approach, fuel combustion amounts are the key statistics

Non-energy use

• Energy related emissions are emissions associated with ○ ○ the extraction and production of fuel for any use the use of fuel to produce useful energy • By definition the non-energy use of fuels should not be dealt with by the Sectoral Approach in the Energy sector but in the Industrial Process and Product Use sector (IPPU) • Activity data for fuel combustion exclude quantities of fuels used as feedstock and for other non-energy purposes • Boundary between energy related, non-energy related and waste sector emissions ○ Non-energy related emissions are all other emissions from industrial process and product use except those covered by the waste sector

Tiered Approach

•

Emission gas, fuel = Combustion gas, fuel x Emission Factor gas, fuel

• Tier 1 ○ Data on the amount of fuel combusted in the source category ○ A default emission factor as given in the 2006 Guidelines • Tier 2 ○ Data on the amount of fuel combusted in the source category ○ A country specific emission factor for the source category • Tier 3 ○ Data on the amount of fuel combusted in the source category for each relevant technology ○ A specific emission factor for each technology

Evolutionary approach

• 1996 Guidelines

Reference Approach CO 2 Tier 1 CO 2

• 2006 Guidelines

Tier 1 CO 2 , CH 4 , N 2 O Reference Approach CO 2 Tier 1 non-CO 2