REVIEW REPORT FOR NEW ZEALAND (EXAMPLE)

B. Reference and sectoral approaches
1. Comparison of the reference approach with the sectoral approach and international statistics
27. In 2004, the CO₂ emissions estimated in the sectoral approach are 1.4 per cent less than those estimated in the reference approach. By type of fuel, the differences are 0.9 per cent for liquid fuels, –4.4 per cent for solid fuels, and 7.4 per cent for gaseous fuels. However, the differences in energy consumption are larger and all positive: 9.9 per cent for liquid fuels, 25.9 per cent for solid fuels, and 35.8 per cent for gaseous fuels. Explanations are provided in the CRF tables and the NIR provides explanations on annual fluctuations in the differences between the two approaches for the period 1990–2004. The ERT recommends that further efforts be made to reconcile the methods used in estimating AD.

2. International bunker fuels
28. The allocation of fuel consumption between domestic and international transport is based on the data of fuel consumption by international transport reported in the Energy Data File (September 2006 edition), which reports coastal shipping and national air transport under domestic transport. The NIR reports that the distinction between domestic and international flights is based on refuelling at the domestic and international terminals of New Zealand airports and that there is no basis to split the domestic and international components of fuels used for international flights with a domestic leg. Although the AD associated with the domestic legs of these international flights is considered to be negligible, during the in-country visit New Zealand started consultations with the airlines to clarify this situation and assess the order of magnitude of the AD. It is recommended that New Zealand make efforts to clarify the allocation of fuel consumption in accordance with the IPCC good practice guidance.