II. ENERGY

B. Reference and sectoral approaches

1. Comparison of the reference approach with the sectoral approach and international statistics

27. Ukraine provided estimates for the reference approach for the years 1990 and 1998­–2004. The NIR also provides a discussion of the comparison between the reference and the sectoral approaches. The ERT also noted that the differences between the two approaches on energy consumption were calculated incorrectly as the apparent energy consumption used for the reference approach included non-energy use and feedstocks consumption data (for 2004 the difference is 11.0 per cent for the CO₂ emission estimates and 40.5 per cent from fuel consumption).

28. The differences that remain between the reference and the sectoral approaches when the above is taken in consideration, for example, for 2004, might be due to mistakes in the underlying statistical forms. The ERT recommends that Ukraine complete the time-series of estimations using the reference approach for its next submission and to further investigate the differences reported and reduce the gap between these two approaches, particularly in fuel consumption. The ERT also recommends that in the future Ukraine perform additional QC checks to ensure that such mistakes are avoided and that the information contained in the statistical forms is properly scrutinized before it is used for any calculations.

29. The data reported in the CRF tables are in certain cases significantly different from those reported to the IEA. This is the case, for example, for jet kerosene consumption in aviation. The ERT recommends that Ukraine further research and identify the potential sources of these discrepancies, identify potential additional sources of information, and review its calculations as necessary in its next submission.