BOX 9. RECALCULATION DUE TO NEW INFORMATION ON THE EMISSION FACTOR The local authority had used the standard emission factor provided in Table 4 to estimate the base year emissions from coal combustion in a local district heating plant. The emission factor was 0.341 t CO 2 /MWh. In the monitoring year, the local authority asked the coal provider to give information on the carbon content and thus the emission factor, <strong>of</strong> the coal type provided. The coal provider informed the local authority that the emission factor <strong>of</strong> that coal type is 0.335 t CO 2 /MWh, and that the same coal type has been provided to the city since many years. If the local authority started to use the new emission factor only since the MEI, it would gain benefit, as estimated emissions would be lower than in BEI even if the same amount <strong>of</strong> fuel would be used. Therefore, the local authority has to recalculate the BEI using the same emission factor that will be used in the MEI. 30
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