# Commission Delegated Regulation (EU) 2019/331 of 19 December 2018 determining transitional Union-wide rules for harmonised free allocation of emission allowances pursuant to Article 10a of Directive 2003/87/EC of the European Parliament and of the Council (Text with EEA relevance), Division 4.5: Selecting data sources for quantification of energy flows

Extent: E+W+S+N.I.

The following generic data sources shall be used for selecting most accurate available data sources quantifying amounts, expressed as TJ or GWh, of measurable heat or electricity entering or leaving the installation, or any sub-installation:
(a)Readings of measuring instruments that comply with the Non-automatic Weighing Instruments Regulations 2016 or the Measuring Instruments Regulations 2016 for direct determination of a data set;
(b)Readings of measuring instruments under the operator's control for direct determination of a data set not falling under point a;
(c)Readings of measuring instruments not under the operator's control for direct determination of a data set not falling under point a;
(d)Readings of measuring instruments for indirect determination of a data set, provided that an appropriate correlation between the measurement and the data set in question is established in line with section 3.4 of this Annex;
(e)Calculation of a proxy for the determining net amounts of measurable heat in accordance with method 3 of section 7.2;
(f)Other methods, in particular for historical data or where no other data source can be identified by the operator as available.
For selecting data sources for the purpose of Article 7(1), only the data source referred to in point (a) of the first paragraph is considered representing most accurate data sources. The data sources referred to in points (b) to (f) of the first paragraph are considered less accurate in the descending hierarchical order from point (b) to point (f).
For situations where no information is available for some parameters (such as temperature and amount of condensate returned) required to determine net flows of measurable heat, the provisions of section 7 are to be applied. In accordance with section 7, several parameters need to be determined in order to result in annual net amounts of measurable heat. Therefore the overall result for the annual net amount of heat should be considered the purpose of the simplified uncertainly assessment in accordance with point (c) of Article 7(2) for the for selection of the methods referred to in points (b) to (f) of the first paragraph when deviating from the selection of data sources representing most accurate data sources.

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Source: https://www.legislation.gov.uk/eur/2019/331/annex/VII/division/4/division/4.5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-331/annex-VII/division-4/division-4.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.