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International Standard Industrial Classification of All Economic Activities

explains how IRES uses ISIC Rev. 4 to classify energy industries, consumers, and statistical units, including the Table 5.1 and 5.3 correspondences and Chapter VI kind-of-activity coding

International Standard Industrial Classification of All Economic Activities (ISIC)

ISIC is a standard international classification of economic activities, consulted alongside the Central Product Classification (CPC) and the Harmonized Commodity Description and Coding System (HS) as part of IRES’s effort to harmonize energy-statistics concepts with other standard international classifications [IRES, Ch. I, para. 1.13, PDF p. 16, 2018]. Chapter V uses ISIC Rev. 4 (division/group/class level) as the reference classification for mapping energy-related economic activity: it identifies which ISIC categories correspond to each of the energy industries listed in Table 5.1 [IRES, Ch. V, para. 5.26, PDF p. 72, 2018].

Role in Chapter V

Table 5.1 cross-references all eighteen energy-industry categories — from electricity/CHP/heat plants through oil refineries to nuclear fuel extraction — to their corresponding ISIC Rev. 4 division, group or class [IRES, Ch. V, Table 5.1, PDF p. 72, 2018]. IRES notes that Table 5.1 considers a broader definition of energy industries than the core principal-activity test in para. 5.23, since it also includes plants (such as blast furnaces) for which the main activity is not itself energy-related but which is conveniently identified by an ISIC category all the same [IRES, Ch. V, para. 5.26, PDF p. 72, 2018].

Role in Chapter VI

ISIC Rev. 4 also anchors the kind of activity characteristic (data item 0.3) in Chapter VI’s reference list of statistical-unit characteristics: the national activity classification used to record a unit’s kind of activity is recommended to be based on, or correlated with, ISIC Rev. 4 [IRES, Ch. VI, para. 6.30, PDF pp. 89–90, 2018]. Chapter VI’s illustrative four-company oil-corporation example also identifies each company’s activity by ISIC Rev. 4 group (crude oil extraction, Group 061; pipeline transport, Group 493; three-way refining plus a minor electricity-generation secondary activity, Group 351; retail sale of motor gasoline and diesel, Group 473, with a secondary retail activity, Group 471) [IRES, Ch. VI, paras 6.14–6.15, PDF pp. 86–87, 2018]. See Statistical Unit Characteristics and Statistical Units for full detail.

confidence: medium — this page currently covers only ISIC’s role as used within Chapter V (energy industries) and Chapter VI (statistical-unit characteristics, illustrative example); its custodianship, revision history and general classification structure are not yet drawn from the source and may be expanded once a chapter that treats ISIC more directly (e.g. Chapter V’s own Table 5.3 of energy consumers) is ingested.

The Chapter V energy-flow and energy-industries material that puts ISIC to work is itself the product of InterEnerStat, reviewed and supported by the Oslo Group on Energy Statistics and the Expert Group on Energy Statistics [IRES, Ch. V, para. 5.9, PDF p. 69, 2018].

ISIC is also closely related to the System of National Accounts (SNA 2008): Box 5.1’s principal/secondary/ancillary activity definitions, quoted from SNA 2008 and used to distinguish energy industries from other energy producers, are in practice applied to economic units classified by ISIC Rev. 4 — the same classification Table 5.1 cross-references and Chapter VI’s kind-of-activity characteristic is based on [IRES, Ch. V, Box 5.1, PDF p. 72, 2018; IRES, Ch. VI, para. 6.30, PDF pp. 89–90, 2018].

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