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For any question on data and metadata, please contact: EUROPEAN STATISTICAL DATA SUPPORT |
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1.1. Contact organisation | Statistical Office of the Republic of Slovenia. |
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1.2. Contact organisation unit | Environment and Energy Statistics Section. |
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1.5. Contact mail address | Litostrojska cesta 54, SI-1000 Ljubljana |
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2.1. Metadata last certified | 29/09/2023 | ||
2.2. Metadata last posted | 29/09/2023 | ||
2.3. Metadata last update | 29/09/2023 |
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3.1. Data description | |||
Physical energy flow accounts (PEFA) is one module of the European environmental-economic accounts - Regulation (EU) 691/2011 Annex VI. PEFA record the flows of energy (in terajoules) from the environment to the economy (natural inputs), within the economy (products), and from the economy back to the environment (residuals), using the accounting framework of physical supply and use tables. PEFA provide information on energy flows arranged in a way fully compatible with concepts, principles, and classifications of national accounts – thus enabling integrated analyses of environmental, energy and economic issues e.g. through environmental-economic modelling. PEFA complement the traditional energy statistics, balances and derived indicators which are the main reference data source for EU energy policies.
The PEFA questionnaire is available on Eurostat's website: https://ec.europa.eu/eurostat/web/environment/methodology |
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3.2. Classification system | |||
Physical energy flow accounts (PEFA) datasets have the following dimensions:
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3.3. Coverage - sector | |||
The data set covers the entire national economy as defined in national accounts (ESA 2010, paragraph 2.04), as well as its physical relation to economies in the rest of the world and the environment.
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3.4. Statistical concepts and definitions | |||
Physical energy flow accounts (PEFA) are conceptually rooted in the System of Environmental-Economic Accounting (SEEA) which is an international statistical standard. The SEEA central framework provides standard concepts, definitions, classifications, accounting rules and tables for the provision of statistics on the environment and its relationship with the economy. |
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3.5. Statistical unit | |||
Data refer to activities of resident economic units in the sense of SEEA CF 2012 and national accounts (ESA), including households. |
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3.6. Statistical population | |||
The national economy is as defined in SEEA CF 2012 and national accounts (ESA); i.e. all economic activities undertaken by resident units (see ESA 2010, paragraph 2.04). A unit is said to be a resident unit of a country when it has a centre of economic interest in the economic territory of that country, that is, when it engages for an extended period (1 year or more) in economic activities in that territory. |
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3.7. Reference area | |||
The reference area is the economic territory as defined in SEEA CF 2012 and National Accounts (ESA). A unit is said to be a resident unit of a country when it has a centre of economic interest in the economic territory of that country, that is, when it engages for an extended period (1 year or more) in economic activities in that territory. |
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3.8. Coverage - Time | |||
Data are available for the following time period: 2008-2021 |
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3.9. Base period | |||
Not applicable. |
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The unit of measure is terajoule (TJ). |
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The data refer to the calendar year. |
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6.1. Institutional Mandate - legal acts and other agreements | |||
PEFA are legally covered by Regulation (EC) No. 691/2011 on European environmental economic accounts as amended by Regulation (EU) No. 538/2014. EEEA currently include six modules (air emissions accounts, environmentally related taxes by economic activity, economy-wide material flow accounts, environmental protection expenditure accounts, environmental goods and services sector accounts, and physical energy flow accounts). |
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6.2. Institutional Mandate - data sharing | |||
Not applicable. |
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7.1. Confidentiality - policy | |||
Information on national confidentiality rules: http://www.stat.si/statweb/en/FundamentalPrinciples/StatConf |
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7.2. Confidentiality - data treatment | |||
Energy use in NACE U99 are reported under NACE H49, since the number of units is lower then 3 (national rules). |
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8.1. Release calendar | |||
Data are published anually (before data are reported to Eurostat). Release calendar is prepared at the end of every calendar year for the next calendar year. |
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8.2. Release calendar access | |||
Release calendar is publicly available via the following link (in English): https://www.stat.si/StatWeb/en/ReleaseCal |
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8.3. Release policy - user access | |||
Data tables are disseminated every year on SIStat database, general data information are given in a form of a First Release (short article) on SURS's web page. All data are publicly available. |
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Data are disseminated annually. |
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10.1. Dissemination format - News release | |||
First Releases are published on SURS's website according to the preannounced release calendar. Data tables are published on a same date on SIStat database. All data are publicly available. |
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10.2. Dissemination format - Publications | |||
PEFA data are publshed in the following formats: - First Release (short article, with only general data included) on SURS's website; - data tables on SiStat database. |
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10.3. Dissemination format - online database | |||
Data are published in national database and are publicly available: link |
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10.3.1. Data tables - consultations | |||
Will be calculated and provided by EUROSTAT. |
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10.4. Dissemination format - microdata access | |||
Not applicable. |
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10.5. Dissemination format - other | |||
PEFA data are mostly based on energy statistics data. Those data are available on SiStat national database and Eurostat database. |
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10.5.1. Metadata - consultations | |||
Will be calculated and provided by EUROSTAT. |
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10.6. Documentation on methodology | |||
Methodological explanationas are publicly availabe on SURS' website (also in English): link |
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10.6.1. Metadata completeness - rate | |||
Will be calculated and provided by EUROSTAT. |
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10.7. Quality management - documentation | |||
Quality reports are publicly availabe online: link |
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11.1. Quality assurance | |||
At the end of every survey (i.e. on annual level, if not determined otherwise), national quality report is prepared and disseminated on SURS' website. Quality guidelines are closely followed by all staff. Training courses, use of best practices (from other institutions, both domestic and foreign), self-assesments and other necessary processes are also a part of quality assurance framework within the unit and institution. |
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11.2. Quality management - assessment | |||
The current statistical outputs are estimated as optimal. Data collecting, processing and the dissemination process are verified. No quality improvements are planned in the near future, although they are not excluded. |
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12.1. Relevance - User Needs | |||
Data are freely available to general public. Users are researchers, students, governmental and non-governmental institutions, companies etc. |
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12.2. Relevance - User Satisfaction | |||
User satisfaction surveys are being carried out on an institutional level and not for this certain survey. Users can however directly contact the statistitian responsible for the survey (SURS's e-mail address and phone number are provided in SI-STAT database portal), but this is mostly used for data inquries. |
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12.3. Completeness | |||
The completeness according to relevant regulations/guideliness is 100%. |
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12.3.1. Data completeness - rate | |||
Will be calculated and provided by EUROSTAT. |
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13.1. Accuracy - overall | |||
Data are mostly based on national energy statistics data. Accuracy is ensured through close work with data providers and data checks within the NSO. |
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13.2. Sampling error | |||
Not applicable to statistical accounts. |
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13.2.1. Sampling error - indicators | |||
Not applicable to statistical accounts. |
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13.3. Non-sampling error | |||
Not applicable to statistical accounts. |
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13.3.1. Coverage error | |||
Not applicable to statistical accounts. |
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13.3.1.1. Over-coverage - rate | |||
Not applicable to statistical accounts. |
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13.3.1.2. Common units - proportion | |||
Not applicable to statistical accounts. |
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13.3.2. Measurement error | |||
Not applicable to statistical accounts. |
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13.3.3. Non response error | |||
Not applicable to statistical accounts. |
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13.3.3.1. Unit non-response - rate | |||
Not applicable to statistical accounts. |
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13.3.3.2. Item non-response - rate | |||
Not applicable to statistical accounts. |
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13.3.4. Processing error | |||
Not applicable to statistical accounts. |
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13.3.5. Model assumption error | |||
Not applicable to statistical accounts. |
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14.1. Timeliness | |||
Collection of data sources about 6 months prior to publication. Data are processed with PEFA tools (PEFA Builder and PEFA NACE Breakdown tool. Every year the entire time series (from 2008 onwards) is updated and the last year is added (T+21 months principle). PEFA data are published nationally before data are sent to Eurostat (usually cca. 2 weeks before). URS disseminates data on national level in September and send data to Eurostat also in September each year. |
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14.1.1. Time lag - first result | |||
Not applicable. |
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14.1.2. Time lag - final result | |||
Not applicable. |
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14.2. Punctuality | |||
Not applicable. |
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14.2.1. Punctuality - delivery and publication | |||
Will be calculated and provided by EUROSTAT. |
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15.1. Comparability - geographical | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Data on PEFA are compiled according to international guidelines and insofar comparable. Application of the PEFA Builder tool ensures comparability to a certain extent. |
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15.1.1. Asymmetry for mirror flow statistics - coefficient | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Not applicable. |
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15.2. Comparability - over time | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Please see the table in 15.2.1.1. |
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15.2.1. Length of comparable time series | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Will be calculated and provided by EUROSTAT. |
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15.2.1.1. Comparability - over time detailed | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Please use below table for explaining b)-flags (breaks in time series): There are no breaks in time series in PEFA data provided by Slovenia.
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15.3. Coherence - cross domain | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Although PEFA data are based on energy statistics data, there is no full comparability. Contrary to energy statistics, PEFA data are adjusted to residence principle and are disaggregated to NACE/HH level (2-digit) classification. Some aggregates (totals) may be partially comparable, but the methodological differences in data compilation process should be taken into account when interpreting and comparing the data. |
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15.3.1. Coherence - sub annual and annual statistics | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Not applicable; reported PEFA data are only annual. |
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15.3.2. Coherence - National Accounts | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PEFA data are coherent with European system of accounts (ESA), in particular with ESA supply and use tables. PEFA follows residence principle. |
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15.3.3. Do you cooperate with national colleagues compiling AEA? | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Yes, the process of calculation is in part connected, specifically with adjusting data to residence principle and disaggregating road transport energy use/emissions to NACE and HH. |
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15.3.4. Are there compilation elements that PEFA compilers jointly undertake with AEA compilers (e.g. distribution of road transport fuel use and emissions by NACE)? | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Yes, residence principle adjustment and disaggregation of road transport fuel use. |
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15.3.5. Do you report in PEFA imports and exports according to the SEEA-CF concepts for trade in goods (see SEEA-CF section 3.3.3, paras. 3.121 ff., and para. 1.46)? | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PEFA data are based on energy statistics and adjusted to the residence principle and are in line with SEEA-CF concepts for trade in goods. |
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15.3.6. Do you perform cross-domain plausibility checks between your PEFA data on air transport versus OECD's data on CO2-emissions of air transport? | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Yes, for both PEFA and AEA surveys the OECD data is used for estimating air transport energy use/emissions. |
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15.3.7. Do you perform cross-domain plausibility checks between PEFA data points and corresponding data points in energy statistics (see PEFA validation rules)? | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The data compilation process ensures comparability of PEFA data points with corresponding data points in energy statistics. Some rather small possible deviations may be subject of use of auxilliary data in PEFA survey, such as data used for residence principle adjustment and allocating road transport energy use to NACE/HH. However, the aggregates should be fully in line (taking into account residence principle adjustment). |
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15.3.8. Do you perform cross-domain plausibility checks between PEFA data points and the corresponding data points in economy-wide material flow accounts (EW-MFA) (see PEFA validation rules)? | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
There is no direct cross-domain plausibility checks between PEFA data points and the corresponding data points in economy-wide material flow accounts (EW-MFA) included in data compilation process at the moment, however it is estimated that the data (given the data sources used) are comparable. |
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15.4. Coherence - internal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Eurostat's validation procedures should ensure full internal consistency, at least for the mandatory data points. |
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AEA dataare being processed, disseminated and reported by 1 statistitician. It is estimated that full time equivalent (1) in months normally account to 4 months. There are no additional costs; data processing is made only by staff on SURS. |
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17.1. Data revision - policy | |||
Standard procedures applied for revisions are available online in document Methodological explanations - revision of statistical data. PEFA data (whole time series, from 2008 onwards) are being revised annualy. |
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17.2. Data revision - practice | |||
PEFA data (whole time series, from 2008 onwards) are revised anually. Revisions are planned and are made due to possible annual changes in JQ data, auxilliary data used in data compilation process, changes in Eurostat's requirements for data processing, PEFA tools etc. |
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17.2.1. Data revision - average size | |||
Will be calculated and provided by EUROSTAT. |
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18.1. Source data | |||
Data sources used to produce physical energy flow accounts are described in the following sub-concepts. |
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18.1.1. Which are the main data sources you employ for the use of natural energy inputs (i.e. who is extracting)? | |||
Main data source are 5 annual Joint Questionnaires for Energy Statistics (COAL, PETROL, ELECTRICITY, OIL and RENEWABLES) from where the data for the use of natural energy inputs are estimated. |
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18.1.2. Which are the main data sources you employ for supply of energy products (e.g. electricity, refinery products etc.)? | |||
Main data source are 5 annual Joint Questionnaires for Energy Statistics (COAL, PETROL, ELECTRICITY, OIL and RENEWABLES), which are used for estimating supply of energy products. |
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18.1.3. Which are the main data sources you employ for the transformation use by energy transforming entities (NACE 2-digit divisions)? | |||
Main data source are 5 annual Joint Questionnaires for Energy Statistics (COAL, PETROL, ELECTRICITY, OIL and RENEWABLES) and SUT data are also used for estimating use by energy transforming entities. |
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18.1.4. Which are the main data sources you employ for the end use by end user entities (including non-energy use)? | |||
Main data source are 5 annual Joint Questionnaires for Energy Statistics (COAL, PETROL, ELECTRICITY, OIL and RENEWABLES). In order to allocate energy use of certain energy products by NACE, SURS also uses supply-use tables of energy products (preprared within Section for National Accounts). For residence principle adjustment SURS uses national transport statistics (personal and freight transport), national tourism statistical data (tourism satellite accounts), business reports from major transport companies on fuel used (sea port in Koper, national airport company etc.), OECD data on air emissions from air transport (for 2020), data on petroleum products sold/imported/exported in Slovenia, data on fuel sold by "truck cards" by residence of buyer (data obtained from 3 major companies that sell fuel on gas pumps), etc.. For the purpose of proper allocation of road transport energy use by NACE activities, the data from Registry of vehicles and documents - "MRVL" is used. |
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18.1.5. Which auxiliary data do you use to develop 'distribution keys' to assign energy use to the detailed breakdown of production activities (NACE 2-digit divisions) and categories of household consumption? | |||
Main data source for detailed allocation of energy use are supply-use tables (SUT) of energy products. In case of detailed allocation of household consumption SURS uses the data from Household budget survey (HBS), from where the data on household assets used for transportation, heating and cooling and other purposes are obtained (based on this data, SURS calculates the shares and allocates households energy use). Allocation of road transport energy use is based on administrative data from Registry of vehicles and documents (MRVL). |
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18.1.6. Do you use the PEFA builder? If yes: for populating the PEFA Tables, or for control only? | |||
Yes, for populating PEFA tables and final control. |
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18.1.7. Which data sources do you use to make adjustments for the residence principle? | |||
SURS adjusts energy use to residence principle for air transport based on data on use of fuel by national carrier and jet fuel sold to domestic/foreign air companies (for 2008-2019) and data form OECD on CO2 emissions (data were recalculated to energy use) from air transport (for 2020). For residence adjustment of energy use in water transport SURS used data from only national sea port on fuel sold and data from only national ship transport company on fuel used). For road transport residence adjustment there was a methodological revision carried out in 2022, which included collecting data from major companies that sell fuel on gas pumps in the country (data on fuel sold by "truck cards", based on residency of buyer) and from tourism satellie accounts (for the purpose of personal transport residence adjustment). It has to be noted that since Slovenia only has 1 sea port, 1 national shipping company and 1 national air carrier (operating until 2019), this may result in some rather big fluctuations of energy use of residents abroad and non-residents on the territory for air and water transport, when data for several years are compared. |
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18.2. Frequency of data collection | |||
Data sources are collected annualy. All data sources are annual data. |
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18.3. Data collection | |||
Data are annualy collected directly from administrative (OECD database, major petrol companies truck cards data, National Vehicle Registry data from Ministry of Infrastructure) and statistical data sources (energy, household budget survey, transport statistics). |
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18.4. Data validation | |||
Data are processed through PEFA Builder and NACE Breakdown tool and are checked in PEFA Questionnaire (automated check). Visual check of the data is also made (comparison with previous reporting years for possible major/unexplained discrepancies) and comparison with JQ data. |
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18.5. Data compilation | |||
Data si compiled through PEFA tools. There is no special imputation or weighting process foreseen for this survey. |
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18.5.1. Imputation - rate | |||
Not applicable. |
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18.5.2. Do you assign all supply of electricity and heat to NACE D35, or do you assign some to other NACE divisions than D35? Is the assignment you did fully aligned to the ESA monetary supply table submitted by your country? | |||
No, supply of elerctricity and heat from autroproduces was allocated to various NACE activities, not only D35. The diaggregation is based on data from annual Joint Questionnaires for energy (JQ). The proper division of data reported in JQ was made based on instructions from "Electricity and heat annual questionnaire and histroical revisions" handbook, where links between reporting values in JQ and NACE codes is described. |
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18.5.3. Which method do you use for the allocation of road transport energy use to NACE industries and households? | |||
The allocation is made with data obtained from Registry of vehicles and documents (MRVL database), where all vehicles are assigned to NACE codes. This allocation was then included in table No. 15 of NACE Breakdown tool. Allocation is based on detailed data: for light and heavy duty vehicles distribution key is based on number of vehicles and mileage, while for personal cars distibution key is based on number of vehicles, mileage and average fuel consumption. |
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18.5.4. Which method do you use for the allocation of energy use to detailed service industries (i.e. NACE 2-digit divisions 55-98)? | |||
Supply-use tables data are used for allocation of energy use to detailed service industries (i.e. NACE 2-digit divisions 55-98). |
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18.5.5. How do you ensure a coherent assignment of energy use to economic activities (i.e. the use of energy products by a given production activity (NACE A*64 division) reported in PEFA must be coherent with the emissions reported in AEA)? | |||
PEFA data compilation process is in part connected with AEA data compilation. As PEFA, part of AEA emissions are allocated based on SUT data. |
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18.6. Adjustment | |||
Not applicable. |
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18.6.1. Seasonal adjustment | |||
Not applicable. |
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