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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | Statistical Office of the Republic of Slovenia (SURS) |
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1.2. Contact organisation unit | Environmental Statistics Division; Section for Environment and Energy Statistics |
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1.5. Contact mail address | Statistical Office of the Republic of Slovenia, Litostrojska 54, SI-1000 Ljubljana |
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2.1. Metadata last certified | 12/07/2022 | ||
2.2. Metadata last posted | 10/06/2022 | ||
2.3. Metadata last update | 10/06/2022 |
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3.1. Data description | ||||||||||||
European statistics on natural gas prices for household and final non-household customers. |
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3.2. Classification system | ||||||||||||
Internal Eurostat classification system based on annual natural gas consumption bands and tax levels. |
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3.3. Coverage - sector | ||||||||||||
Household sector and non-household sector (industry, services, offices, agriculture, etc). |
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3.4. Statistical concepts and definitions | ||||||||||||
The prices are collected in national currencies per GJ and according to different bands of consumption. For the households sector, these bands are:
For the final non-households sector, the bands are:
There exist 2 different levels of disagregation for semestrial and annual prices: 1- Semestrial prices: These prices are reported twice a year and are divided in 3 levels:
2- Annual prices: These prices are reported once a year together with the data for the second semester and are divided into the following components and taxes:
In addition to these elements, the network cost is split into the respective shares of transmission and distribution. The relative share of consumption in the different consumption bands is reported by the countries and used to calculated the single national natural gas prices (weighted averages for consumer bands IA-IF and DA-DE) but not published because it could be used to re-calculate some confidential values. Some of the taxes are refundable. Here is a description of them:
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3.5. Statistical unit | ||||||||||||
Household and final non-household consumers divided into consumption bands. |
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3.6. Statistical population | ||||||||||||
Household customers: Data coming from 15 suppliers out of 15 and representing 100% of the household customers. Households network costs data are collected by 10 distributors. Non-household customers: Data coming from 16 suppliers out of 16 and representing 100% of the final non-household customers. Non-household etwork costs data are collected by 12 distributors. |
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3.7. Reference area | ||||||||||||
Whole country (Slovenia). |
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3.8. Coverage - Time | ||||||||||||
Natural gas prices data for Slovenia are available since 2nd semester of 2007. |
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3.9. Base period | ||||||||||||
Not applicable. |
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Prices are reported to Eurostat in national currency per GJ. However, Eurostat also calculates and publishes the prices in EURO and PPS (purchasing power parity) and do the conversion to kWh. |
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For semestrial prices, the reference periods are from January to June for semester 1 and from July to December for semester 2. For annual prices, the reference period is the whole calendar year (from January to December). |
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6.1. Institutional Mandate - legal acts and other agreements | |||
At EU level:
At national level:
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6.2. Institutional Mandate - data sharing | |||
At EU level:
At national level:
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7.1. Confidentiality - policy | |||
At EU level:
At national level:
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7.2. Confidentiality - data treatment | |||
Published data should not allow identification of single consumers. The method applied to confidential data on a national level is cell suppression (instead of number the cell contains z). For the reporting to Eurostat confidential data are flagged with c. |
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8.1. Release calendar | |||
Statistical results and services are available free of charge, in the same way they are accessible to every user and are published according to a pre-announced release calendar. They are also available in English. Data are published on SURS's website and SiStat database on T+65 days basis every quarter (i.e. in March, June, September and December). Half yearly data are published in March and September, along with quarterly data. In March also annual data are published. Release calendar is released at the end of every year for the next reporting year and is publicly available. |
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8.2. Release calendar access | |||
Release calendar is publicly available via the following link: https://www.stat.si/StatWeb/en/releasecal |
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8.3. Release policy - user access | |||
Data is released (i.e. published on SURS's website as First release and SiStat database) as determined in the release calendar. All data (excluding confidential data) is released to the general public and is therefore publicly available to any interested individual/institution/organization... Users are also informed on data release via social networks (Facebook, Twitter). Statistical data are disseminated to all users at the same time. |
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Natural gas prices in Slovenia are published on a semestrial basis on Eurostat's website. Data is also published in:
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10.1. Dissemination format - News release | |||
First Releases are published on a SURS’s website according to a pre-announced release calendar and at the same time data are published in a publicly accessible data base (SiStat database). |
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10.2. Dissemination format - Publications | |||
Data is also disseminated (published) in annual national statistical publications:
Published in non-statistical publications:
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10.3. Dissemination format - online database | |||
There are following on-line databases:
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10.3.1. Data tables - consultations | |||
It is estimated that around 200 consultations (page visits in the SiStat database for natural gas prices tables) occur anually. |
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10.4. Dissemination format - microdata access | |||
Microdata is available on SURS, since SURS has direct access to the administrative source. Data are being collected in EPOS administrative database (operated by Energy Directorate, Ministry of Infrastructure). |
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10.5. Dissemination format - other | |||
No other dissemination format. |
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10.5.1. Metadata - consultations | |||
There is no data available on number of consultations within a statistical domain for a given time period. |
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10.6. Documentation on methodology | |||
Methodological explanation: https://www.stat.si/StatWeb/File/DocSysFile/8313/18-143-ME.pdf |
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10.6.1. Metadata completeness - rate | |||
The ratio of the number of metadata elements provided to the total number of metadata elements applicable is 100%. |
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10.7. Quality management - documentation | |||
Annual quality reports for the survey are publicly available: https://www.stat.si/statweb/en/Methods/QuestionnairesMethodologicalExplanationsQualityReports |
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11.1. Quality assurance | |||
At the end of every survey (i.e. on annual level, if not determined otherwise), annual quality report (which is in many points simmilar to this, provided by Eurostat) is prepared. 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. |
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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 certain survey (e.g. energy prices). Users can however directly contact the statistitian responsible for the survey (e-mail address and phone number are provided in SiStat 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 | |||
The ratio of the number of data cells provided to the number of data cells required is 100%. |
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13.1. Accuracy - overall | |||
Data are collected from administrative database (EPOS databse operated by Energy Directorate, Ministry of Infrastructure). If the reports collected from the reporting units (i.e. gas distributors) include errors, they are warned by SURS and asked to revise the data and apply corrections. |
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13.2. Sampling error | |||
There is no sampling error, since the coverage is 100%. |
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13.2.1. Sampling error - indicators | |||
There is no sampling error, since the coverage is 100%. |
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13.3. Non-sampling error | |||
Information is included in the sub-concepts S.13.3.1-S.13.3.5. |
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13.3.1. Coverage error | |||
Not applicable since the coverage is 100% |
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13.3.1.1. Over-coverage - rate | |||
Slovenia is not aware of any over-coverage error. |
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13.3.1.2. Common units - proportion | |||
Slovenia do not use administrative data. 100% of the data comes from the surveys. |
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13.3.2. Measurement error | |||
The coverage is 100%. Data are collected from administrative source and are checked for possible deviations. |
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13.3.3. Non response error | |||
Not applicable since the coverage is 100%. |
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13.3.3.1. Unit non-response - rate | |||
All natural gas suppliers and network distributors provided all the data, the non-response rate is 0%. |
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13.3.3.2. Item non-response - rate | |||
0 of suppliers and 0 distributors representing 0% of the target population did not provide information on gas prices. |
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13.3.4. Processing error | |||
The process is continuous. Data are checked once they are tabulated for possible deviations. 0 processing errors were identified as of now. |
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13.3.5. Model assumption error | |||
Not Applicable. |
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14.1. Timeliness | |||
Natural gas providers that participate in the national data collection are requested to provide the natural gas price data within 1 month after the reference period. After arrival, the statistical office checks the aggregated data for correctness, consistency and completeness and national averages are calculated and reported to Eurostat during the third month after the reference period. |
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14.1.1. Time lag - first result | |||
The first version of the natural gas price questionnaire for households for the 1st semester of 2019 was sent before the legal deadline. The first version of the natural gas price questionnaire for households for the 2nd semester of 2019 was sent 9 days after the legal deadline. The first version of the natural gas price questionnaire for households for the 1st semester of 2020 was sent before the legal deadline. The first version of the natural gas price questionnaire for households for the 2nd semester of 2020 was sent before the legal deadline. The first version of the natural gas price questionnaire for households for the 1st semester of 2021 was sent before the legal deadline. The first version of the natural gas price questionnaire for households for the 2nd semester of 2021 was sent before the legal deadline. The first version of the natural gas price questionnaire for non-households for the 1st semester of 2019 was sent before the legal deadline. The first version of the natural gas price questionnaire for non-households for the 2nd semester of 2019 was sent 9 days after the legal deadline. The first version of the natural gas price questionnaire for non-households for the 1st semester of 2020 was sent before the legal deadline. The first version of the natural gas price questionnaire for non-households for the 2nd semester of 2020 was sent before the legal deadline. The first version of the natural gas price questionnaire for non-households for the 1st semester of 2021 was sent before the legal deadline. The first version of the natural gas price questionnaire for non-households for the 2nd semester of 2021 was sent before the legal deadline. |
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14.1.2. Time lag - final result | |||
Fisrt results are equal to final results, as no revisions are planned. 2nd semebter 2019 questionaires were sent after the dealine due to COVID-19 work restrictions. |
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14.2. Punctuality | |||
The legal deadline for submitting the questionnaires is the third month after the reference period. 2nd semester 2019 questionaires were sent after the dealine due to COVID-19 work restrictions. |
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14.2.1. Punctuality - delivery and publication | |||
2nd semebter 2019 questionaires were sent after the dealine due to COVID-19 work restrictions. |
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15.1. Comparability - geographical | |||
Reported data cover whole country (Slovenia). The methodological process is fully aligned with international requirements (European regulations and standards), therefore the data are fully comparable on international level. |
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15.1.1. Asymmetry for mirror flow statistics - coefficient | |||
Not applicable |
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15.2. Comparability - over time | |||
There have been no changes. |
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15.2.1. Length of comparable time series | |||
Half-yearly data, (time series since 2nd semester of 2007) reported to Eurostat are fully comparable and have no breaks in time series. No changes were made in the underlying statistical process in that period of time. |
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15.3. Coherence - cross domain | |||
Not applicable |
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15.3.1. Coherence - sub annual and annual statistics | |||
Not applicable |
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15.3.2. Coherence - National Accounts | |||
Not applicable |
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15.4. Coherence - internal | |||
Annual prices are coherent with the semestrial prices. |
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Data from the natural gas distributors are being collected (not directly for statistical purposes) in the EPOS administrative databse, which is operated by Energy Directorate, Ministry of Infrastructure. Since the data are collected for administrative purpose, there is no direct or additional burden on respondents to report for the statistical purposes. There is no additonal cost of data collection for SURS. Data for natural gas prices are being processed, disseminated and reported by 1 statistitician. 0,1 full time equivalents for the production of natural gas prices are being used. |
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17.1. Data revision - policy | |||
Data on natural gas prices are published as final (publication is T+65 days after the reference period). Revisions are not planned. Standard procedures applied for revisions are available online in document Methodological explanations - revision of statistical data. |
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17.2. Data revision - practice | |||
Revisions are not planned. |
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17.2.1. Data revision - average size | |||
Households gas prices collection: 2.75738E-05 Non-households gas prices collection: 0.00052393 |
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18.1. Source data | |||
Data source is administrative database (EPOS database, operated by Energy Directorate, Ministry of Infrastructure). Data are being obtained (extracted) from database by SURS. |
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18.2. Frequency of data collection | |||
Data are being reported and collected on quarterly level. Reportings and direct access to the database is based on mutual agreement with administrative database operator (Energy Directorate, Ministry of Infrastructure): data on natural gas prices are extracted from the database, processed and reported to the Energy Directorate, Ministry of Infrastructure by SURS. |
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18.3. Data collection | |||
Data are being collected in administrative database (online form). SURS obtains the data directly from administratuive database. Questionnaire form is attached (available only in Slovene). Annexes: Questionnaire for gas suppliers |
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18.4. Data validation | |||
Data are being checked by statistician on SURS, responsible for this survey, who visually checks the data and compares it with data from previous reporting cycles. If data are incomplete, statistician contacts a reporting unit with a request for clarification and asks the reporting unit to resend the correct data. |
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18.5. Data compilation | |||
Data are based on administrative source. The coverage is 100%. No special data compilation process is needed (i.e. weightening, imputation, adjustment for non-response, calibration etc.). |
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18.5.1. Imputation - rate | |||
Not applicable. |
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18.6. Adjustment | |||
Not applicable. |
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18.6.1. Seasonal adjustment | |||
Seasonal adjustments are not carried out. |
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