Reference metadata describe statistical concepts and methodologies used for the collection and generation of data. They provide information on data quality and, since they are strongly content-oriented, assist users in interpreting the data. Reference metadata, unlike structural metadata, can be decoupled from the data.
European statistics on electricity prices for household and final non-household customers.
3.2. Classification system
Internal Eurostat classification system based on annual electricity consumption bands and tax levels.
3.3. Coverage - sector
Household sector and final non-household sector (industry, services, offices, agriculture, etc).
3.4. Statistical concepts and definitions
The prices are reported in national currencies per kWh and according to different bands of consumption.
For the household sector, these bands are:
DA: customers consuming less than 1000 kWh.
DB: customers consuming 1000 kWh or more but less than 2500 kWh.
DC: customers consuming 2500 kWh or more but less than 5000 kWh.
DD: customers consuming 5000 kWh or more but less than 15000 kWh.
DE: customers consuming 15000 kWh or more.
For the final non-household sector, the bands are:
IA: customers consuming less than 20 MWh.
IB: customers consuming 20 MWh or more but less than 500 MWh.
IC: customers consuming 500 MWh or more but less than 2000 MWh.
ID: customers consuming 2000 MWh or more but less than 20000 MWh.
IE: customers consuming 20000 MWh or more but less than 70000 MWh.
IF: customers consuming 70000 MWh or more but less than 150000 MWh.
IG: customers consuming 150000 MWh or more.
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:
Level 1 prices: prices excluding taxes and levies.
Level 2 prices: prices excluding VAT and other recoverable taxes and levies.
Level 3 prices: prices including all taxes and levies.
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:
Energy and supply: generation, aggregation, balancing energy, supplied energy costs, customer services, after-sales management and other supply costs.
Network cost: transmission and distribution tariffs, transmission and distribution losses, network costs, after-sale service costs, system service costs, and meter rental and metering costs.
Value added taxes (VAT): as defined in Council Directive 2006/112/EC.
Renewable taxes: taxes, fees, levies or charges relating to the promotion of renewable energy sources, energy efficiency and CHP generation.
Capacity taxes: Taxes, fees, levies or charges relating to capacity payments, energy security and generation adequacy; taxes on coal industry restructuring; taxes on electricity distribution; stranded costs and levies on financing energy regulatory authorities or market and system operators.
Environmental taxes: taxes, fees, levies or charges relating to air quality and for other environmental purposes; taxes on emissions of CO2 or other greenhouse gases. This component includes the excise duties.
Nuclear taxes: taxes, fees, levies or charges relating to the nuclear sector, including nuclear decommissioning, inspections and fees for nuclear installations.
All other taxes: taxes, fees, levies or charges not covered by any of the previous five categories: support for district heating; local or regional fiscal charges; island compensation; concession fees relating to licences and fees for the occupation of land and public or private property by networks or other devices.
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 electricity 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.
Value added tax is refundable for non-households cosnumers. It is reported in Level 3 prices.
3.5. Statistical unit
Household and final non-household consumers divided into consumption bands.
3.6. Statistical population
Household customers: Data coming from 16 suppliers and representing about 100 % of the household consumption.
Final non-household customers: Data coming from 26 suppliers and representing 75 % of the final non-household consumption.
3.7. Reference area
Whole country.
3.8. Coverage - Time
Electricity prices data for Slovakia are available since 2004.
3.9. Base period
Not applicable.
Prices are reported in national currency per kWh. However, Eurostat also calculates and publishes the prices in EURO and PPS (purchasing power parity). Relative shares of sub-component of the network component and consumption volumes are reported in percentages.
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).
6.1. Institutional Mandate - legal acts and other agreements
At EU level:
Regulation (EU) 2016/1952 of the European Parliament and of the Council of 26 October 2016 on European statistics on natural gas and electricity prices and repealing Directive 2008/92/EC (Text with EEA relevance).
Commission Implementing Regulation (EU) 2017/2169 of 21 November 2017 concerning the format and arrangements for the transmission of European Statistics on natural gas and electricity prices pursuant to Regulation (EU) 2016/1952 of the European Parliament and of the Council (Text with EEA relevance).
Commission Implementing Decision (EU) 2018/1734 of 14 November 2018 granting derogations to the Federal Republic of Germany, the Kingdom of Spain, the Italian Republic and the Republic of Cyprus as regards the provision of statistics pursuant to Regulation (EU) 2016/1952 of the European Parliament and of the Council (notified under document C(2018) 7465) (Text with EEA relevance).
Commission Implementing Regulation (EU) 2019/803 concerning the content of quality reports on European statistics on natural gas and electricity prices pursuant to Regulation (EU) 2016/1952 of the European Parliament and of the Council (Text with EEA relevance).
At national level:
Right to collect data in general is governed by the Slovak National Council law No 540/2001 (Digest) on the state statistics as amended and supplemented by further regulations.
Eurostat does not share the data collected with other organisation appart from its usual dissemination chanel (Eurostat's database, statistic explained articles and press or news release) .
At national level:
Data is sent to Eurostat.
7.1. Confidentiality - policy
At EU level:
Regulation (EC) No 223/2009 of the European Parliament and of the Council, of 11 March 2009, on the transmission of data subject to statistical confidentiality to the Statistical Office of the European Communities.
Instructions and guidelines are provided in internal directive SME – 1/2015 - Directive on confidentiality data protection complemented by Methodological guideline MET-4/2019. Directive contains general issues related to the confidentiality, while the methodological guideline is focused on concrete methods and parameter values used in the phase of confidentiality treatment of particular statistical surveys results and data files.
7.2. Confidentiality - data treatment
Published data should not allow identification of single consumers.
We apply the rule of primary and secondary confidentiality data protection. Data for less than 3 reporting units are flaged as confidential.
8.1. Release calendar
The First Release Calendar provides the precise release dates for the coming four months in advance. The calendar is updated monthly. It covers main economic and social indicators established currently within the EU regulations and IMF special standard, which define timeliness standards as well.
In the First Release Calendar compilation release dates defined by Eurostat are taken into consideration.
The Catalogue of Publications is released every year. It contains information on particular publications, periodicity and dates of release.
Nor the First Release Calendar nor The Catalogue of Publications contain electricity prices data. Data are not published at national level.
Electricity prices are public available in Eurostat's database.
8.2. Release calendar access
The First Release Calendar is publicly accessible. It is disseminated on the office's website.
8.3. Release policy - user access
In general there is a standing rule, that all users have the right to be provided with information at the same time. Outputs are released at the Internet portal of the SOSR in accordance with Principles of Release and Provision of Statistical Information.
Electricity prices in Slovakia are published on a semestrial basis on Eurostat's website.
10.1. Dissemination format - News release
No news release.
10.2. Dissemination format - Publications
No national publication.
10.3. Dissemination format - online database
No online database.
10.3.1. Data tables - consultations
No data tables available.
10.4. Dissemination format - microdata access
Microdata are not disseminated.
10.5. Dissemination format - other
Data are sent to Eurostat. No other dissemination format.
10.5.1. Metadata - consultations
No metadata available at national level.
10.6. Documentation on methodology
Methodology is available in legal acts (see 6.1 Institutional Mandate) and in Statistical Questionnaire.
10.6.1. Metadata completeness - rate
No metadata available.
10.7. Quality management - documentation
Methodological guidelines Quality indicators of statistical outputs and processes (MET-2/2012) and Application of mathematical-statistical methods for statistical surveys (MET-3/2012) are available for statistical data production.
11.1. Quality assurance
Quality policy is defined and made available to the public in documents:
Quality declaration and Quality policy.The SOSR high level statements highlight customer orientation and quality of the SOSR products and services; this is then reflected in the development strategy of the SOSR for the given period of time in: Vision, mission, common shared values.
Quality Manual is covering all elements of the ISO 9001.
European Statistics Code of Practice is the backbone of the whole QMS.
11.2. Quality management - assessment
All necessary issues related to data entry, data completeness and statistical controls are implemented in integrated statistical information system - ISIS. The cross-checking is done in the context of the statistical control process. A comparison with the development in previous periods is done.
Regarding the results of particular data production processes the overall quality of the electricity prices is considered to be as good.
12.1. Relevance - User Needs
Key user is Eurostat. We navigate other users to Eurostat database.
12.2. Relevance - User Satisfaction
User satisfaction is monitored via “Survey on satisfaction of users with products and services of the SO SR” conducted regularly with two-year periodicity. Evaluation of the user satisfaction survey also includes satisfactions rate (overall and for specified areas as well as for groups of products) and it is submitted together with conclusions and suggestions for improvements to top management meeting for approval. Energy statistics is not surveyed individually. In 2020, the overall customer satisfaction with the Office's products and services reached 82,1 points.
12.3. Completeness
All legislation requirements are fulfilled.
12.3.1. Data completeness - rate
100 %
13.1. Accuracy - overall
Most of checks are realised in the process of data entry automatically (number range, relations among the variables). Checks are realised also on the outputs. The errors are directly consulted with the reporting units.
We apply various treatments to ensure that errors are minimised. Improvement actions include business registry updates, careful logical controls and constant contact with the reporting units.
13.2. Sampling error
Due to the high percentage of the population represented, the sampling error is considered negligible.
13.2.1. Sampling error - indicators
Negligible.
13.3. Non-sampling error
Information is included in the sub-concepts S.13.3.1 –S.13.3.5.
13.3.1. Coverage error
Given the high percentage of the population covered, all kinds of unit are well represented.
13.3.1.1. Over-coverage - rate
Over-coverage is not estimated.
13.3.1.2. Common units - proportion
79 % come from survey. Part of taxes and network cost in percentage are taken from administrative sources.
13.3.2. Measurement error
Data are collected via electronic system. Questionnaire and reporting system provide a lot of arithmetic and logical controls between particular items that are mandatory and optional. The questionnaire cannot be submitted, if not correctly completed without any errors detected by the checking program.
13.3.3. Non response error
Response rate is 100 %.
13.3.3.1. Unit non-response - rate
Unit non-response does not exist.
13.3.3.2. Item non-response - rate
Item non-response does not exist.
13.3.4. Processing error
There were no processing errors.
13.3.5. Model assumption error
Not applicable.
14.1. Timeliness
Electricity providers that participate in the national data collection are requested to provide the electricity price data within 1 month after the reference period. After arrival, the statistical office checks the micro-data for correctness, consistency and completeness and national averages are calculated and reported to Eurostat during the third month after the reference period.
14.1.1. Time lag - first result
The first version of the electricity price questionnaire for households for the 1st semester of 2019 was sent 87 days after the reference period.
The first version of the electricity price questionnaire for households for the 2nd semester of 2019 was sent 87 days after the reference period.
The first version of the electricity price questionnaire for households for the 1st semester of 2020 was sent 92 days after the reference period.
The first version of the electricity price questionnaire for households for the 2nd semester of 2020 was sent 90days after the reference period.
The first version of the electricity price questionnaire for households for the 1st semester of 2021 was sent 86 days after the reference period.
The first version of the electricity price questionnaire for households for the 2nd semester of 2021 was sent 83 days after the reference period.
The first version of the electricity price questionnaire for non-households for the 1st semester of 2019 was sent 87 days after the reference period.
The first version of the electricity price questionnaire for non-households for the 2nd semester of 2019 was sent 87 days after the reference period.
The first version of the electricity price questionnaire for non-households for the 1st semester of 2020 was sent 92 days after the reference period.
The first version of the electricity price questionnaire for non-households for the 2nd semester of 2020 was sent 90days after the reference period.
The first version of the electricity price questionnaire for non-households for the 1st semester of 2021 was sent 86 days after the reference period.
The first version of the electricity price questionnaire for non-households for the 2nd semester of 2021 was sent 83 days after the reference period.
14.1.2. Time lag - final result
The first version of the questionnaire is usually also final version.
14.2. Punctuality
The legal deadline for submitting the questionnaires to Eurostat is the third month after the reference period.
All deadlines have been respected.
14.2.1. Punctuality - delivery and publication
All questionnaires are submitted on time.
15.1. Comparability - geographical
There is no problem of comparability between countries or regions. The same statistical concepts are applied for the entire area of Slovak Republic and are comparable to European regulation.
15.1.1. Asymmetry for mirror flow statistics - coefficient
Not applicable.
15.2. Comparability - over time
Changes were made according European legislation.
15.2.1. Length of comparable time series
Data are comparable from 2003 to 2007 and from 2007 to now.
15.3. Coherence - cross domain
Not applicable.
15.3.1. Coherence - sub annual and annual statistics
The primary source of revisions are new data received from reporting units.
17.2.1. Data revision - average size
Version 2 of the electricity price questionnaire for households for the 2nd semester of 2020 was sent 267 days after the reference period. 5 items from 142; correction of wrongly inserted numbers.
It has been distinguished between two levels of checking:
1/ Formal checks, which are realised in the process of data entry automatically;
2/ Informal checks aim of which is to control the complexity and relations among the variables .
According to the importance there are classified 2 basic types of informal checks:
I – informative check- this check gives the additional information, which is important for the following process of corrections. It informs also about some inconsistencies in the state of fulfilment of the questionnaire, about item non-response, exceeding stated limits etc.
Z – check of great importance - it is mostly check indicating the exact error and it must be always corrected or explained.
Most of the errors are directly consulted with the reporting units by our regional offices.
18.5. Data compilation
Amount of invoiced electricity in consumption band is the weight of supplier in calculation of national prices. The data from the regulator is merged with the results of weighted averages data coming from the survey before dissemination.
18.5.1. Imputation - rate
We are not doing imputations.
18.6. Adjustment
We are not doing adjustments.
18.6.1. Seasonal adjustment
Seasonable adjustments are not carried out.
None.
European statistics on electricity prices for household and final non-household customers.
15 June 2022
The prices are reported in national currencies per kWh and according to different bands of consumption.
For the household sector, these bands are:
DA: customers consuming less than 1000 kWh.
DB: customers consuming 1000 kWh or more but less than 2500 kWh.
DC: customers consuming 2500 kWh or more but less than 5000 kWh.
DD: customers consuming 5000 kWh or more but less than 15000 kWh.
DE: customers consuming 15000 kWh or more.
For the final non-household sector, the bands are:
IA: customers consuming less than 20 MWh.
IB: customers consuming 20 MWh or more but less than 500 MWh.
IC: customers consuming 500 MWh or more but less than 2000 MWh.
ID: customers consuming 2000 MWh or more but less than 20000 MWh.
IE: customers consuming 20000 MWh or more but less than 70000 MWh.
IF: customers consuming 70000 MWh or more but less than 150000 MWh.
IG: customers consuming 150000 MWh or more.
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:
Level 1 prices: prices excluding taxes and levies.
Level 2 prices: prices excluding VAT and other recoverable taxes and levies.
Level 3 prices: prices including all taxes and levies.
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:
Energy and supply: generation, aggregation, balancing energy, supplied energy costs, customer services, after-sales management and other supply costs.
Network cost: transmission and distribution tariffs, transmission and distribution losses, network costs, after-sale service costs, system service costs, and meter rental and metering costs.
Value added taxes (VAT): as defined in Council Directive 2006/112/EC.
Renewable taxes: taxes, fees, levies or charges relating to the promotion of renewable energy sources, energy efficiency and CHP generation.
Capacity taxes: Taxes, fees, levies or charges relating to capacity payments, energy security and generation adequacy; taxes on coal industry restructuring; taxes on electricity distribution; stranded costs and levies on financing energy regulatory authorities or market and system operators.
Environmental taxes: taxes, fees, levies or charges relating to air quality and for other environmental purposes; taxes on emissions of CO2 or other greenhouse gases. This component includes the excise duties.
Nuclear taxes: taxes, fees, levies or charges relating to the nuclear sector, including nuclear decommissioning, inspections and fees for nuclear installations.
All other taxes: taxes, fees, levies or charges not covered by any of the previous five categories: support for district heating; local or regional fiscal charges; island compensation; concession fees relating to licences and fees for the occupation of land and public or private property by networks or other devices.
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 electricity 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.
Value added tax is refundable for non-households cosnumers. It is reported in Level 3 prices.
Household and final non-household consumers divided into consumption bands.
Household customers: Data coming from 16 suppliers and representing about 100 % of the household consumption.
Final non-household customers: Data coming from 26 suppliers and representing 75 % of the final non-household consumption.
Whole country.
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).
Most of checks are realised in the process of data entry automatically (number range, relations among the variables). Checks are realised also on the outputs. The errors are directly consulted with the reporting units.
We apply various treatments to ensure that errors are minimised. Improvement actions include business registry updates, careful logical controls and constant contact with the reporting units.
Prices are reported in national currency per kWh. However, Eurostat also calculates and publishes the prices in EURO and PPS (purchasing power parity). Relative shares of sub-component of the network component and consumption volumes are reported in percentages.
Amount of invoiced electricity in consumption band is the weight of supplier in calculation of national prices. The data from the regulator is merged with the results of weighted averages data coming from the survey before dissemination.
The data come from units which sell electricity to final customers and from distributors of electricity.
Administrative source is Regulatory Office for Network Industries.
Electricity prices in Slovakia are published on a semestrial basis on Eurostat's website.
Electricity providers that participate in the national data collection are requested to provide the electricity price data within 1 month after the reference period. After arrival, the statistical office checks the micro-data for correctness, consistency and completeness and national averages are calculated and reported to Eurostat during the third month after the reference period.
There is no problem of comparability between countries or regions. The same statistical concepts are applied for the entire area of Slovak Republic and are comparable to European regulation.
