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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | National Statistical Institute of Bulgaria |
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1.2. Contact organisation unit | Environmental and Energy Accounts Department |
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1.5. Contact mail address | National Statistical Institute |
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2.1. Metadata last certified | 11/07/2022 | ||
2.2. Metadata last posted | 11/07/2022 | ||
2.3. Metadata last update | 15/06/2022 |
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3.1. Data description | |||
European statistics on electricity prices for household and final non-household customers. |
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3.2. Classification system | |||
Internal Eurostat classification system based on annual electricity consumption bands and tax levels. |
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3.3. Coverage - sector | |||
Household sector and final non-household sector (industry, services, offices, agriculture, etc). |
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3.4. Statistical concepts and definitions | |||
The prices are reported in national currency (BGN) per kWh and according to standard bands of annual consumption. For the household customers, the following bands are applied:
For the final non-household customers, the following bands are aaplied:
Two different levels of disagregation for semestrial and annual prices exist: 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:
Obligations to society - Remarks on electricity Prices for non-household and household customers: Until the 2-nd semester of 2020 incl., due to the specifics of the electricity market in Bulgaria - liberalizied and regulated for non-household customers and fully regulated for household customers, the component Energy and supply for both types of customers included the price for "Obligations to society" (POS), determined by decisions of the Energy and Water Regulatory Commission. Respectively, the POS was reffered to the level 1 prices. From the 1st semester of 2021, with the full liberalization of the electricity market for non-household customers, the POS for non-household customers has been already referred to the component Taxes, other payments, levies and fees and respectively has been moved to the level 2 prices. The POS for household customers remains to be part of the component Energy and supply. In the 2021 annual price reporting, the POS disaggregation for the final non-household customers by price sub-components has been as follows:
State subsidies - Remarks on Electricity Prices data for non-household customers for 2nd semester of 2021 and Components for 2021: In the last quarter of 2021, in response to the increased prices on the liberalized electricity market, the government has approved a program to compensate the final non-household customers.This affected the 2nd semester prices reporting for non-household customers and will affect the next reporting for the 1st semester of 2022. The program envisages a temporary mechanism to support non-household customers through electricity suppliers in the form of a monthly compensation, calculated for each individual customer. The compensations are fixed price for MWh without VAT for each of the months – October, November and December. They are deducted from the total final price after VAT has been charged on each monthly invoice. Electricity non-households price reporting of 2nd semester of 2021 - The compensations are included in the level 3 prices with a negative value after the VAT charging. Electricity non-households price reporting of Components of 2021 - The compensation are reported on an annual basis under the component Taxes - All other taxes.
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3.5. Statistical unit | |||
Household and final non-household customers divided into consumption bands. |
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3.6. Statistical population | |||
The target population are household and final non-household customers buying electricity for their own use. Household customers: 2021_2 semester - Data are reporting by 29 retailers out of 54 plus 5 network operators and representing 100% of the household customers. Other 25 retailers do not supply electricity to household customers. 2021_1 semester - Data are reporting by 29 retailers out of 53 plus 5 network operators and representing 100% of the household customers. Other 24 retailers do not supply electricity to household customers. 2020_2 semester - Data are reporting by 26 retailers out of 52 plus 5 network operators and representing 100% of the household customers. Other 26 retailers do not supply electricity to household customers. 2020_1 semester - Data are reporting by 25 retailers out of 51 plus 5 network operators and representing 100% of the household customers. Other 26 retailers do not supply electricity to household customers. 2019_2 semester - Data are reporting by 27 retailers out of 50 plus 5 network operators and representing 100% of the household customers. Other 23 retailers do not supply electricity to household customers. 2019_1 semester - Data are reporting by 29 retailers out of 52 plus 5 network operators and representing 100% of the household customers. Other 25 retailers do not supply electricity to household customers. Final non-household customers: 2021_2 semester - Data are reporting by 48 retailers out of 51 plus 5 network operators and representing 100% of the final non-household customers. There are 3 retailers which supply electricity only to household customers. 2021_1 semester - Data are reporting by 50 retailers out of 53 plus 5 network operators and representing 100% of the final non-household customers. There are 3 retailers which supply electricity only to household customers. 2020_2 semester - Data are reporting by 52 retailers out of 52 plus 5 network operators and representing 100% of the final non-household customers. 2020_1 semester - Data are reporting by 51 retailers out of 51 plus 5 network operators and representing 100% of the final non-household customers. 2019_2 semester - Data are reporting by 50 retailers out of 50 plus 5 network operators and representing 100% of the final non-household customers. 2020_1 semester - Data are reporting by 52 retailers out of 52 plus 5 network operators and representing 100% of the final non-household customers.
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3.7. Reference area | |||
The national territory of the Republic of Bulgaria. |
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3.8. Coverage - Time | |||
Electricity prices data for Bulgaria are available since 2007. |
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3.9. Base period | |||
Not applicable. |
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Prices are reported in national currency (BGN) per kWh. However, Eurostat also calculates and publishes the prices in EURO and PPS (Purchasing Power Standard). |
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For semestrial prices, the reference periods are January - June for semester 1 and July - December for semester 2. For annual prices, the reference period is the whole calendar year (January - 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 do not allow identification of single customers. Individual data on prices are not published (they are suppressed), following Art. 25 of the Law on Statistics. Publishing of individual data is made under Art. 26 of the Law on Statistics. |
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8.1. Release calendar | |||
The date for publication of statistical information on prices is listed in the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute. Data on electricity prices for household and final non-household customers is published three months after the reporting period. |
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8.2. Release calendar access | |||
http://www.nsi.bg/en/node/44/basic-page/release-calendar
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8.3. Release policy - user access | |||
According to Article 23 of the Law on statistics of Bulgaria "The National Statistical Institute and statistical authorities shall announce to the public the results from the statistical surveys through the mass media, their websites, in own publications or by other means, in compliance with the provisions of Chapter Six" for all users at the same time. |
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Electricity prices in Bulgaria are published twice per year at the NSI website (section Statistical data, theme Energy), in Information system "Infostat" and at Eurostat's website. |
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10.1. Dissemination format - News release | |||
No national press release related to the data. |
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10.2. Dissemination format - Publications | |||
No other national publications related to the data. |
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10.3. Dissemination format - online database | |||
Online information system "Infostat" at the NSI website: |
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10.3.1. Data tables - consultations | |||
No national database related to the number of consultations of these data. |
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10.4. Dissemination format - microdata access | |||
NSI of Bulgaria does not give access to microdata related to electricity prices. |
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10.5. Dissemination format - other | |||
Information service upon request according to the Rules for dissemination of statistical products and services, published at the following link: https://nsi.bg/en/content/564/basic-page/rules-dissemination-statistical-products-and-services |
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10.5.1. Metadata - consultations | |||
Not applicable. |
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10.6. Documentation on methodology | |||
Methodology and metadata files are available at the NSI website, section Energy: Electricity prices metadata - https://nsi.bg/en/node/4172 Electricity prices_nonHouseholds methodology - https://nsi.bg/en/node/4174 Electricity prices_Households methodology - https://nsi.bg/en/node/4177 |
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10.6.1. Metadata completeness - rate | |||
0.9 |
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10.7. Quality management - documentation | |||
The latest quality report 2018 on the Electricity and Natural Gas prices (for reporting years 2016, 2017 and 2018) is published on the NSI's website - section Statisitical data, theme Energy: https://www.nsi.bg/en/content/4172/electricity-and-natural-gas-prices
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11.1. Quality assurance | |||
NSI has developed and implemented Quality Management System (QMS) according to the international standard ISO 9001:2008 since 2015. After several successful certification audits made, NSI is currently certified with ISO 9001:2015 and ISO/IEC 27001:2013. https://nsi.bg/sites/default/files/files/images/Sertificat_ISO_9001.pdf https://www.nsi.bg/sites/default/files/files/images/Sertificat_ISO_27001.pdf Implementation of the QMS includes: Regulation for QMS, Ordinance for the activity of Quality Council, Procedures, Programme for achieving aims regarding quality, Programme for the activity of Quality Council, Training on QMS, Reports, Audit. The NSS Quality Assurance framework includes methods and tools that aim to guarantee the compliance with the requirements to the statistical processes and products, and to ensure the required statistical information quality: |
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11.2. Quality management - assessment | |||
Data are with good quality. |
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12.1. Relevance - User Needs | |||
No information available for users of these data axactly, as they have free access to the NSI website. |
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12.2. Relevance - User Satisfaction | |||
No user satisfaction survey has been carried out for this dataset. |
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12.3. Completeness | |||
Data fully meet the requirements of the Regulation (EU) 2016/1952 - in terms of Annex II. |
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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: Table 1: 100% Table 2: 100% Table 3: 100% Table 4: 100% |
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13.1. Accuracy - overall | |||
Data are reliable, the accuracy is good. Electricity prices data are verified for each supplier. The comparative analyses are made with the data for previous periods. Electricity prices data are verified with the desicions of Energy and Water Regulatory Commission, determining prices of the final suppliers, operated at the regulated electricity market and of the network operators. |
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13.2. Sampling error | |||
No sampling used as the data covers 100% of the population. |
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13.2.1. Sampling error - indicators | |||
Not applicable. |
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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 | |||
As 100% of the population is covered, all kinds of unit are represented. |
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13.3.1.1. Over-coverage - rate | |||
There no over-coverage in the data. |
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13.3.1.2. Common units - proportion | |||
100% of the data come from the survey. |
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13.3.2. Measurement error | |||
The responding units and statistical experts are not exempted automatically from errors in reading, calculating and recording the numerical values. As the Excel questionnaire and summary files are not automated, these errors are verified and corrected manually. |
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13.3.3. Non response error | |||
0%. |
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13.3.3.1. Unit non-response - rate | |||
The unit non-response rate is 0%. |
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13.3.3.2. Item non-response - rate | |||
The item non-response rate is 0%. |
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13.3.4. Processing error | |||
Electricity price questionnaire for collecting primary data from the suppliers (retailers and network operators) is Excel formatted. At national level we aggregate manually all data in Summary Excel file where national data (previously checked and verified) are calculated by formulas and that is why no processing errors occurred. We do not use specific tool and calculations are not automated. |
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13.3.5. Model assumption error | |||
Not Applicable. |
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14.1. Timeliness | |||
Electricity providers that participate in the national data collection are requested to provide the electricity prices data within one month after the reference period. Because of the difficulties met by the respondents in the electricity price reporting, for the 2nd semester of 2021 the deadline to submit the data has been changed to 45 days after the reference period. After submission, NSI experts check the micro-data for correctness, consistency and completeness. 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 electricity price questionnaire for households for the 1st semester of 2019 was sent 89 days after the reference period. The first version of the electricity price questionnaire for households for the 2nd semester of 2019 was sent 90 days after the reference period. The first version of the electricity price questionnaire for households for the 1st semester of 2020 was sent 91 days after the reference period. The first version of the electricity price questionnaire for households for the 2nd semester of 2020 was sent 89 days after the reference period. The first version of the electricity price questionnaire for households for the 1st semester of 2021 was sent 91 days after the reference period. The first version of the electricity price questionnaire for households for the 2nd semester of 2021 was sent 90 days after the reference period. The first version of the electricity price questionnaire for non-households for the 1st semester of 2019 was sent 89 days after the reference period. The first version of the electricity price questionnaire for non-households for the 2nd semester of 2019 was sent 90 days after the reference period. The first version of the electricity price questionnaire for non-households for the 1st semester of 2020 was sent 91 days after the reference period. The first version of the electricity price questionnaire for non-households for the 2nd semester of 2020 was sent 89 days after the reference period. The first version of the electricity price questionnaire for non-households for the 1st semester of 2021 was sent 91 days after the reference period. The first version of the electricity price questionnaire for non-households for the 2nd semester of 2021 was sent 90 days after the reference period. |
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14.1.2. Time lag - final result | |||
For the 2021, 2020 and 2019 prices data cycles the time lag - final results coincides with the time lag - first results. |
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14.2. Punctuality | |||
The legal deadline for submitting the questionnaires is the third month after the reference period. |
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14.2.1. Punctuality - delivery and publication | |||
60 days between the delivery/release date of data Target date on which data is scheduled for delivery/release: 1st semester - 30th July/30th September 2nd semester - 30th January/30th March |
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15.1. Comparability - geographical | |||
Data are representative at national level and fully correspond with the requirements of the Regulation (EU) 2016/1952. |
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15.1.1. Asymmetry for mirror flow statistics - coefficient | |||
Not applicable |
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15.2. Comparability - over time | |||
Data has been comparable since the 1st semester of 2017. |
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15.2.1. Length of comparable time series | |||
No break in time series. |
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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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The amount of costs for Electricity price survey is estimated to: 2019 - 2993 EUR 2020 - 9178 EUR 2021 - 9893 EUR No specific survey on the burden of respondents. |
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17.1. Data revision - policy | |||
No revision policy is established for the organisation regarding these data. |
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17.2. Data revision - practice | |||
No planned revisions of data. Unplanned revisions are made in case of detecting different types of errors - technical errors, discrepancies with previous periods. |
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17.2.1. Data revision - average size | |||
No data revisions on electricity prices to final customers for the reference periods: 2021, 2020 and 2019. Households electricity prices collection: 0 Non-households electricity prices collection: 0. |
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18.1. Source data | |||
Prices datais provided by the electricity retailers and network operators. |
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18.2. Frequency of data collection | |||
Biannual for the periods January - June and July - December. |
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18.3. Data collection | |||
Survey is mandatory according to the annual National Statistical Programme. Data are collected using Excel questionnaire by email. |
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18.4. Data validation | |||
Procedures include:
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18.5. Data compilation | |||
Prices are calculated as a weighted average prices using Excel. For the purpose the actual supplied quantity of electricity and its invoiced value from each supplier by type of final customers and by consumption band are used. |
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18.5.1. Imputation - rate | |||
No imputations are performed related to the data. |
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18.6. Adjustment | |||
No adjustments carried out. |
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18.6.1. Seasonal adjustment | |||
Seasonable adjustments are not carried out. |
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