National Statistical Institute

'Environmental and Energy Accounts' Department

Luba Yaneva - Renewables and wastes

Irina Dencheva - Electricity and heat

State Expert

Chief Expert

2, P. Volov Str. Sofia 1038, Bulgaria

lyaneva@nsi.bg

idencheva@nsi.bg

+359 2 9857 621

+359 2 9857 625

Energy balances of renewable energy sourcrs (RES) present data on resources, transformation and final consumption of energy from renewable sources. Include detailed indicators for fuels used and produced fuels/energy from transformation processes. Final energy consumption is presented by economic activity groups (according to the used by Eurostat structure), which ensure international comparison of data.

• National Classification of Economic Activities (NCEA-2003, for international use NACE.BG-2003) is valid to 2007
• Classification of Economic Activities (CEA-2008, for international use NACE.BG-2008) in force as of 2008
• Nomenclature of energy products as part of Nomenclature of Industrial Production (PRODCOM.BG) is valid to 2007
• Nomenclature of energy products (PRODENERGY) in force as of 2008.

Includes data from all producers, importers and exporters, and consumers of primary and transformed energy products of all economic activities in accordance with the Regulation (ЕО) № 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics.

Included balances of the following renewable energy products:

• Hydro
• Wind
• Solar photovoltaic
• Solar thermal
• Geothermal
• Primary solid biofuels
• Charcoal
• Biogases
• Renewable waste
• Liquid biofuels
• Ambient heat (heat pumps).

• Primary energy
• Transformed energy
• Final consumption of energy.

For the five, surveys used to collect data for preparation of the Energy Balances of RES, the statistical unit is enterprise.

All economic entities that produce, import and/ or export, store and consume renewable energy products.

For the territory of the Republic of Bulgaria.

Since 2007.

Not applicable.

Common unit of measure: thousand tons of oil equivalent.

Year

Regulation (EC) No 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics and its amendments (consolidated version):

https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:02008R1099-20200105&from=EN

Data are provided to Eurostat, the International Energy Agency and the United Nations Economic Commission for Europe.

• Law on Statistics
• Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society:

http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2009:087:0164:0173:EN:PDF

According Art. 25 of the Law on Statistics individual data are not published (they are suppressed). Dissemination of individual data is possible according to Art. 26 of the Law on Statistics.

Energy balances of RES are published on 30 November of the year following the reporting year.

The calendar is available on the NSI website: http://www.nsi.bg/en/node/480

Energy balances of RES are published on the NSI website, section 'Energy' in accordance with the Law on Statistics (Chapter 5) and the European Statistics Code of Practice respecting the professional independence and with aimed at objectivity, transparency and equal treatment of all consumers.

Annual

Not applicable.

• Electronic publication 'Energy balance sheets'
• Statistical Yearbook
• Statistical Reference Book
• 'Bulgaria' (brochure)

Energy balances of RES are available to all users of the NSI website under the section 'Environment and energy', rubric 'Energy' - Renewable energy sources: http://www.nsi.bg/en/node/5016, as well as in Information system for statistical information online requests 'INFOSTAT', section 'Environment and energy',  rubric 'Energy' - Renewable energy sources: https://infostat.nsi.bg/infostat/pages/external/login.jsf

Not applicable.

Information service upon request according to the Rules for dissemination of statistical products and services.

Annexes A and B of the Regulation (EC) No 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics and its amendments. 

Quality report for the data from the statistical surveys, conducted in accordance with the requirements of Regulation (EC) № 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics and its amendments - prepared on every 5 years.

Data from all surveys are validated and corrected by the NSI in case of established inaccuracies.

Following the reporting of the data, Eurostat and the International Energy Agency carry out data validation procedures, after which, if necessary, the NSI sends additional clarifications related to the reported data, or make corrections in case of an error.

Energy balances of RES are comparable with the information prepared by the other Member states as it is produced according to a unified methodology.

Information is used for analytical, forecasting and management purposes by Ministries and other organizations, companies and citizens.

No consumer satisfaction survey was conducted.

Data fully meet the requirements of the Regulation (EC) No 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics in terms of the observed indicators, scope of energy products and structure of consumption.

Not applicable.

Not applicable.

Data from respondents, for the preparation of Energy balances of RES, are collected six months after the reporting year. Analysis, verification, processing and preparation of the Energy balances are carried out untill the end of November following the reporting year.

Data are published on the dates indicated in the Release Calendar presenting the results of the statistical surveys of the NSI.

Data are comparable with the data of the EU Member States for the entire period - from 2007.

Data are geographically comparable for the entire period for which they are available - since 2007.

Data are comparable over time for the entire period for which they are available - since 2007.

Partial coordination with the annual data in the field of Environmental statistics.

Data for the indicators Import (Entries) and Exports (Exits) are consistent with the data of External Trade in Goods Statistics for the respective year, except in cases where methodological differences between the two areas exist.

For certain indicators and energy products, consistency of data is sought between the individual surveys in the field of Energy Statistics.

Costs related to the collection and production of statistical data are announced annually in the National Statistical Program.

No specific studies on the burden of the respondents.

No established official policy for data revision.

Revision is made as a result of changes in the used classifications, methodologies, or when establishing incorrect data - omissions or inaccuracies in the data presented by the respondents.

Main data sources for the compilation of the energy balances of RES are statistical surveys for energy products (included in the National Statistical Programme), collecting data by producers, importers and exporters, and consumers of fuels/energy, as well as information from administrative sources.

Annual

Information is provided by conducting statistical surveys on energy products online or through electronic forms:

• Consumption of fuel and energy - online by “Business Statistics” Information System
• Production and sales of energy products - online by “Business Statistics” Information System
• Electricity and heat generation - by email
• Deliveries of liquid biofuels - by email
• Characteristics of solar collectors - by email.

A comparative analysis of the data from respondents is made with the data from other statistical surveys, with administrative data and with data from the previous periods. Validated primary data are used for construction and preparation of energy balances of RES. Each energy product has its own specificity and reporting methodology, so the data analysis is done for each energy balance individually for all indicators.

Statistical difference between resource and consumption of every balance should be reduced below 5 %.

The validated (ready) Energy balances of RES in natural units are recalculated in energy measure Terajoule. For the purpose, calorific value of each energy product is used, and for some indicators - the weighted average calorific value. Data obtained in Terajoules is multiplied by the conversion factor for recalculation to a common unit of measurement thousand tons of oil equivalent - 0.023885, which allows comparability between different renewable products.

Not applicable.

National Statistical Institute

'Environmental and Energy Accounts' Department

Luba Yaneva - Renewables and wastes

Irina Dencheva - Electricity and heat

State Expert

Chief Expert

2, P. Volov Str. Sofia 1038, Bulgaria

lyaneva@nsi.bg

idencheva@nsi.bg

+359 2 9857 621

+359 2 9857 625

Energy balances of renewable energy sourcrs (RES) present data on resources, transformation and final consumption of energy from renewable sources. Include detailed indicators for fuels used and produced fuels/energy from transformation processes. Final energy consumption is presented by economic activity groups (according to the used by Eurostat structure), which ensure international comparison of data.

• National Classification of Economic Activities (NCEA-2003, for international use NACE.BG-2003) is valid to 2007
• Classification of Economic Activities (CEA-2008, for international use NACE.BG-2008) in force as of 2008
• Nomenclature of energy products as part of Nomenclature of Industrial Production (PRODCOM.BG) is valid to 2007
• Nomenclature of energy products (PRODENERGY) in force as of 2008.

Includes data from all producers, importers and exporters, and consumers of primary and transformed energy products of all economic activities in accordance with the Regulation (ЕО) № 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics.

Included balances of the following renewable energy products:

• Hydro
• Wind
• Solar photovoltaic
• Solar thermal
• Geothermal
• Primary solid biofuels
• Charcoal
• Biogases
• Renewable waste
• Liquid biofuels
• Ambient heat (heat pumps).

• Primary energy
• Transformed energy
• Final consumption of energy.

For the five, surveys used to collect data for preparation of the Energy Balances of RES, the statistical unit is enterprise.

All economic entities that produce, import and/ or export, store and consume renewable energy products.

For the territory of the Republic of Bulgaria.

Since 2007.

Not applicable.

Main data sources for the compilation of the energy balances of RES are statistical surveys for energy products (included in the National Statistical Programme), collecting data by producers, importers and exporters, and consumers of fuels/energy, as well as information from administrative sources.

Annual

Information is provided by conducting statistical surveys on energy products online or through electronic forms:

• Consumption of fuel and energy - online by “Business Statistics” Information System
• Production and sales of energy products - online by “Business Statistics” Information System
• Electricity and heat generation - by email
• Deliveries of liquid biofuels - by email
• Characteristics of solar collectors - by email.

A comparative analysis of the data from respondents is made with the data from other statistical surveys, with administrative data and with data from the previous periods. Validated primary data are used for construction and preparation of energy balances of RES. Each energy product has its own specificity and reporting methodology, so the data analysis is done for each energy balance individually for all indicators.

Statistical difference between resource and consumption of every balance should be reduced below 5 %.

The validated (ready) Energy balances of RES in natural units are recalculated in energy measure Terajoule. For the purpose, calorific value of each energy product is used, and for some indicators - the weighted average calorific value. Data obtained in Terajoules is multiplied by the conversion factor for recalculation to a common unit of measurement thousand tons of oil equivalent - 0.023885, which allows comparability between different renewable products.

Not applicable.

Data from all surveys are validated and corrected by the NSI in case of established inaccuracies.

Following the reporting of the data, Eurostat and the International Energy Agency carry out data validation procedures, after which, if necessary, the NSI sends additional clarifications related to the reported data, or make corrections in case of an error.

Energy balances of RES are comparable with the information prepared by the other Member states as it is produced according to a unified methodology.

Information is used for analytical, forecasting and management purposes by Ministries and other organizations, companies and citizens.

No consumer satisfaction survey was conducted.

Data fully meet the requirements of the Regulation (EC) No 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics in terms of the observed indicators, scope of energy products and structure of consumption.

Number of data cells provided is equal to the number of data cells required, according to the specifics of each energy product.

Not applicable.

Not applicable.

Not applicable.

Not applicable.

No over-coverage.

Very high share of the common units, as the respondents for the indicators Import (Entries) and Exports (Exits) for the annual surveys are determined on the basis of data from administrative sources.

Cases of incorrect or partially missing data, which are corrected during the data verification.

No non-response errors.

Not applicable.

Not applicable.

No processing errors.

Not applicable.

Not applicable.

Not applicable.

No established official policy for data revision.

Revision is made as a result of changes in the used classifications, methodologies, or when establishing incorrect data - omissions or inaccuracies in the data presented by the respondents.

Not applicable.

Data from respondents, for the preparation of Energy balances of RES, are collected six months after the reporting year. Analysis, verification, processing and preparation of the Energy balances are carried out untill the end of November following the reporting year.

Not applicable.

Data are published 11 months after the last day of the reporting year.

Data are published on the dates indicated in the Release Calendar presenting the results of the statistical surveys of the NSI.

Data are submitted in time according to the Release Calendar presenting the results of the statistical surveys of the NSI.

Data are comparable with the data of the EU Member States for the entire period - from 2007.

Data are geographically comparable for the entire period for which they are available - since 2007.

Not applicable.

Data are comparable over time for the entire period for which they are available - since 2007.

Time series with no breaks for the period from 2007 to the last reporting year.

Partial coordination with the annual data in the field of Environmental statistics.

Data for the indicators Import (Entries) and Exports (Exits) are consistent with the data of External Trade in Goods Statistics for the respective year, except in cases where methodological differences between the two areas exist.

Not applicable.

Not applicable.

For certain indicators and energy products, consistency of data is sought between the individual surveys in the field of Energy Statistics.

Not applicable.

• Electronic publication 'Energy balance sheets'
• Statistical Yearbook
• Statistical Reference Book
• 'Bulgaria' (brochure)

Energy balances of RES are available to all users of the NSI website under the section 'Environment and energy', rubric 'Energy' - Renewable energy sources: http://www.nsi.bg/en/node/5016, as well as in Information system for statistical information online requests 'INFOSTAT', section 'Environment and energy',  rubric 'Energy' - Renewable energy sources: https://infostat.nsi.bg/infostat/pages/external/login.jsf

Not applicable.

Not applicable.

Information service upon request according to the Rules for dissemination of statistical products and services.

Not applicable.

Annexes A and B of the Regulation (EC) No 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics and its amendments. 

Metadata elements provided match the total number of metadata elements applied.

Quality report for the data from the statistical surveys, conducted in accordance with the requirements of Regulation (EC) № 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics and its amendments - prepared on every 5 years.

Costs related to the collection and production of statistical data are announced annually in the National Statistical Program.

No specific studies on the burden of the respondents.

• Law on Statistics
• Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society:

http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2009:087:0164:0173:EN:PDF

According Art. 25 of the Law on Statistics individual data are not published (they are suppressed). Dissemination of individual data is possible according to Art. 26 of the Law on Statistics.