Energy statistics - quantities (nrg_quant)

National Reference Metadata in Single Integrated Metadata Structure (SIMS)

Compiling agency: National Bureau of Statistics of the Republic of Moldova


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)



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1. Contact Top
1.1. Contact organisation

National Bureau of Statistics of the Republic of Moldova

1.2. Contact organisation unit

Industry and Energy Statistics Division

1.5. Contact mail address

106 Grenoble Str., MD-2019 Chisinau, Republic of Moldova


2. Metadata update Top
21/07/2022
2.1. Metadata last certified 28/09/2022
2.2. Metadata last posted 28/09/2022
2.3. Metadata last update 21/07/2022


3. Statistical presentation Top
3.1. Data description

National Metadata about Energy Statistics

3.1.1. Data description – details and links to EU data collections
Name of the national data collection National body responsible List of variables included in this data collection Link to EU data collections (by frequency, energy product set, sector)
Consumption of energy products in households National Bureau of Statistics Characteristics of the dwellings (year of construction, dwelling type, the material of construction of the walls, type of insulation works, total dwelling space, heating dwelling space, type of used heating system, type of used water heating system, energy sources used to cook food); Energy consumption in households (quantity and amount procured of energy sources, collection/own production of energy sources, consumption ef energy sources for domestics needs); stock of energy sources.

Survey regarding energy consumption is organised one in every 5 years

The first survey was organized in 2016 (were colected data for 2015 year) - the result were published on the oficial page of NBS - https://statistica.md/pageview.php?l=en&id=5413&idc=350.

The second survey was organised in 2022 (were colected data for 2021 year) - the result will be bublished in november 2022.

Annually the results are estimated to the energy balance for the next 5 years

Annual

Annual renewables and wastes statistics

For the sectors below with some of the following energy products: Hydro power; Wind power; Solar photovoltaic; Solid biofuels; Biogases;

Consumption: Residential

Monthly data National Bureau of Statistics Production, import, export, stocks (beginning and end of the month), fuel consumption for electricity and heat production, gross consumption. Monthly

Monthly solid fuels statistics

For the sectors below with some of the following energy products: Hard coal;

Deliveries

Production

Trade (imports / exports)

Stocks

Monthly natural gas statistics

For the sectors below with some of the following energy products: natural gas

Deliveries to power generation

Production

Trade (imports / exports)

Stocks

Monthly oil statistics

For the sectors below with some of the following energy products: Crude oil; LPG; Motor gasoline; Aviation gasoline; Gasoline type jet fuel; Kerosene type jet fuel; Other kerosene; Other oil products;

Refinery output or production in case of crude oil

Direct use

Refineries (backflows and products transferred)

Trade (imports / exports)

Stocks

Short-term monthly

Short-term monthly oil statistics

For the sectors below with some of the following energy products: Crude oil; LPG; Gasoline; Total kerosene; Other products;

Refinery (intake and output)

Demand

Production

Trade (imports / exports)

Stocks

Annual data National Bureau of Statistics Production, import, export, stocks  (beginning and end of the year),  fuel consumption for electricity and heat production, capacities of plants, loss, purchase, sale of energy products, consumption to final consumers (all activities and residential sector). Annual

Annual solid fuels statistics

For the sectors below with some of the following energy products: Anthracite; Other bituminous coal;

Transformation sector

Production

Consumption: Energy sector

Consumption: Industry

Consumption: Transport

Consumption: Residential

Consumption: Other

Trade (imports / exports)

Stocks

Infrastructure

Calorific values

Annual electricity and heat statistics

For the sectors below with some of the following energy products: Hydro; Solar; Wind; Combustible fuels; Combustible fuels heat;

Production

Transformation sector

Consumption: Energy sector

Consumption: Industry

Consumption: Transport

Consumption: Residential

Consumption: Other

Trade (imports / exports)

Infrastructure

Calorific values

Annual natural gas statistics

For the sectors below and the following energy products: natural gas

Transformation sector

Production

Consumption: Energy sector

Consumption: Industry

Consumption: Transport

Consumption: Residential

Consumption: Other

Trade (imports / exports)

Stocks

Infrastructure

Calorific values

Annual oil and petroleum products statistics

For the sectors below with some of the following energy products: Crude oil; LPG; Motor gasoline; Aviation gasoline; Gasoline type jet fuel; Kerosene type jet fuel; Other kerosene; White spirit and SPB; Lubricants; Bitumen; Paraffin waxes; Other oil products;

Transformation sector / Refinery

Production

Consumption: Energy sector

Consumption: Industry

Consumption: Transport

Consumption: Residential

Consumption: Other

Trade (imports / exports)

Stocks

Infrastructure

Calorific values

Annual renewables and wastes statistics

For the sectors below with some of the following energy products: Hydro power; Wind power; Solar photovoltaic; Solid biofuels; Biogases;

Production

Transformation sector

Consumption: Energy sector

Consumption: Industry

Consumption: Transport

Consumption: Other

Trade (imports / exports)

Stocks

Infrastructure

Calorific values

3.2. Classification system

Nomenclature of energy products recommended by the International Recommendations for Energy Statistics (IRES), UN, 2011- https://unstats.un.org/unsd/energystats/methodology/documents/IRES-web.pdf

3.2.1. Classification system – industry sector, products and geographical
Name of the national data collection Industry sector Products Geographical
Consumption of energy products in households Not applicable Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Monthly data NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Annual data NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
3.3. Coverage - sector

Energy statistics data covers all major sectors of the economy that are involved in the production, trade, energy transformation or energy consumption.

3.4. Statistical concepts and definitions

Definitions of Regulation (EC) No 1099/2008 on energy statistics apply.

3.5. Statistical unit

See table under 3.5.1.

3.5.1. Statistical unit – Data collections
Name of the national data collection Reporting Unit
Consumption of energy products in households Household
Monthly data The Enterprise
Annual data The Enterprise
3.6. Statistical population

The survey is organized based on the functional principle and implies the survey of all units which produce, import, distribute, and finally consume energy sources regardless of their main activity of the economic unit – legal entity.

3.7. Reference area

National territory of the Republic of Moldova excluding the left part of the River Nistru and Bender municipality.

3.8. Coverage - Time

See table under 3.8.1.

3.8.1. Coverage time – Data collections

 

Name of the national data collection Coverage time
Consumption of energy products in households  2010 - 2020
Monthly data  2015 - 2020 
Annual data  1997 - 2020
3.9. Base period

Not applicable.


4. Unit of measure Top

See table under 4.1.

4.1. Unit of measure – data collections
Name of the national data collection Unit of measure
Consumption of energy products in households Tonnes, m3, kW
Monthly data Tonnes, MJ, m3, kW
Annual data Natural unit (Tonnes, MJ, m3, kW) and conventional energy units (oil equivalent, coal equivalent, Joules)


5. Reference Period Top

See table under 5.1

5.1. Reference period – data collections
Name of the national data collection Reference period
Consumption of energy products in households 1 year
Monthly data 1 month
Annual data 1 year


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

See table under 6.1.1.

6.1.1. National legal acts and other agreements
Name of the national data collection National legal framework Reference of national legal text
Consumption of energy products in households Mandatory (included in a national legal act)
Monthly data Mandatory (included in a national legal act)
Annual data Mandatory (included in a national legal act)
6.2. Institutional Mandate - data sharing

See table under 6.2.1.

6.2.1. Institutional mandate – data sharing – national data collections
Name of the national data collection Situation, if more than 1 body is involved in this data collection Degree of integration of this data collection among different National bodies
Consumption of energy products in households Coordination defined in a legal institutional framework Integrated questionnaires and classifications
Monthly data Coordination defined in a legal institutional framework Integrated questionnaires and classifications
Annual data Coordination defined in a legal institutional framework Integrated questionnaires and classifications


7. Confidentiality Top


Annexes:
Annex_Confidentiality in EU data collections
7.1. Confidentiality - policy

At EU level:

 

At national level:

7.2. Confidentiality - data treatment

Confidential data are not shown. The most common approach is to present only aggregation of the confidential data point with the non-confidential data that is the nearest suitable data point.

According to art. 19 of the Law on Official Statistics No. 93 dated 26.05.2017, producers of official statistics shall take all regulatory, administrative, technical and organizational measures to protect confidential data and prevent their disclosure.

Chapter VII of the above-mentioned law stipulates that the data collected, processed and stored for the production of statistical information are confidential if they allow the direct or indirect identification of the respondents. ) The following shall not be considered confidential:

a) data that can be obtained from publicly accessible sources according to the legislation;

b) individual data on address, telephone, name, type of activity, number of employees of legal entities and individual entrepreneurs;

c) data referring to public enterprises, institutions and organizations funded from the budget, submitted at the request of the public administration authorities.

According to the Law on Official Statistics, art. 20, access to confidential information is granted to the persons who, according to their official functions, participate in the production of statistical information shall have access to individual data in so far as individual data are necessary for producing this information.

The same article stipulates that the access to individual data, which do not allow the direct identification of respondents, may be given for scientific survey projects, whose expected results do not refer to identifiable individual units, under the regulation approved by the central statistical authority.

Art. 23 (5) of the Law stipulates that the the statistical information cannot be disseminated to users if it refers to 1-3 statistical units.

7.2.1. Confidentiality – EU data collections

EU DATA COLLECTION

CONFIDENTIAL DATA POINTS

Crude oil imports register – Short term monthly statistics

Yes

Oil and petroleum products – Short term monthly statistics

No

Natural gas - short term monthly statistics

No

Solid fuels - monthly statistics

No

Electricity - monthly statistics

No

Oil and petroleum products - monthly statistics

No

Natural gas - monthly statistics

No

Nuclear - annual statistics

Not available

Electricity and heat - annual statistics

No

Natural gas - annual statistics

No

Oil and petroleum products - annual statistics

No

Renewables and wastes - annual statistics

No

Solid fossil fuels and manufactured gases - annual statistics

No

Short Assessment of Renewable Energy Sources (SHARES)

No

Households - detailed annual statistics on final energy consumption

No


8. Release policy Top
8.1. Release calendar

According to the Program of statistical work data are available:

  • monthly - 35 days following the reported month
  • annualy - 30 September after the reported year
8.2. Release calendar access

The program of statistical work may be accessed on the web page https://statistica.gov.md/, under About NBS / Legislative and normative acts (https://statistica.gov.md/pageview.php?l=en&idc=323&)

8.3. Release policy - user access

The program of statistical work may be accessed on the web page https://statistica.gov.md/, under About NBS / Legislative and normative acts (https://statistica.gov.md/pageview.php?l=en&idc=323&)


9. Frequency of dissemination Top

See table under 9.1.

9.1. Frequency of dissemination – national data collections

 

Name of the national data collection Frequency of dissemination
Consumption of energy products in households  annual
Monthly data  monthly
Annual data  annual 


10. Accessibility and clarity Top
10.1. Dissemination format - News release

Currently, the Press release / Analytical Notes on energy statistics are not compiled.

10.2. Dissemination format - Publications

Publication developed by NBS covering statistical data on energy balance: “Energy Balance of the Republic of Moldova” (only in electronic format) - every year

 

10.3. Dissemination format - online database

Time series on energy balance indicators are placed:

- Statistical databank http://statbank.statistica.md/, under Economic statistics /  Energy resources

- NBS official page: www.statistica.gov.md, under

10.3.1. Data tables - consultations

Not requested for this metadata collection

10.4. Dissemination format - microdata access

Not available

10.5. Dissemination format - other

Not available

10.5.1. Metadata - consultations

Not requested for this metadata collection

10.6. Documentation on methodology

1. Consumption of energy products in households

Links to quality and methodology documentation (reference material on methods and questionnaires used): National Bureau of Statistics // Publications (gov.md)

Link to national metadata: National Bureau of Statistics // Publications (gov.md)

 

2. Reference metadata:

Monthly data - Short-term indicators in enery

Annual data - Energy balance

 

3. Methodology documentation - https://statistica.gov.md/public/files/Metadate/alte/Metodologie_energetica.pdf (only in Romanian)

10.6.1. Metadata completeness - rate

Not requested for this metadata collection

10.7. Quality management - documentation

Global Assesment of the National Statistical System of the Republic of Moldova - https://statistica.gov.md/public/files/despre/evaluare_opinii/externe/GA_Moldova_Final_Report_2019.pdf


11. Quality management Top
11.1. Quality assurance

Not available

11.2. Quality management - assessment

See table under 11.2.1.

11.2.1. Quality assessment – data collections
Name of the national data collection Most important quality problem of this data collection Measures taken in the last 5 years to improve quality of the data collection
Consumption of energy products in households   Carrying out survey in households, estimating the quantities of biofuels used in households, for 2010-2020
Monthly data   The monthly survey was introduced in 2015.
Annual data Sample too high. Introducing sampling survey for the service sector.  


12. Relevance Top

All data are made available on NBS`s web site - https://statistica.gov.md/.

12.1. Relevance - User Needs

All data are made available on NBS`s web site - https://statistica.gov.md/.

12.2. Relevance - User Satisfaction

Not available

12.3. Completeness

The statistics are in compliance with the volumes and deadlines of Regulation (EC) No 1099/2008 of the European Parliament and of the Council of 22 October 2008.

12.3.1. Data completeness - rate

See table under 12.3.1.1.

12.3.1.1. Data completeness - rate – EU data collections

EU DATA COLLECTION

DATA COMPLETENESS - RATE

NUMBER OF MISSING DATA POINTS

Crude oil imports register – Short term monthly statistics

100%

 

Oil and petroleum products – Short term monthly statistics

100% 

 

Natural gas - short term monthly statistics

100% 

 

Solid fuels - monthly statistics

100% 

 

Electricity - monthly statistics

100% 

 

Oil and petroleum products - monthly statistics

100%

 

Natural gas - monthly statistics

100% 

 

Nuclear - annual statistics

 -

 

Electricity and heat - annual statistics

100% 

 

Natural gas - annual statistics

100% 

 

Oil and petroleum products - annual statistics

100% 

 

Renewables and wastes - annual statistics

100% 

 

Solid fossil fuels and manufactured gases - annual statistics

100% 

 

SHort Assessment of Renewable Energy Sources (SHARES)

100% 

 

Households - detailed annual statistics on final energy consumption

100%

 


13. Accuracy Top


Annexes:
Accuracy indicators
13.1. Accuracy - overall

See table under 13.1.1.

13.1.1. Accuracy – most common errors for specific data collections
Name of the national data collection Most common errors for this collection
Consumption of energy products in households
  • Measurement errors
  • Processing errors
Monthly data
  • Measurement errors
  • Processing errors
Annual data
  • Measurement errors
  • Processing errors
13.2. Sampling error

Not applicable

13.2.1. Sampling error - indicators

Not requested for this metadata collection

13.3. Non-sampling error

Informations is included in the sub-concepts 13.3.1. - 13.3.5.

13.3.1. Coverage error

Not applicable

13.3.1.1. Over-coverage - rate

Not applicable

13.3.1.2. Common units - proportion

Not applicable

13.3.2. Measurement error

Not applicable

13.3.3. Non response error

Not applicable

13.3.3.1. Unit non-response - rate

Not applicable

13.3.3.2. Item non-response - rate

Not applicable

13.3.4. Processing error

Not applicable

13.3.5. Model assumption error

Not applicable


14. Timeliness and punctuality Top
14.1. Timeliness

According to the Program of statistical work data are available:

  • monthly - 35 days following the reported month
  • annualy - 30 September after the reported year

 

14.1.1. Time lag - first result

Not requested for this metadata collection.

14.1.2. Time lag - final result

Annually - data are final when disseminated for the first time.

Monthly - for the first dissemination, data are provisional, with a possibility of revision in the next month, if any corrections are made by the agents.

14.1.3. Timeliness – deadlines for data transmission for each national data collection
Name of the national data collection Deadline for data transmission
Consumption of energy products in households 11 months after the end of the reference period
Monthly data 2 months  after the end of the reference period
Annual data 10 months after the end of the reference period
14.2. Punctuality

100% delivered on time

14.2.1. Punctuality - delivery and publication

Not requested for this metadata collection.


15. Coherence and comparability Top
15.1. Comparability - geographical

The informations is developed and disseminated without the data of the entreprises and organisations from the left part of the River Nistru and Bender municipality.

15.1.1. Asymmetry for mirror flow statistics - coefficient

Not requested for this metadata collection.

15.2. Comparability - over time

Monthly - time series are available, including on the NBS site, starting with 2015.

Annually - Beginning with 2010 Energy balance of the Republic of Moldova is presented in accordance with international standards (IEA, UN, Eurostat) in conventional energy units (oil equivalent, coal equivalent, Joules).

15.2.1. Length of comparable time series

Monthly - time series are available, including on the NBS site, starting with 2015.

Annually - Beginning with 2010 Energy balance of the Republic of Moldova is presented in accordance with international standards (IEA, UN, Eurostat) in conventional energy units (oil equivalent, coal equivalent, Joules).

15.3. Coherence - cross domain

Comparability is ensured

15.3.1. Coherence - sub annual and annual statistics

Comparability is ensured

15.3.2. Coherence - National Accounts

Not applicable

15.4. Coherence - internal

Comparability is ensured


16. Cost and Burden Top

Not applicable


17. Data revision Top
17.1. Data revision - policy

No revision policy adopted

17.2. Data revision - practice

Link to revision policy/practice for Monthly data and Annual data: Energy Balance (gov.md).

17.2.1. Data revision - average size

Not requested for this metadata collection.


18. Statistical processing Top
18.1. Source data

Monthly - data collection is based on the monthly statistical survey according to the statistical report 1-RE “Stocks, inputs and consumption of basic energy resources”

Annually - data are collected based on the annual statistical survey according to the statistical report 1-BE “Energy Balance”

18.1.1. Source data – data collections
Name of the national data collection Main data collection method Target population Population frame Sample size
Consumption of energy products in households Household survey 1200000 1200000 3500
Monthly data Business survey with threshold 290 290 290
Annual data Business survey with threshold 55000 55000 21000
18.2. Frequency of data collection

See table under 18.2.1.

18.2.1. Frequency of data collection – national data collections
Name of the national data collection Frequency of transmission
Consumption of energy products in households Once per year
Monthly data Once per month
Annual data Once per year
18.3. Data collection

Monthly - the collecting method is self-registration performed by economic units and submission of the statistical report to the statistical territorial office – by the 25th of the month following the report.

Annually - the collecting method is self-registration performed by economic units and submission of the statistical report to the statistical territorial office – by March 31 of the year following the reported year.

18.4. Data validation

See table under 18.4.1.

18.4.1. Data validation – national data collections
Name of the national data collection Operations performed to this collection in order to improve data quality (e.g. checks between monthly, quarterly and annual, verification of time series, investigation of outliers…)
Consumption of energy products in households Data were controlled with multiple diverse techniques like: cross-checking controls, logical controls, mathematical, etc.;  The data obtained were compared and calebrated with to the annual data collected from the main suppliers of energy sources.
Monthly data Data were controlled with multiple diverse techniques like: cross-checking controls, logical controls, mathematical, etc.; NBS make comparison with previous month data; Data received from Department for external trade (NBS) and from main reporting units are compared and corrected, if are noticed major differences or incosistences in data we address  to our Department for external trade for clearification.
Annual data Data were controlled with multiple diverse techniques like: cross-checking controls, logical controls, mathematical, etc.; NBS makes comparison between monthly and annual data for same reporting legal units  in monthly and annual surveys. NBS make comparison with historical data; Data received from Department for external trade (NBS) and from main reporting units are compared and corrected, if are noticed major differences or incosistences in data we address  to our Department for external trade for clearification.
18.5. Data compilation

See table under 18.5.2.

18.5.1. Imputation - rate

Not requested for this metadata collection

18.5.2. Data compilation – data collections
Name of the national data collection Additional techniques used for the compilation of the final data set Details
Consumption of energy products in households
  • Imputing missing/non-response rate
  • Estimation techniques
  • Cross-checking techniques
  • Grossing up the sample
  • Incorrect data is adjusted or corrected
  • Adjustment due to different units/concepts
Survey on energy consumption in households, 2015, was conducted in 2016, whole time serie from 2010-2014 was revised in accordance with data from survey. The data obtained were compared and calebrated with to the annual data collected from the main suppliers of energy sources.
Monthly data
  • Incorrect data is adjusted or corrected
  • Adjustment due to different units/concepts
NBS make comparison with data from previous month; Data received from Department for external trade (NBS) and from main reporting units are compared and corrected. Import, export data from Customs administration are processed and analyized in Department for external trade (NBS).
Annual data
  • Incorrect data is adjusted or corrected
  • Adjustment due to different units/concepts
NBS make comparison with data from previous years; Data received from Department for external trade (NBS) and from main reporting units are compared and corrected. Import, export data from Customs administration are processed and analyized in Department for external trade (NBS).
18.6. Adjustment

Not applicable.

18.6.1. Seasonal adjustment

Not applicable.


19. Comment Top


Related metadata Top


Annexes Top