Energy statistics - heating degree-days (nrg_esdgr)

Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: Eurostat, the statistical office of the European Union

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. Dissemination format
11. Accessibility of documentation
12. Quality management
13. Relevance
14. Accuracy
15. Timeliness and punctuality
16. Comparability
17. Coherence
18. Cost and Burden
19. Data revision
20. Statistical processing
21. Comment
Related Metadata
Annexes (including footnotes)

For any question on data and metadata, please contact: EUROPEAN STATISTICAL DATA SUPPORT


1. Contact Top
1.1. Contact organisation Eurostat, the statistical office of the European Union
1.2. Contact organisation unit Unit E5 (Energy Statistics)
1.5. Contact mail address 2920 Luxembourg LUXEMBOURG

2. Metadata update Top
2.1. Metadata last certified 09/04/2010
2.2. Metadata last posted 09/04/2010
2.3. Metadata last update 04/10/2010

3. Statistical presentation Top
3.1. Data description

Consumption of energy depends strongly on weather conditions. If the temperature decreases below a certain value, "heating threshold", more energy is consumed due to increased need for space heating.

Taking this into account, Eurostat launched a project aiming at the development and implementation of a common method for the climatic correction of final energy consumption for space heating purposes in the 27 Member States of the European Union. Temperature corrected energy consumption data help interpretating energy consumption trends.

3.2. Classification system

Not available.

3.3. Coverage - sector

Not available.

3.4. Statistical concepts and definitions

ADD: Actual heating degree-days express the severity of the cold in a specific time period taking into consideration outdoor temperature and room temperature.

To establish a common and comparable basis, Eurostat defined the following method for the calculation of heating degree days

(18 °C - Tm) x d if Tm is lower than or equal to 15 °C (heating  threshold)

and are nil if Tm is greater than 15 °C

where Tm is the mean (Tmin  + Tmax / 2) outdoor temperature over a period of d days. Calculations are to be executed on a daily basis (d=1), added up to a calendar month -and subsequently to a year- and published for each Member State separately.

MDD25: Mean heating degree-days over period 1980 - 2004. MDD25 is the average of corresponding months or years of the reference period.

RDD25: Relative degree days. RDD25 is the ratio between ADD and MDD25

3.5. Statistical unit

Heating degree-days are at national and NUTS-2 level (NUTS-3 level for some areas of UK and DK).

3.6. Statistical population


3.7. Reference area

Annual and monthly data series cover EU Member States, Norway, Turkey, Croatia, Switzerland, Liechtenstein and Iceland

3.8. Coverage - Time
Data is available since 1980.
3.9. Base period


4. Unit of measure Top

Data are recorded in absolute values.

5. Reference Period Top

The reference period is the calendar month.

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


6.2. Institutional Mandate - data sharing


7. Confidentiality Top
7.1. Confidentiality - policy

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.

7.2. Confidentiality - data treatment

These data are not confidential.

8. Release policy Top
8.1. Release calendar
The online database is updated each month.
8.2. Release calendar access

As per availability

8.3. Release policy - user access

In line with the Community legal framework and the European Statistics Code of Practice Eurostat disseminates European statistics on Eurostat's website (see item 10 - 'Dissemination format') respecting professional independence and in an objective, professional and transparent manner in which all users are treated equitably. The detailed arrangements are governed by the Eurostat protocol on impartial access to Eurostat data for users.

9. Frequency of dissemination Top

The data is disseminated on a monthly base.

10. Dissemination format Top
10.1. Dissemination format - News release

News releases on-line.

10.2. Dissemination format - Publications


10.3. Dissemination format - online database

Please consult free data on-line or refer to contact details.

10.4. Dissemination format - microdata access


10.5. Dissemination format - other

Panorama of Energy
Internet address:

11. Accessibility of documentation Top
11.1. Documentation on methodology


11.2. Quality management - documentation


12. Quality management Top
12.1. Quality assurance


12.2. Quality management - assessment


13. Relevance Top
13.1. Relevance - User Needs


13.2. Relevance - User Satisfaction


13.3. Completeness


14. Accuracy Top
14.1. Accuracy - overall

The accuracy of the basic data depends on the quality of the measurements.

14.2. Sampling error


14.3. Non-sampling error


15. Timeliness and punctuality Top
15.1. Timeliness
Monthly data should be disseminated about one month after the reference period, depending on data deliveries.
15.2. Punctuality


16. Comparability Top
16.1. Comparability - geographical

The methodology is harmonised for all EU countries.

16.2. Comparability - over time

There is no principle change of methodology over time since these are physical measurements.

17. Coherence Top
17.1. Coherence - cross domain


17.2. Coherence - internal

Comparable measurements systems ensure internal coherence; temperature measurements are independent from one another.

18. Cost and Burden Top


19. Data revision Top
19.1. Data revision - policy


19.2. Data revision - practice


20. Statistical processing Top
20.1. Source data

Data are received directly from the JRC IPSC/Agrifish Unit/MARS-STAT Action.

20.2. Frequency of data collection


20.3. Data collection
Data is transmitted to Eurostat via e-mail.
20.4. Data validation

Data are checked for consistency and that they can correspond to a physical reality.

Whenever questionable data is received, our data providers are normally contacted per phone or e-mail to cross-check the validity of data.

20.5. Data compilation

Data are recorded in absolute values.

20.6. Adjustment

For specific regions and months/years empirical estimations have been used, namely for

  • Sweden (SE01 for 1992, 1993 and 1994; SE02 for 1994, SE07 for 1994, SE08 for 1994),
  • Finland (FI19 for 1992 and 1993; FI20 for 1992 and 1993),
  • Norway (NO01, NO02, NO05 and NO06 for 1994) and
  • Turkey (TR42 for 1981, TR51 for 1980 and 1981, TR63 for 1980 - 1982, TR71 for 1980 and 1981, TR72 for 1980 and 1981, TR81 for 1980 and 1981, TR82 for 1980 and 1981, TR83 for 1980 and 1981, TRC1 for 1980 - 1982, TRC2 for 1980 - 1982, TRC3 for 1980 - 1982).

21. Comment Top


Related metadata Top

Annexes Top