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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | Ministry of Environment and Energy |
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1.2. Contact organisation unit | Department of Statistics |
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1.5. Contact mail address | Mesogeion Av. 119, 101 92, Athens, Greece |
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2.1. Metadata last certified | 14/06/2022 | ||
2.2. Metadata last posted | 14/06/2022 | ||
2.3. Metadata last update | 14/06/2022 |
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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,etc). |
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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:
For the final non-household sector, the bands are:
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:
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:
In addition to these elements, the network cost is split into the respective shares of transmission and distribution. VAT is refundable for non-household sector.
For the household sector:
For the non-household sector:
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3.5. Statistical unit | ||||||||||||||||||||||||||
Household and final non-household consumers divided into consumption bands. |
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3.6. Statistical population | ||||||||||||||||||||||||||
Household customers: Data coming from 14 suppliers out of 18 and representing 96% of the household customers. Final non-household customers: Data coming from 14 suppliers out of 18 and representing 96% of the final non-household customers. |
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3.7. Reference area | ||||||||||||||||||||||||||
The reference area is the whole country. |
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3.8. Coverage - Time | ||||||||||||||||||||||||||
Electricity prices data for Greece are available since 1991. |
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3.9. Base period | ||||||||||||||||||||||||||
Not applicable. |
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Prices are reported in national currency per kWh. However, Eurostat also calculates and publishes the prices in EURO and PPS (purchasing power parity). |
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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). |
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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 should not allow identification of single consumers. If a single price is requested or is to be announced or published,when disaggregated data include confidential prices, the single price is calculated as a consumption - weighted average price. |
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8.1. Release calendar | |||
The precise date of data release is disseminated on Eurostat's website. |
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8.2. Release calendar access | |||
Not applicable. |
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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 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. Data are also published by the IEA. |
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Electricity prices in Greece are published on a semestrial basis on Eurostat's website and IEA's publications. |
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10.1. Dissemination format - News release | |||
Not available at national level. |
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10.2. Dissemination format - Publications | |||
Not available at national level. |
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10.3. Dissemination format - online database | |||
Not available at national level. |
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10.3.1. Data tables - consultations | |||
Not available. |
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10.4. Dissemination format - microdata access | |||
Micro-data could be disseminated only if confidentiality rules are followed. |
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10.5. Dissemination format - other | |||
Not available. |
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10.5.1. Metadata - consultations | |||
Not available. |
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10.6. Documentation on methodology | |||
Being a member of the Hellenic Statistical System we implement the national quality assurance framework of statistics. Regulation on the Statistical Obligations of the Agencies of the Hellenic Statistical System
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10.6.1. Metadata completeness - rate | |||
Not available. |
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10.7. Quality management - documentation | |||
Being a member of the Hellenic Statistical System we implement the national quality assurance framework of statistics. Regulation on the Statistical Obligations of the Agencies of the Hellenic Statistical System |
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11.1. Quality assurance | |||
The Quality asssurance framework is described in the Regulation on the Statistical Obligations of the agencies of the Hellenic Statistical System |
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11.2. Quality management - assessment | |||
An annual report on the outcome of the statistical work programme of the previous year is submitted to the NSI. |
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12.1. Relevance - User Needs | |||
The data produced are an important source of information for domestic and international users (government agencies, research institutions, international organizations, etc.). |
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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 sets are complete. |
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12.3.1. Data completeness - rate | |||
All data required by Eurostat are provided.
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13.1. Accuracy - overall | |||
The outliers, concerning the submitted data, are double checked. |
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13.2. Sampling error | |||
Due to the high percentage of the population represented, the sampling error is considered negligible. |
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13.2.1. Sampling error - indicators | |||
As the sampling error is considered negligible, no precision measures are 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 | |||
Due to high percentage of the population covered, all kinds of units are well represented. |
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13.3.1.1. Over-coverage - rate | |||
We are not aware of any over-coverage in the data. |
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13.3.1.2. Common units - proportion | |||
All the data are based on a census process. |
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13.3.2. Measurement error | |||
As the system is not fully automated, measurement errors are possible but the rate of this kind of errors is not assessed and the errors are detected through different kind of outliers detection. Outliers are double checked. |
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13.3.3. Non response error | |||
Two of 18 data providers did not respond,which corresponds to 2.5% of the total consumption.
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13.3.3.1. Unit non-response - rate | |||
Household customers: 2 out of 18 suppliers did not respond, representing 2.5% of the household customers. Final non-household customers: 2 out of 18 suppliers did not respond, representing 2.5% of the final non-household customers. |
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13.3.3.2. Item non-response - rate | |||
Item non-response rate is 0%. |
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13.3.4. Processing error | |||
As the system is not fully automated, Processing errors are possible but the rate of this kind of errors is not assessed and the errors are detected through different kind of outliers detection. Outliers are double checked. |
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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 price data within 2 months after the reference period. After arrival, the Department 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. |
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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 (27.09.2019). The first version of the electricity price questionnaire for households for the 2nd semester of 2019 was sent 91 days after the reference period (31.03.2020). The first version of the electricity price questionnaire for households for the 1st semester of 2020 was sent 90 days after the reference period (28.09.2020). The first version of the electricity price questionnaire for households for the 2nd semester of 2020 was sent 88 days after the reference period (29.03.2021). The first version of the electricity price questionnaire for households for the 1st semester of 2021 was sent 91 days after the reference period (29.09.2021). The first version of the electricity price questionnaire for households for the 2nd semester of 2021 was sent 89 days after the reference period (30.03.2022). 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 (27.09.2019) The first version of the electricity price questionnaire for non-households for the 2nd semester of 2019 was sent 91 days after the reference period (31.03.2020). The first version of the electricity price questionnaire for non-households for the 1st semester of 2020 was sent 90 days after the reference period (28.09.2020). The first version of the electricity price questionnaire for non-households for the 2nd semester of 2020 was sent 88 days after the reference period (29.03.2021). 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 (29.09.2021). The first version of the electricity price questionnaire for non-households for the 2nd semester of 2021 was sent 89 days after the reference period (30.03.2022). |
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14.1.2. Time lag - final result | |||
The revised version of the electricity price questionnaire for households for the 1st semester of 2019 was sent 291 days after the reference period, 202 days after the first version and 199 days after the mandatory deadline (16.04.2020). The revised version of the electricity price questionnaire for households for the 2nd semester of 2019 was sent 107 days after the reference period, 16 days after the first version and 16 days after the mandatory deadline (16.04.2020). The revised version of the electricity price questionnaire for households for the 1st semester of 2020 was sent 272 days after the reference period, 182 days after the first version and 180 days after the mandatory deadline (29.03.2021). The revised version of the electricity price questionnaire for households for the 1st semester of 2021 was sent 273 days after the reference period, 182 days after the first version and 181 days after the mandatory deadline (30.03.2022). The revised version of the electricity price questionnaire for non households for the 1st semester of 2019 was sent 291 days after the reference period, 202 days after the first version and 199 days after the mandatory deadline (16.04.2020). The revised version of the electricity price questionnaire for non households for the 2nd semester of 2019 was sent 107 days after the reference period, 16 days after the first version and 16 days after the mandatory deadline (16.04.2020). The latest revised version of the electricity price questionnaire for non households for the 1st semester of 2020 was sent 316 days after the reference period, 226 days after the first version and 224 days after the mandatory deadline (12.05.2021). The latest revised version of the electricity price questionnaire for non households for the 2nd semester of 2020 was sent 132 days after the reference period, 44 days after the first version and 42 days after the mandatory deadline (12.05.2021). The revised version of the electricity price questionnaire for non households for the 1st semester of 2021 was sent 273 days after the reference period, 182 days after the first version and 181 days after the mandatory deadline (30.03.2022). Revisions were made because some suppliers resubmitted more accurate data. |
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14.2. Punctuality | |||
The legal deadline for submitting the questionnaires is the third month after the reference period. We submit the data before the deadline expires.
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14.2.1. Punctuality - delivery and publication | |||
All questionnaires were delivered on time. |
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15.1. Comparability - geographical | |||
Collected data concern the whole territory, but there is no comparison between different geographical areas. |
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15.1.1. Asymmetry for mirror flow statistics - coefficient | |||
Not applicable |
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15.2. Comparability - over time | |||
From 2007 second semester onwards, prices are reported with a new methodology, therefore data is comparable over time. An exception is the second semester of 2017 in which the prices refer to arithmetic averages rather than consumption-weighted average. This was due to lack of the relevant data. However this is not considered to be a significant break in series. |
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15.2.1. Length of comparable time series | |||
There is no significant 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 | |||
Data sets are internally consistent. |
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Total cost and burden are difficult to be calculated. |
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17.1. Data revision - policy | |||
Whenever data is submitted as provisional, a revision follows as soon as the final data is available. In case one or more data providers submitt a revision, prices are recalculated and submitted as soon as it is possible and no longer than a month after the change occurs. If the revision refers to more than 2 semesters backwards, a preannouncement takes place. When necessary, the semester 1 data is revised when submitting the semester 2 data for consistency reason between semestrial and annual prices. |
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17.2. Data revision - practice | |||
Revision practice is described in S.17.1. |
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17.2.1. Data revision - average size | |||
Household electricity prices collection: 0.003023979 Non-household electricity prices collection: 0.015251538 |
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18.1. Source data | |||
The data come from companies that supply / sell electricity to final households or non-household consumers and they are based on a census process. |
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18.2. Frequency of data collection | |||
For electricity prices: half yearly For electricity price components: yearly |
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18.3. Data collection | |||
The Department sends Eurostat΄s questionnaires to all electricity suppliers. Consumption-weighted average prices are calculated from raw data.
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18.4. Data validation | |||
Submitted data is validated for consistency and completeness, by comparing the values with previous cycles and by checking that the population coverage and response rates are as required. In case of inconsistent price data, the data providers are contacted to request a reconfirmation of the data. |
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18.5. Data compilation | |||
Data represent weighted average prices, which are calculated by using the market shares of electricity supply companies. Procedures for imputation, procedures to derive new variables and to calculate aggregates and complex statistics as well as procedures for adjustment for non-response and the corrections to the design weights to account for differences in response rates are not applied. Procedures for combining input data from different sources are not applicable.
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18.5.1. Imputation - rate | |||
Imputation rate is considered to be zero. |
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18.6. Adjustment | |||
Not applicable. |
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18.6.1. Seasonal adjustment | |||
Seasonable adjustments are not carried out. |
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