Content
About the statistics
Definitions
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Name and topic
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Name: Electricity, annual figures
Topic: Energy and manufacturing
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Responsible division
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Division for Energy and Environmental Statistics
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Definitions of the main concepts and variables
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Gross production of electricity refers to the production that is measured on the generators. The net production may also be calculated by subtracting own consumption in the power stations.
Exports of electric power is power produced in Norway that crosses the Norwegian border.
Imports of electric power is power produced abroad that crosses the Norwegian border.
Gross consumption of electricity is the sum of gross production of electricity and imports less exports of power.
Pump consumption is power used to run pump stations that elevate water from a lower to higher level.
Other own consumption contains light and heating in the power stations in addition to engines, compressors and other production equipment.
Ordinary consumption and flexible consumption: The contracts for ordinary and flexible power are different. Flexible power can be stopped in the event of limited net capacity.
Production value is defined as turnover corrected for changes in stock of finished goods, work in progress and goods and services bought for resale.
Cost of goods and services consumed is the value of goods and services consumed as input in the production process; excluding fixed assets (consumption is recorded as consumption of fixed capital).
Value added is the sum of production value minus the cost of goods and services consumed.
The consumer groups in the table with information on electricity consumption in Norwegian municipalities have the following content.
Mining and manufacturing etc: Mining and extraction, power intensive manufacturing, manufacturing excluding power intensive manufacturing and various supply and remidiation activities.
Services etc: Transportation and storage and construction and other services.
Households and agriculture etc: Agriculture, forestry and fishing, hot-houses, private households and cottages and holiday houses
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Standard classifications
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The classification is based on the standard for sector classification 2007 (SN2007). There is a description of which industries the statistics comprise in section 3.1.
Administrative information
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Regional level
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Municipal and county.
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Frequency and timeliness
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Annual. The statistics are published 15 months after the reference year.
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International reporting
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The annual electricity statistics are reported to Eurostat and the International Energy Agency (IEA).
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Microdata
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Microdata are stored in a Oracle database.
Background
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Background and purpose
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The purpose of the statistics is to give an overview over economic key figures of the power market and to follow the development in supply and use of electricity on national level and on county level. The statistics go back to 1937, but have been changed several times since then.
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Users and applications
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External users are the Ministry of Petroleum and Energy, the Ministry of Finance, Norwegian Water Resources and Energy Directorate, Enova, the International Energy Agency (IEA) and Eurostat. The Annual electricity statistics are important input to the Energy balance and energy account. The data material is also used by the Divison for National Accounts (930) and Divison Industrial Production Statistics in Statistics Norway.
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Coherence with other statistics
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Monthly and annual electricity statistics correspond well.
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Legal authority
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The Statistic act §2-2 and 3-2
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EEA reference
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Data are reported to Eurostat according to Regulation 1099/2008.
Production
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Population
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The enterprise is the statistical unit.
The Electricity statistics contain all electricity plants that have a license for electricity generation, transmission and distribution in addition to trade of electricity.
The Electricity statistics do not contain:
* Production plants having rated output less than 100 kW
* Power stations which although partly owned by Norwegian interests are located outside Norwegian territory
* Electricity production and consumption on offshore installations not connected to land by power cable
* Main office activities in own enterprises
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Data sources and sampling
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Data collection together with Norwegian Water Resources and Energy Directorate.
Total count.
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Collection of data, editing and estimations
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As of 2000, the electricity utilities have reported their data electronically via the system ERAPP.
- Income statements and balance sheets are controlled by auditors
- The annual reports of the enterprises are useful in the revision of data
- Values that are particularly low or high are double checked by contacting the enterprise
- The power balance is controlled in detail
- Power sale to different consumer groups should be in line with the Standard Industrial classification of 2002.
Among other things, maximum and minimum values in addition to percentage changes are calculated.
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Confidentiality
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In some municipalities and counties a few units may account for a large share of the electricity production and consumption. However, these figures are not considered to be particularly detrimental for the relevant enterprises.
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Comparability over time and space
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In the electricity statistics of 2008 the sale to different end users is based on a new version of Norwegian industry classification (SIC2007) . The most important changes are:
- The numbers of end users increase from 27 to 36 categories.
- Power intensive manufacturing now also includes industry 17.1.
- For the first time we also calculate a grid rent for power intensive manufacturing. Since power intensive manufacturing has a very low grid rent compared to other end users, total grid rent for all end users is not comparable with former years.
- We do not publish gross value of production, intermediate consumption and value added at factor prices in the electricity statistics of 2008. Instead of these variables we publish production value, cost of goods and services consumed and value added.
The enterprise is the statistical unit. Prior to 1993 the establishment was the unit, defined as all energy activities located in one distribution area. This change concerns only utilities with activities in several distribution areas and it only affects the total count of electricity utilities.
Accuracy and reliability
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Sources of error and uncertainty
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The results of a statistical survey normally contain certain collection and processing errors. Collection errors can occur due to a respondent giving incorrect information because they misunderstand a question, or they may forget to answer a question. Processing errors can occur in the data during the optical reading or during revisions of the sample.
Despite various data controls, errors can still occur. These can include errors that were not possible to detect during the control routines or incorrect evaluations by executive officers in Statistics Norway.
The statistics is published with Electricity.