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MONTHLY
ELECTRICITY STATISTICS, March 2007
- 36 |
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PRINCIPLES AND DEFINITIONS |
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General
notes |
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The objective of the Monthly Electricity Statistics is to provide an early
indication of supply side trends in the electricity sector. Therefore, to
allow timely publication, the IEA may supplement national statistics with
data from other sources. |
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Where adequate information is not available from external sources estimates
have been made by the IEA. Methodological notes are provided on individual
country pages. |
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Definitions are consistent with the IEA's "Electricity and Heat"
annual questionnaire. Statistics are subject to revision upon official
receipt of the annual questionnaire from National Administrations or improved
data becoming available. |
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Monthly statistics are consistent with those provided in the Quarterly
Statistics published by the IEA. |
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Electricity production is reported in TWh by fuel type. The grouping of
electricity generation by source reflects available monthly data and/or small
individual quantities. |
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Note that historic data is often recalculated. Therefore, the latest
publication should be considered most accurate. |
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Regional
and organisational summaries may also change based on country
recalcuations. |
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Basic
definitions |
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- 'Production' = |
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Net generation
excludes power station own use. |
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- 'Total Indigenous Production'
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The sum of electricity
production by fuel type. |
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- 'Total Consumption (Observed)'
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Total Indigenous
Production + Imports - Exports. |
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- 'Thermal' = |
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Production from
combustible fuels, including biomass. |
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- 'Hydro' = |
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Total output from
hydro and pumped hydro stations, hence ignoring electricity input to pumped
hydro stations. Within the MES, this use of electricity is defined as
occurring on the consumption side of the energy balance, and hence is not
considered. |
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- 'Geo./ Solar/ Wind/ Other' = |
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Generation from
geothermal, solar, wind and all other renewables not included elsewhere. |
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- 'Year'
= |
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Calendar
year (January to December) unless otherwise stated. |
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- 'Year-to-date' = |
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The sum of all months
from the start of the calendar year to the latest month. |
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Publication
details and further information |
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This publication is released in the middle of each month onto the IEA's
Website. |
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(http://www.iea.org/Textbase/publications/index.asp). |
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Data should not be reproduced for publication without permission of Energy
Statistics Division, IEA. |
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Comments
and queries on the data or on the presentation should be addressed to: |
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Email:
CES@iea.org |
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For
other information please contact the Energy Statistics Division of the IEA
by: |
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Email:
stats@iea.org |
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Fax:
+33 (0)1 40 57 66 49 or |
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Phone:
+33 (0)1 40 57 66 25 |
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International
Energy Agency |
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9,
rue de la Fédération, 75739 Paris Cedex 15 - France |
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©
OECD/IEA, 2007 |
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INTERNATIONAL ENERGY AGENCY |
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