|
|
|
|
|
|
|
|
|
|
|
MONTHLY
ELECTRICITY STATISTICS, January 2010
- 36 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PRINCIPLES AND DEFINITIONS |
|
|
|
|
|
|
|
|
General
notes |
|
-
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. |
|
|
-
Where adequate information is not available from external sources estimates
have been made by the IEA. Methodological notes are provided on individual
country pages. |
|
|
-
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. |
|
|
-
Monthly statistics are consistent with those provided in the Quarterly
Statistics published by the IEA. |
|
|
-
Electricity production is reported in TWh for the regional aggregates and in
GWh for the individual countries. The grouping of electricity generation by
source reflects available monthly data and/or small individual quantities. |
|
|
-
Note that historic data is often recalculated. Therefore, the latest
publication should be considered most accurate. Regional and organisational
summaries may also change based on country recalcuations. |
|
|
|
|
|
|
Basic
definitions |
|
|
- 'Production' = |
|
|
Net generation
excludes power station own use. |
|
- 'Combustible Fuels' = |
|
Production from
combustible fuels, including combustible renewables and wastes. |
|
- 'Nuclear' = |
|
|
Energy released by
nuclear fission or nuclear fusion. |
|
- 'Hydro' = |
|
|
Net
generation from hydro facilities including pumped storage production. |
|
|
- 'Geoth./Wind/Solar/Other' = |
|
Generation from
geothermal, wind, solar and other renewables not included in combustible
fuels. |
|
- 'Indigenous Production' = |
|
The sum of
electricity production by fuel type. |
|
- 'Imports/ Exports' = |
|
Amounts
of electricity that have crossed political boundaries of the country, |
|
|
|
|
whether customs
clearence has taken place or not. |
|
- 'Electricity supplied' = |
|
Indigenous production
+ Imports - Exports. |
|
- 'Year'
= |
|
|
Calendar
year (January to December) unless otherwise stated. |
|
|
- 'Year-to-date' = |
|
The sum of all months
from the start of the calendar year to the latest month. |
|
|
|
|
|
|
|
|
|
|
Publication
details and further information |
|
|
-
This publication is released in the middle of each month onto the IEA's
Website. |
|
(http://www.iea.org/publications/index.asp). |
|
-
Data should not be reproduced for publication without permission of Energy
Statistics Division, IEA. |
|
|
|
|
|
|
|
Comments
and queries on the data or on the presentation should be addressed to: |
|
|
Email:
CES@iea.org |
|
|
|
|
|
For
other information please contact the Energy Statistics Division of the IEA
by: |
|
Email:
stats@iea.org |
|
Fax:
+33 (0)1 40 57 66 49 or |
|
Phone:
+33 (0)1 40 57 66 25 |
|
International
Energy Agency |
|
9,
rue de la Fédération, 75739 Paris Cedex 15 - France |
|
|
|
|
|
|
|
©
OECD/IEA, 2010 |
|
|
|
|
|
|
|
|
|
INTERNATIONAL ENERGY AGENCY |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|