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Response Measures Models- WEM
World Energy Model (WEM)
Name and contact of the organization

International Energy Agency

International Energy Agency, 9  rue de la Fédération, 75015 Paris, France

Tel: ++33 1 40 57 65 00/01
Fax: ++33 1 40 57 65 59

Description of model WEM is a large-scale mathematical model designed to replicate how energy markets function. The model is made up of six main modules: final energy demand; power generation; refinery and other transformation; fossil-fuel supply; CO2 emissions and investment.  Its main relevance to the response measures is its use for assessing policy changes and, in particular, changes in technology patterns.

The model is mainly used for:  1) analysing global energy prospects; 2) estimating the environmental impact of energy use; 3) analysing the effects of policy actions and technological changes; and 4) estimating investment in the energy sector.
Particular relevance The WEM is relevant in analysing the  development and diffusion of less carbon-intensive technologies, given activities in energy markets.
Coverage World, split in 21 regions
Model applications World Energy Outlook annual reports (

WEO Energy Outlook 2008 Edition - The report contains the prospects for the world energy market up to 2030. The forecast for the energy markets is done using WEM (
Organization's main area of research Energy security, economic development and environmental protection.
Other projects / reseach n/a
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