Electricity Information provides a comprehensive review of historical and current market trends in the OECD electricity sector, including 2010 preliminary data. An Introduction, notes, definitions and auxiliary information are provided in Part I. Part II of the publication provides an overview of the world electricity developments in 2009, covering world electricity and heat production, input fuel mix, supply and consumption, and electricity imports and exports. A greater focus is given to the 34 OECD countries with more detailed information covering production, installed capacity, input energy mix to electricity and heat production, consumption, electricity trades, input fuel prices and end-user electricity prices. Part III of the publication provides a corresponding statistical overview of developments in the world and OECD electricity and heat market, as well as monthly OECD production and trade electricity data for 2009. Part IV provides, in tabular form, detailed and comprehensive statistical coverage of the power and heat industry developments for each of the OECD member countries and for OECD and IEA regional aggregates. It provides comprehensive statistical details on overall energy consumption, economic indicators, electricity and heat production by energy form and plant type, electricity imports and exports, sectoral energy and electricity consumption as well as prices for electricity and electricity input fuels for each country and regional aggregate. Electricity Information is one of a series of annual IEA statistical publications on major energy sources; other reports are Coal Information, Natural Gas Information, Oil Information and Renewables Information.