Volume 2: Energy Intensity-Italy: -- Energy intensity -- Energy Markets: Commercial -- Energy Markets: Industrial -- Energy Markets: Residential -- Energy Markets: Transport -- Energy payback -- Energy policy -- Energy Policy Act of 2005 -- Energy poverty -- Energy storage -- Energy Transmission: Electricity -- Energy Transmission: Gas -- Energy Transmission: Liquid fluids -- Energy Transmission: Mechanical energy -- Enron -- Enthalpy -- Entropy -- Environmental stewardship -- Environmentally preferable purchasing -- Equatorial Guinea -- Ericsson, John -- Eritrea -- Estonia -- Ethanol: Cellulosic -- Ethanol: Corn -- Ethanol: Sugar beet -- Ethanol: Sugarcane -- Ethanol: Wheat -- Ethiopia -- European Union -- Evans, Oliver -- Exergy -- External combustion engine -- Exxon Valdez oil spill -- ExxonMobil -- F: -- Faraday, Michael -- Federal Energy Regulatory Commission -- Feed-in tariff -- Fiji -- Finland -- Flaring gas -- Flex-fuel vehicles -- Florida -- Flywheels -- Food miles -- Forecasting -- Fossil fuels -- France -- Franklin, Benjamin -- Fuel cells -- Fulton, Robert -- Fundamentals of energy -- Furnaces -- G: -- Gabon -- Gambia -- Gasification -- Gasohol -- Georgia (nation) -- Georgia (US state) -- Geothermal energy -- Germany -- Ghana -- Giant power -- Gibbs, Josiah Willard -- Global warming -- Greece -- Green banking -- Green energy certification -- Green power -- Green pricing -- Greenhouse gases -- Grenada -- Grid-connected systems -- Ground source heat pumps -- Guatemala -- Guinea -- Guinea-Bissau -- Gulf oil spill -- Guyana -- H: -- Haiti -- Hawaii -- Heat island effect -- Heat pumps -- Heat transfer -- Heating degree days -- Heaviside, Oliver -- Helmholtz, Hermann von -- Henry hub -- Hertz, Heinrich -- History Of Energy: Ancient Sumer and Babylon -- History Of Energy: Ancient Egypt -- History Of Energy: Ancient Greece -- History Of Energy: Ancient Rome -- History of Energy: Medieval World -- History Of Energy: Renaissance -- History of Energy: 1700-1800 -- History of Energy: 1800-1850 -- History of Energy: 1850-1900 -- History of Energy: 1900-1950 -- History of Energy: 1950-2000 -- History of Energy: 2000-2010 -- Holding companies -- Holly, Birdsill -- Home Energy Rating Systems -- Honduras -- Houdry, Eugene -- Hubbert, M King -- Hubbert's peak -- Hughes, Thomas P -- Hungary -- Hybrid vehicles -- Hydrogen -- Hydropower -- I: -- Iceland -- Idaho -- Illinois -- Independent System Operators -- India -- Indiana -- Indonesia -- Industrial ecology -- Industrial revolution -- Innovation -- Insulation -- Insull, Samuel -- Intergovernmental panel on climate change -- Internal combustion engine -- Internal Energy Market -- International Energy Agency -- International Energy Forum -- International Renewable Energy Agency -- Investor-owned utilities -- Iowa -- Iran -- Iraq -- Ireland -- Israel -- Italy.

This academic, multi-author reference work serves as a general and non-technical resource for students and teachers to understand the importance of energy; to appreciate the influence of energy on societies around the world; to learn the history of energy; and to initiate educational discussion brought forth by the specific social and topical articles presented in the work.