Energy Consumption Forecast by Time Series aims to emphasize on the global importance of energy; its consumption; the consumption forecast for planning and decision making. It is duly to be noted that highlighting, extending and encouraging scientific approaches to problem solving, decision making and planning, would play a significant development role in the developing countries; deserving special attention. However, the book discusses the time series forecast methods appropriate for energy consumption; explains the data collection, data analysis, computational and error assessment approaches; and finally how to implement results in the decision process.