An accurate forecasting for long-term electricity demand make a major role to the planning of the power system in any country. Vietnam is one of the most economic developing country in the world, and its electricity demand has been increased dramatically high of about 15%/y for last three decades. Contribution of industry and construction sectors in GDP have been increasing year by year, and are currently holding the leading position of the largest consumers with more than 50% sharing in national electricity consumption proportion. |