[en] The electricity sector in addition to being a public utility, requires a substantial investment, explore natural resources and the basis of all production chains and consumption of our society. The dynamics of this sector goes beyond the individual performance of energy companies and will also interfere in matters of political, economic, social and environmental development of nations. The lack of sophistication and low level of development in credit derivatives financial systems in Brazil, both as a healthy situation of the accounts and balance sheets, the fruit of bitter experience in past crises are allowing a better resistance to weather the current crisis. But it is an important trading partner of Brazil, through various business financial economic crises that is affecting the U.S. economy and the world has also affected the economy of our country, but with less intensity. The econometric model used to study the investment to be initiated in 2010 by ELETROBRAS meets a correlation acceptable; this demonstrates that a well dependence exists between power and investment to the projects to be implemented. (author)