The monograph discusses the theoretical and methodological aspects of management of the development of the electric power industry. Methods of estimation of efficiency of use of investment resources for technical re-equipment of power stations are developed. The study of areas of financial efficiency taking into account the risks, the results of multi-criteria analysis of alternative options for the development of electricity in a fuzzy environment. A methodological approach has been developed to assess the effectiveness of integration processes in energy systems and the possibility of using econometric models to predict the performance of regional energy systems has been shown. In addition, a methodological approach to assessing the investment security of energy in the region is presented. It is of interest to researchers, specialists of energy companies, graduate students and undergraduates. It is of interest to researchers, energy specialists, graduate students and students of economic and technical specialties of higher educational institutions.