Power Engineering restructuring has led to the new industry enterprises formation, which requires the development of modern investment attractiveness methods. An objective comparative analysis of Russian power companies is vital to make the valid financial and economic decisions by strategic owners and outside investors. Stock indicators currently in use do not take into account the specific characteristics of power engineering and Russian power companies. The comparison of the energy facilities should be carried out, taking into account the technical state of the generating capacity. The scientific article proposes the inclusion of the specific energy indicators in the consolidated group of the energy companies' investment attractiveness factors. This component reflects the businesses ability of the sustainable cash flow generation, representing the participants' investment potential of the Russian competitive electricity and power market.Keywords: rating agencies, the energy market, financial and economic indicators, the credit rating boundaries, regional and industry indicators, specific energy indicators, trend analysis, investment attractiveness rating.