The purpose of this analysis is a determination of partial national relationship current status in the St. Petersburg’s market of heat-and-power engineering, showing up weak points in the financial scheme and working up possible ways of its investment opportunities increase. In this analysis considerate general problems of investment opportunities, financial stability and safety of St. Petersburg’s heat-and-power market. As а result of research in this article fix the price of criteria, that can be used for valuation of proposed market mechanism.